Document:

Unassociated Document

    WARRANT
      AGREEMENT

     

    WARRANT
      AGREEMENT (“Agreement”),
      dated
      as of June __, 2007, by and between Sentra Consulting Corp., a Nevada
      corporation (the “Company”),
      and
      ____________ (“Warrantholder”).
      Certain capitalized terms used herein are defined in Section 14
      hereof.

     

    In
      consideration of the mutual terms, conditions, representations, warranties
      and
      agreements herein set forth, and for other good and valuable consideration,
      the
      receipt and sufficiency of which is hereby acknowledged, the parties hereto
      hereby agree as follows:

     

    
      	Section 1.	Issuance of Warrants.

    

     

    The
      Company hereby issues and grants to Warrantholder __________________
      (________)
      stock
      purchase warrants
      (hereinafter referred to as “Warrants”).
      Each
      Warrant shall grant to the holder thereof the right to purchase one (1) share
      of
      common stock of the Company (the “Common
      Stock”).
      Commencing six (6) months from the date hereof (the “Warrant
      Commencement Date”),
      and
      terminating on _____________, 2010 (the “Warrant
      Expiration Date”),
      the
      holder shall have the right, subject to the satisfaction of the conditions
      to
      exercise set forth in Section 7 of this Agreement, to purchase one (1) share
      of
      Common Stock per each Warrant (the shares of Common Stock issuable upon exercise
      of the Warrants being collectively referred to herein as the “Warrant
      Shares”)
      at an
      exercise price of $.50 per Warrant Share (the “Exercise
      Price”).
      The
      number of Warrant Shares issuable on exercise of each Warrant and the Exercise
      Price are all subject to adjustment pursuant to Section 8 of this Agreement.
      

    
       

      
        	Section 2.	Form
                of Warrant Certificates.

      

       

    

    Promptly
      after the execution and delivery of this Agreement by the parties hereto, the
      Company may, in its sole and absolute discretion, cause to be executed and
      delivered to Warrantholder one or more certificates evidencing the Warrants
      (the
“Warrant
      Certificates”).
      Each
      Warrant Certificate delivered hereunder shall be substantially in the form
      set
      forth in Exhibit A attached hereto, and may have such letters, numbers or other
      identification marks and legends, summaries or endorsements printed thereon
      as
      the Company may deem appropriate and that are not inconsistent with the terms
      of
      this Agreement or as may be required by applicable law, rule or regulation.
      Each
      Warrant Certificate shall be dated the date of execution by the
      Company.

    
       

      
        	Section 3.	Execution
                of Warrant Certificates.

      

       

    

    Each
      Warrant Certificate delivered hereunder shall be signed on behalf of the Company
      by at least one of the following: its Chief Executive Officer, President,
      Secretary or Treasurer. Each such signature may be in the form of a facsimile
      thereof and may be imprinted or otherwise reproduced on the Warrant
      Certificates.

     

    If
      any
      officer of the Company who signed any Warrant Certificate ceases to be an
      officer of the Company before the Warrant Certificate so signed shall have
      been
      delivered by the Company, such Warrant Certificate nevertheless may be delivered
      as though such person had not ceased to be such officer of the
      Company.

    
       

      
        	Section 4.	Registration
                of Ownership and Transfer.

      

       

    

    Warrant
      Certificates shall be issued in registered form only. The Company will keep
      or
      cause to be kept books for registration of ownership and transfer of each
      Warrant Certificate issued pursuant to this Agreement. Each Warrant Certificate
      issued pursuant to this Agreement shall be numbered by the Company and shall
      be
      registered by the Company in the name of the holder thereof (initially the
      Warrantholder). The Company may deem and treat the registered holder of any
      Warrant Certificate as the absolute owner thereof (notwithstanding any notation
      of ownership or other writing thereon made by anyone) for the purpose of any
      exercise thereof and for all other purposes, and the Company shall not be
      affected by any notice to the contrary.

    
       

      
        
           

        

        
           

          
            

          

        

        
           

        

      

       

      
        	Section 5.	
                No
                  Transfers.

              

      

       

    

    No
      Warrant may be sold, pledged, hypothecated, assigned, conveyed, transferred
      or
      otherwise disposed of without the agreement of the Company, which will not
      be
      unreasonably withheld.

    
       

      
        	Section 6.	
                Mutilated
                  or Missing Warrant Certificates.

              

      

       

    

    If
      any
      Warrant Certificate is mutilated, lost, stolen or destroyed, the Company shall
      issue, upon surrender and cancellation of any mutilated Warrant Certificate,
      or
      in lieu of and substitution for any lost, stolen or destroyed Warrant
      Certificate, a new Warrant Certificate of like tenor and representing an equal
      number of Warrants. In the case of a lost, stolen or destroyed Warrant
      Certificate, a new Warrant Certificate shall be issued by the Company only
      upon
      the Company’s receipt of reasonably satisfactory evidence of such loss, theft or
      destruction and, if requested, an indemnity or bond reasonably satisfactory
      to
      the Company.

    
       

      
        	Section 7.	
                Exercise
                  of Warrants.

              

      

       

    

    A.  Exercise.
      Subject
      to the terms and conditions set forth in this Section 7, Warrants may be
      exercised, in whole or in part (but not as to any fractional part of a Warrant),
      at any time or from time to time on and after the Warrant Commencement Date
      and
      on or prior to 5:00 p.m., Eastern time, on the Warrant Expiration
      Date.

     

    In
      order
      to exercise any Warrant, Warrantholder shall deliver to the Company at its
      office referred to in Section 15 the following: (i) a written notice
      in the form of the Election to Purchase appearing at the end of the form of
      Warrant Certificate attached as Exhibit B attached hereto, to Purchase hereto
      of
      such Warrantholder’s election to exercise the Warrants, which notice shall
      specify the number of such Warrantholder’s Warrants being exercised;
      (ii) the Warrant Certificate or Warrant Certificates, if any, evidencing
      the Warrants being exercised; and (iii) payment of the aggregate Exercise
      Price.

     

    All
      rights of Warrantholder with respect to any Warrant that has not been exercised,
      on or prior to 5:00 p.m., Eastern time, on the Warrant Expiration Date shall
      immediately cease and such Warrants shall be automatically cancelled and
      void.

     

    B. Payment
      of Exercise Price.
      Payment
      of the Exercise Price with respect to Warrants being exercised hereunder shall
      be made by the payment to the Company, in cash, by check or wire transfer,
      of an
      amount equal to the Exercise Price multiplied by the number of Warrants then
      being exercised.

     

    C. Payment
      of Taxes.
      The
      Company shall be responsible for paying any and all issue, documentary, stamp
      or
      other taxes that may be payable in respect of any issuance or delivery of
      Warrant Shares on exercise of a Warrant. Notwithstanding anything contained
      herein to the contrary, the Warrantholder shall be responsible for all taxes
      that may be due and payable by the Warrantholder as a result of the issuance
      of
      this Warrant to the Warrantholder or as a result of the issuance of the Warrant
      Shares upon due exercise hereof.

     

    
      
         

      

      
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    D. Delivery
      of Warrant Shares.
      Upon
      receipt of the items referred to in Section 7A, the Company shall, as promptly
      as practicable, execute and deliver or cause to be executed and delivered,
      to or
      upon the written order of Warrantholder, and in the name of Warrantholder or
      Warrantholder’s designee, a stock certificate or stock certificates representing
      the number of Warrant Shares to be issued on exercise of the Warrant(s). The
      certificates issued to Warrantholder or its designee shall bear any restrictive
      legend required under applicable law, rule or regulation. The stock certificate
      or certificates so delivered shall be registered in the name of Warrantholder
      or
      such other name as shall be designated in said notice. A Warrant shall be deemed
      to have been exercised and such stock certificate or stock certificates shall
      be
      deemed to have been issued, and such holder or any other Person so designated
      to
      be named therein shall be deemed to have become a holder of record of such
      shares for all purposes, as of the date that such notice, together with payment
      of the aggregate Exercise Price and the Warrant Certificate or Warrant
      Certificates evidencing the Warrants to be exercised, is received by the Company
      as aforesaid. If the Warrants evidenced by any Warrant Certificate are exercised
      in part, the Company shall, at the time of delivery of the stock certificates,
      deliver to the holder thereof a new Warrant Certificate evidencing the Warrants
      that were not exercised or surrendered, which shall in all respects (other
      than
      as to the number of Warrants evidenced thereby) be identical to the Warrant
      Certificate being exercised. Any Warrant Certificates surrendered upon exercise
      of Warrants shall be canceled by the Company.

    
       

      
        	Section 8.	
                Adjustment
                  of Number of Warrant Shares Issuable Upon Exercise of a Warrant
                  and
                  Adjustment of Exercise Price.

              

      

       

    

    A.  Adjustment
      for Stock Splits, Stock Dividends, Recapitalizations.
      The
      number of Warrant Shares issuable upon exercise of each Warrant and the Exercise
      Price shall each be proportionately adjusted to reflect any stock dividend,
      stock split, reverse stock split, recapitalization or the like affecting the
      number of outstanding shares of Common Stock that occurs after the date hereof.
      

     

    B.  Adjustments
      for Reorganization, Consolidation, Merger.
      If
      after the date hereof, the Company (or any other entity, the stock or other
      securities of which are at the time receivable on the exercise of the Warrants),
      consolidates with or merges into another entity or conveys all or substantially
      all of its assets to another entity, then, in each such case, Warrantholder,
      upon any permitted exercise of a Warrant (as provided in Section 7), at any
      time
      after the consummation of such reorganization, consolidation, merger or
      conveyance, shall be entitled to receive, in lieu
      of
      the stock or other securities and property receivable upon the exercise of
      the
      Warrant prior to such consummation, the stock or other securities or property
      to
      which such Warrantholder would have been entitled upon the consummation of
      such
      reorganization, consolidation, merger or conveyance if such Warrantholder had
      exercised the Warrant immediately prior thereto, all subject to further
      adjustment as provided in this Section 8. The successor or purchasing entity
      in
      any such reorganization, consolidation, merger or conveyance (if other than
      the
      Company) shall duly execute and deliver to Warrantholder a written
      acknowledgment of such entity’s obligations under the Warrants and this
      Agreement.

     

    C.
       Adjustments
      Upon Issuance of Additional Stock.

     

    If,
      at
      any time prior to the Warrant Expiration Date, the Company shall issue
      ''Additional Stock'' (as hereafter defined) for a consideration per share less
      than the Exercise Price, then and in that event, the Exercise Price shall be
      reduced concurrently with that issue to a price equal to the aggregate
      consideration paid per share in that issue. For purposes of this Section 8(C),
      ''Additional Stock'' shall mean all shares of Common Stock issued by the Company
      after the date on which the Warrants were first issued other than shares of
      Common Stock (or securities convertible into shares of Common Stock) issued
      or
      issuable at any time (i) to officers, directors, and employees of, and
      consultants to, the Company after the date on which the Warrants were first
      issued as designated and approved by the Board of Directors; (ii) in connection
      with equipment leasing or bank financing transactions approved by the Company's
      Board of Directors; (iii) shares of Common Stock issued upon the exercise of
      securities convertible into Common Stock which were granted prior to the date
      on
      which the Warrants were first issued; and (iv) securities of the Company issued
      to a Strategic Investor (hereafter defined). As used herein, “Strategic
      Investor” means that a majority of the Company's Board of Directors determines
      that such investor is a strategic investor and the Company does not issue to
      such investor more than ten percent (10%) of the Company's then outstanding
      securities. 

     

    
      
         

      

      
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    For
      the
      purpose of making any adjustment in the Exercise Price as provided herein,
      the
      consideration received by the Company for any issue or sale of shares of Common
      Stock will be computed as follows:

    

    (i)
      To
      the extent it consists of cash, as the amount of cash received by the Company
      before deduction of any offering expenses payable by the Company and any
      underwriting or similar commissions, compensation, or concessions paid or
      allowed by the Company in connection with the issue or sale;

    

    (ii)
      To
      the extent it consists of property other than cash, at the fair market value
      of
      that property as determined in good faith by the Company's Board of Directors;
      and

    

    (iii)
      If
      shares of Common Stock are issued or sold together with other stock or
      securities or other assets of the Company for a consideration which covers
      both,
      as the portion of the consideration so received that may be reasonably
      determined in good faith by the Board of Directors to be allocable to those
      shares of Common Stock.

     

    If
      the
      Company (i) grants any rights or options to subscribe for, purchase, or
      otherwise acquire shares of Common Stock, or (ii) issues or sells any security
      convertible into shares of Common Stock, then, in each case, the price per
      share
      of Common Stock issuable on the exercise of the rights or options or the
      conversion of the securities will be determined by dividing the total amount,
      if
      any, received or receivable by the Company as consideration for the granting
      of
      the rights or options or the issue or sale of the convertible securities, plus
      the minimum aggregate amount of additional consideration payable to the Company
      on exercise or conversion of the securities, by the maximum number of shares
      of
      Common Stock issuable on the exercise of conversion. Such a grant, issue, or
      sale will be considered to be an issue or sale for cash of the maximum number
      of
      shares of Common Stock issuable on exercise or conversion at the price per
      share
      determined under this section, and the Exercise Price will be adjusted as
      provided above to reflect (on the basis of that determination) the issue or
      sale. No further adjustment of the Exercise Price will be made as a result
      of
      the actual issuance of shares of Common Stock on the exercise of any such rights
      or options or the conversion of any such convertible securities.

    

    D.  Notice
      of Certain Events.

     

    Upon
      the
      occurrence of any event resulting in an adjustment in the number of Warrant
      Shares (or other stock or securities or property) receivable upon the exercise
      of the Warrants or the Exercise Price, the Company shall promptly thereafter
      (i)
      compute such adjustment in accordance with the terms of the Warrants, (ii)
      prepare a certificate setting forth such adjustment and showing in detail the
      facts upon which such adjustment is based, and (iii) mail copies of such
      certificate to Warrantholder.

    
       

      
        	Section 9.	
                Reservation
                  of Shares.

              

      

       

    

    The
      Company shall at all times reserve and keep available, free from preemptive
      rights, out of the aggregate of its authorized but unissued Common Stock, or
      its
      authorized and issued Common Stock held in its treasury, the aggregate number
      of
      the Warrant Shares deliverable upon the exercise of all outstanding Warrants,
      for the purpose of enabling it to satisfy any obligation to issue the Warrant
      Shares upon the due and punctual exercise of the Warrants, through 5:00 p.m.,
      Eastern time, on the Warrant Expiration Date. 

    
       

      
        
           

        

        
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        	Section 10.	
                No
                  Impairment.

              

      

       

    

    The
      Company shall not, by amendment of its certificate of incorporation or bylaws,
      or through reorganization, consolidation, merger, dissolution, issuance or
      sale
      of securities, sale of assets or any other voluntary action, willfully avoid
      or
      seek to avoid the observance or performance of any of the terms of the Warrants
      or this Agreement, and shall at all times in good faith assist in the carrying
      out of all such terms and in the taking of all such actions as may be necessary
      or appropriate in order to protect the rights of Warrantholder under the
      Warrants and this Agreement against wrongful impairment. Without limiting the
      generality of the foregoing, the Company: (i) shall not set or increase the
      par
      value of any Warrant Shares above the amount payable therefor upon exercise,
      and
      (ii) shall take all actions that are necessary or appropriate in order that
      the
      Company may validly and legally issue fully paid and nonassessable Warrant
      Shares upon the exercise of the Warrants.

    
       

      
        	Section 11.	
                Representations
                  and Warranties of Warrantholder.

              

      

       

    

    Warrantholder
      represents and warrants to the Company that, on the date hereof and on the
      date
      the Warrantholder exercises the Warrant pursuant to the terms of this
      Agreement:

     

    A. Warrantholder
      understands that the Warrants and the Warrant Shares have not been registered
      under the Securities Act and acknowledges that the Warrants and the Warrant
      Shares must be held indefinitely unless they are subsequently registered under
      the Securities Act or an exemption from such registration becomes available.
      

     

    B.
       Warrantholder
      is acquiring the Warrants for Warrantholder’s own account for investment and not
      with a view to, or for sale in connection with, any distribution
      thereof.

     

    C.
       Warrantholder
      understands that the Warrants and the Warrant Shares are being offered and
      sold
      to him in reliance on an exemption from the registration requirements of United
      States federal and state securities laws under Regulation D promulgated under
      the Securities Act and that the Company is relying upon the truth and accuracy
      of the representations, warranties, agreements, acknowledgments and
      understandings of the Warrantholder set forth herein in order to determine
      the
      applicability of such exemptions and the suitability of the Warrantholder to
      acquire the Warrants and Warrant Shares.  

     

    D.  
      All the
      representations made by the Warrantholder in the Promissory Note dated the
      date
      hereof between the Company and the Warrantholder (the “Note”) shall be true and
      correct as of the date the Warrantholder exercises the Warrant. Warrantholder
      further understands that if the information provided by the Warrantholder in
      the
      Note between the Company and the Warrantholder are not true and accurate before
      or at the time of the exercise of the Warrants, the Warrantholder shall inform
      the Company before or at the time of the exercise of the Warrants.

     

    E. Each
      certificate representing the Warrants and the Warrant Shares shall be endorsed
      with the following legends, in addition to any other legend required to be
      placed thereon by applicable federal or state securities laws:

     

    
      
         

      

      
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    “THE
      SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE
      SECURITIES ACT OF 1933 AND MAY NOT BE SOLD OR TRANSFERRED IN THE ABSENCE OF
      SUCH
      REGISTRATION OR WITHOUT AN EXEMPTION THEREFROM OR AN OPINION OF COUNSEL IN
      A
      FORM SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER
      THE SECURITIES ACT OF 1933.” 

    

      Warrantholder
      consents to the Company making a notation on its records or giving instructions
      to any transfer agent of the Company in order to implement the restrictions
      on
      transfer of the Warrants and Warrant Shares set forth in this Section
      11.

    
       

      
        	Section 12.	
                No
                  Rights or Liabilities as Stockholder.

              

      

       

    

    No
      holder, as such, of any Warrant Certificate shall be entitled to vote, receive
      dividends or be deemed the holder of Common Stock which may at any time be
      issuable on the exercise of the Warrants represented thereby for any purpose
      whatever, nor shall anything contained herein or in any Warrant Certificate
      be
      construed to confer upon the holder of any Warrant Certificate, as such, any
      of
      the rights of a stockholder of the Company or any right to vote for the election
      of directors or upon any matter submitted to stockholders at any meeting
      thereof, or to give or withhold consent to any corporate action (whether upon
      any recapitalization, issuance of stock, reclassification of stock, change
      of
      par value or change of stock to no par value, consolidation, merger, conveyance
      or otherwise), or to receive notice of meetings or other actions affecting
      stockholders or to receive dividend or subscription rights, or otherwise, until
      such Warrant Certificate shall have been exercised in accordance with the
      provisions hereof and the receipt and collection of the Exercise Price and
      any
      other amounts payable upon such exercise by the Company. No provision hereof,
      in
      the absence of affirmative action by Warrantholder to purchase Warrant Shares
      shall give rise to any liability of such holder for the Exercise Price or as
      a
      stockholder of the Company, whether such liability is asserted by the Company
      or
      by creditors of the Company.

    
       

      
        	Section 13.	
                Fractional
                  Interests.

              

      

       

    

    The
      Company shall not be required to issue fractional shares of Common Stock upon
      exercise of the Warrants or to distribute certificates that evidence fractional
      shares of Common Stock. If any fraction of a Warrant Share would, except for
      the
      provisions of this Section 13, be issuable on the exercise of a Warrant, the
      number of Warrant Shares to be issued by the Company shall be rounded to the
      nearest whole number, with one-half or greater being rounded up.

    
       

      
        	Section 14.	
                Definitions.

              

      

       

    

    Unless
      the context otherwise requires, the terms defined in this Section 14,
      whenever used in this Agreement shall have the respective meanings hereinafter
      specified and words in the singular or in the plural shall each include the
      singular and the plural and the use of any gender shall include all
      genders.

     

    “Business
      Day”
shall
      mean any day on which banking institutions are generally open for business
      in
      New York.

     

    “Common
      Stock”
means
      the common stock of the Company.

     

    
      
         

      

      
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    “Exercise
      Price”
shall
      be the price per Warrant Share at which Warrantholder is entitled to purchase
      Warrant Shares upon exercise of any Warrant determined in accordance with
      Section 7 and subject to adjustment as provided in Sections 8 and 16
      hereof.

     

    “Person”
shall
      mean any corporation, association, partnership, limited liability company,
      joint
      venture, trust, organization, business, individual, government or political
      subdivision thereof or governmental body.

     

    “Securities
      Act”
shall
      mean the Securities Act of 1933, as amended, or any similar federal statute
      as
      at the time in effect, and any reference to a particular section of such Act
      shall include a reference to the comparable section, if any, of such successor
      federal statute.

    
       

      
        	Section 15.	
                Notices.

              

      

       

    

    All
      notices, consents, requests, waivers or other communications required or
      permitted under this Agreement (each a “Notice”)
      shall
      be in writing and shall be sufficiently given (a) if hand delivered,
      (b) if sent by nationally recognized overnight courier, or (c) if sent
      by registered or certified mail, postage prepaid, return receipt requested,
      addressed as follows:

     

    if
      to the
      Company: 

    

    Sentra
      Consulting Corp. 

    466
      Central Avenue, 2nd
      Floor

    Cedarhurst,
      New York 11516

    Telephone:
      (516) 301-3939 

    Facsimile:
      (516) ___________

    

    if
      to
      Warrantholder: 

    

    ________________________

    ________________________

    ________________________

    ________________________

     

    

    or
      such
      other address as shall be furnished by any of the parties hereto in a Notice.
      Any Notice shall be deemed given upon receipt.

    
       

      
        	Section 16.	
                Supplements,
                  Amendments and Waivers.

              

      

       

    

    This
      Agreement may be supplemented or amended only by a subsequent writing signed
      by
      each of the parties hereto (or their successors or permitted assigns), and
      any
      provision hereof may be waived only by a written instrument signed by the party
      charged therewith.

    
       

      
        	Section 17.	
                Successors
                  and Assigns.

              

      

       

    

    Except
      as
      otherwise provided herein, the provisions of this Agreement shall be binding
      upon and inure to the benefit of and be enforceable by the successors and
      permitted assigns of the parties hereto. Warrants issued under this Agreement
      may be assigned by Warrantholder only to the extent such assignment satisfies
      the restrictions on transfer set forth in this Agreement; any attempted
      assignment of Warrants in violation of the terms hereof shall be void
ab
      initio.

    
       

      
        
           

        

        
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        	Section 18.	
                Termination.

              

      

       

    

    This
      Agreement (other than Sections 7C, 11, and Sections 15 through 26,
      inclusive, and all related definitions, all of which shall survive such
      termination) shall terminate on the earlier of (i) the Warrant Expiration Date
      and (ii) the date on which all Warrants have been exercised by the Warrantholder
      or redeemed by the Company. 

    
       

      
        	Section 19.	
                Governing
                  Law; Jurisdiction.

              

      

       

    

    A.  Governing
      Law.
      This
      Agreement and each Warrant Certificate issued hereunder shall be governed by
      and
      construed in accordance with the laws of the state of New York and the federal
      laws of the United States applicable herein.

     

    B.  Submission
      to Jurisdiction.
      Each
      party to this Agreement hereby irrevocably and unconditionally submits, for
      itself and its property, to the jurisdiction of the state of New York, county
      of
      New York, or if it can obtain jurisdiction in the federal courts located in
      such
      county, and any appellate court from any thereof, in respect of actions brought
      against it as a defendant, in any action, suit or proceeding arising out of
      or
      relating to this Agreement or the Warrant Certificates and Warrants to be issued
      pursuant hereto, or for recognition or enforcement of any judgment, and each
      of
      the parties hereto hereby irrevocably and unconditionally agrees that all claims
      in respect of any such action, suit or proceeding may be heard and determined
      in
      such courts. Each of the parties hereto agrees that a final judgment in any
      such
      action, suit or proceeding shall be conclusive and may be enforced in other
      jurisdictions by suit on the judgment or in any other manner provided by
      law.

     

    C.  Venue.
      Each
      party hereto irrevocably and unconditionally waives, to the fullest extent
      it
      may legally and effectively do so, any objection which it may now or hereafter
      have to the laying of venue of any action, suit or proceeding arising out of
      or
      relating to this Agreement, or the Warrant Certificates and Warrants to be
      issued pursuant hereto, in any court referred to in this Subsection B. Each
      of
      the parties hereby irrevocably waives, to the fullest extent permitted by law,
      the defense of an inconvenient forum to the maintenance of such action, suit
      proceeding in any such court and waives any other right to which it may be
      entitled on account of its place of residence or domicile.

    
       

      
        	Section 20.	
                Third
                  Party Beneficiaries.

              

      

       

    

    Each
      party intends that this Agreement shall not benefit or create any right or
      cause
      of action in or on behalf of any Person other than the parties hereto and their
      successors and permitted assigns.

    
       

      
        	Section 21.	
                Headings.

              

      

       

    

    The
      headings in this Agreement are for convenience only and shall not affect the
      construction or interpretation of this Agreement.

    
       

      
        	Section 22.	
                Entire
                  Agreement.

              

      

       

    

    This
      Agreement, together with the Warrant Certificates and Exhibits, and the Note,
      dated of even date herewith, by and between the Company and the Warrantholder,
      constitute the entire agreement and understanding between the parties hereto
      with respect to the subject matter hereof and shall supersede any prior
      agreements and understandings between the parties hereto with respect to such
      subject matter.

    
       

      
        
           

        

        
          -
            8
            -

          
            

          

        

        
           

        

      

       

      
        	Section 23.	
                Expenses.

              

      

       

    

    Each
      of
      the parties hereto shall pay its own expenses and costs incurred or to be
      incurred in negotiating, closing and carrying out this Agreement and in
      consummating the transactions contemplated herein, except as otherwise expressly
      provided for herein.

    
       

      
        	Section 24.	
                Neutral
                  Construction.

              

      

       

    

    The
      parties to this Agreement agree that this Agreement was negotiated fairly
      between them at arm’s length and that the final terms of this Agreement are the
      product of the parties’ negotiations. Each party represents and warrants that it
      has sought and received legal counsel of its own choosing with regard to the
      contents of this Agreement and the rights and obligations affected hereby.
      The
      parties agree that this Agreement shall be deemed to have been jointly and
      equally drafted by them, and that the provisions of this Agreement therefore
      should not be construed against a party or parties on the grounds that such
      party or parties drafted or was more responsible for the drafting of any such
      provision(s).

    
       

      
        	Section 25.	
                Representations
                  and Warranties.

              

      

       

    

    The
      Company hereby represents and warrants to the Warrantholder that:

     

    (a)  the
      Company has all requisite corporate power and authority to (i) execute and
      deliver this Agreement and (ii) issue and sell the Common Stock upon the
      conversion thereof and carry out provisions of this Agreement. All corporate
      action on the part of the Company, its officers, directors and stockholders
      necessary for the authorization, execution and delivery of this Agreement,
      the
      performance of all obligations of the Company hereunder, and the authorization
      (or reservation for issuance), sale and issuance of the Common Stock to be
      sold
      hereunder has been taken or will be taken prior to the date hereof;

     

    (b)  this
      Agreement constitutes a valid and legally binding obligation of the Company,
      enforceable in accordance with its terms, except (i) as limited by applicable
      bankruptcy, insolvency, reorganization, moratorium and other laws relating
      to
      application affecting enforcement of creditor’s rights generally and (ii) as
      limited by laws relating to the availability of specific performance, injunctive
      relief of other equitable remedies;

     

    (c)  the
      Common Stock issuable upon the conversion thereof that is being purchased
      hereunder, when issued, sold and delivered in accordance with the terms of
      this
      Agreement for the consideration expressed herein, will be duly and validly
      issued, fully paid and nonassessable and will be free of restrictions on
      transfer, other than restrictions on transfer under applicable state and federal
      securities laws;

     

    (d)  subject
      in part to the truth and accuracy of Warrantholder’s representations set forth
      in Section 11 of this Agreement, the offer, sale and issuance of the Common
      Stock issuable upon the conversion thereof as contemplated by this Agreement
      are
      exempt from the registration requirements of the Securities Act and the
      qualification or registration requirements of any state securities or other
      applicable blue sky laws; and

     

    (e)  the
      execution, delivery and performance of this Agreement and the consummation
      of
      the transactions contemplated hereby will not result in any such violation,
      or
      be in conflict with or constitute, with or without the passage of time and
      giving of notice, either a default under any such provision or an event that
      results in creation of any lien, charge or encumbrance upon any assets of the
      Company or the suspension, revocation, impairment, forfeiture or nonremoval
      of
      any material permit, license, authorization or approval applicable to the
      Company, its business or operations or any of its assets or
      properties.

    
       

      
        
           

        

        
          -
            9
            -

          
            

          

        

        
           

        

      

       

      
        	Section 26.	
                Counterparts.

              

      

       

    

    This
      Agreement may be executed in counterparts and by facsimile and each such
      counterpart shall for all purposes be deemed to be an original, and all such
      counterparts shall together constitute but one and the same
      instrument.

     

    [Remainder
      of Page Intentionally Omitted; Signature Pages to Follow]

     

    
      
         

      

      
        -
          10
          -

        
          

        

      

      
         

      

    

     

    IN
      WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly
      executed as of the day and year first above written.

     

    
      	 	 	COMPANY: 
	 	 	 
	 	 	SENTRA CONSULTING
              CORP.
	 	 	 
	 	 
	 	By:  	 
	 	
              

              Name:

            
	 	Title 

    

    
       

       

      
        	 	 	WARRANTHOLDER:
	 	 	 
	 	 
	 	By:  	 
	 	
                

                Name:

              
	 	Title 

      

       

      
        
           

        

        
          -
            11
            -

          
            

          

        

        
           

        

      

    

    EXHIBIT A

     

    WARRANT
      FORM

     

    THE
      SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE
      SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE. THE
      SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD, ASSIGNED,
      TRANSFERRED OR OTHERWISE DISPOSED OF EXCEPT IN COMPLIANCE WITH SUCH ACT AND
      LAWS. THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO THE TERMS
      AND CONDITIONS OF, AND MAY ONLY BE TRANSFERRED IN ACCORDANCE WITH, A WARRANT
      AGREEMENT BETWEEN SENTRA CONULTING CORP. AND THE HOLDER OF THE SECURITIES
      REPRESENTED BY THIS CERTIFICATE. COPIES OF SUCH AGREEMENT MAY BE OBTAINED UPON
      WRITTEN REQUEST TO THE COMPANY.

     

    
      	NO.     	 	
              _______________WARRANTS

            

    

     

     

    FORM
      OF

     

    Warrant
      Certificate

     

    SENTRA
      CONSTULTING CORP.

     

    This
      Warrant Certificate certifies that _____________ (the “Warrantholder”),
      is
      the registered holder of _______ Warrants (the “Warrants”)
      to
      purchase shares (the “Warrant
      Shares”)
      of
      Common Stock of Sentra Consulting Corp. (the “Company”).
      Each
      Warrant entitles the holder, subject to the satisfaction of the conditions
      to
      exercise set forth in Section 7 of the Warrant Agreement referred to below,
      to
      purchase from the Company at any time or from time to time on and after six
      (6)
      months from the date hereof (the “Warrant
      Commencement Date”)
      and
      terminate on or prior to 5:00 p.m., Eastern time, on __________, 2010
      (the “Warrant
      Expiration Date”)
      one
      fully paid and nonassessable Warrant Share at the Exercise Price set forth
      in
      the Warrant Agreement. The number of Warrant Shares for which each Warrant
      is
      exercisable and the Exercise Price are subject to adjustment as provided in
      the
      Warrant Agreement.

     

    The
      Warrants evidenced by this Warrant Certificate are part of a duly
      authorized issue of Warrants to purchase Warrant Shares and are issued pursuant
      to a Warrant Agreement, dated as of ___________, 2007 (the “Warrant
      Agreement”),
      between the Company and the Warrantholder, which Warrant Agreement is hereby
      incorporated by reference in and made a part of this instrument and is hereby
      referred to for a description of the rights, limitation of rights, obligations,
      duties and immunities thereunder of the Company and Warrantholder.

     

    Warrantholder
      may exercise vested Warrants by surrendering this Warrant Certificate, with
      the
      Election to Purchase attached hereto properly completed and executed, together
      with payment of the aggregate Exercise Price, at the offices of the Company
      specified in Section 15 of the Warrant Agreement. If upon any exercise of
      Warrants evidenced hereby the number of Warrants exercised shall be less than
      the total number of Warrants evidenced hereby, there shall be issued to the
      holder hereof or its assignee a new Warrant Certificate evidencing the
      number of Warrants not exercised.

     

    
      
         

      

      
         

        
          

        

      

      
         

      

    

     

    This
      Warrant Certificate, when surrendered at the offices of the Company specified
      in
      Section 15 of the Warrant Agreement, by the registered holder thereof in person,
      by legal representative or by attorney duly authorized in writing, may be
      exchanged, in the manner and subject to the limitations provided in the Warrant
      Agreement, for one or more other Warrant Certificates of like tenor evidencing
      in the aggregate a like number of Warrants.

     

    The
      Company may deem and treat the registered holder hereof as the absolute owner
      of
      this Warrant Certificate (notwithstanding any notation of ownership or other
      writing hereon made by anyone), for the purpose of any exercise hereof and
      for
      all other purposes, and the Company shall not be affected by any notice to
      the
      contrary.

     

    WITNESS
      the signatures of the duly authorized officers of the Company.

     

    Dated:
      ______________, 2007 

     

    
      	 	 	SENTRA
              CONSULTING
              CORP.
	 	 	 
	 	By:  	 
	 	
              
Name:
	 	Title 

    

     

    
      
         

      

      
        1-ii

        
          

        

      

      
         

      

    

     

    Exhibit
      B

     

    Form
      of Election to Purchase

     

    The
      undersigned hereby irrevocably elects to exercise _________ of the Warrants
      evidenced by the attached Warrant Certificate to purchase Warrant Shares, and
      herewith tenders (or is concurrently tendering) payment for such Warrant Shares
      in an amount determined in accordance with the terms of the Warrant Agreement.
      The undersigned requests that a certificate representing such Warrant Shares
      be
      registered in the name of __________________,
      whose
      address is ___________________________ and
      that
      such certificate be delivered to ___________________________,
      whose
      address is __________________________.
      If said
      number of Warrants is less than the number of Warrants evidenced by the Warrant
      Certificate (as calculated pursuant to the Warrant Agreement), the undersigned
      requests that a new Warrant Certificate evidencing the number of Warrants
      evidenced by this Warrant Certificate that are not being exercised be registered
      in the name of _________________________,
      whose
      address is ____________________________ and
      that
      such Warrant Certificate be delivered to ______________________,
      whose
      address is ___________________________________________.

     

    Dated:
        
                        ,
        
        

    

    Name
      of
      holder of Warrant Certificate:

     

    __________________________________

     

    __________________________________

    (Please
      Print)

    

    Address:
      ___________________________

     

                    
      ___________________________

     

    Federal
      Tax ID No.: ___________________

     

    Signature:
      __________________________

    

    Note: 
      The
      above
      signature must correspond with the name as written in the first sentence of
      the
      attached Warrant Certificate in every particular, without alteration or
      enlargement or any change whatever, and if the certificate evidencing the
      Warrant Shares or any Warrant Certificate representing Warrants not exercised
      is
      to be registered in a name other than that in which this Warrant Certificate
      is
      registered, the signature above must be guaranteed.

    

    

    

    Dated:
                   
       ,Unassociated Document

    PROMISSORY
      NOTE

     

    
      	
              $150,000.00

            	 	
              June
                22,
                2007

            

    

     

    FOR
      VALUE RECEIVED,
      the
      undersigned, KARAT
      PLATINUM LLC, (the
      “Maker”), promises to pay to SENTRA
      CONSULTING CORP.,
      (the
“Payee”), on or before ninety (90) days from the date of this Note (the “Payment
      Date”) the principal sum of One Hundred and Fifty Thousand and 00/100
      ($150,000.00) Dollars or the aggregate unpaid principal amount of all advances
      made by Payee to Maker hereunder, whichever is less (the “Principal Amount”),
      and all interest accrued thereon as provided herein.

    

    Interest
      shall accrue on the unpaid balance of the Principal Amount at a rate of one
      and
      one-half percent (1.5%) per month (the “Interest Rate”). All interest payable
      hereunder shall be computed on the basis of actual days elapsed and shall be
      due
      and payable on the Payment Date.

    

    Maker
      shall have the right to prepay all or any portion of the Outstanding Principal
      Amount and accrued interest thereon at any time without penalty or premium.
      All
      payments hereunder when paid shall be applied first to the payment of all
      accrued interest and the balance shall be applied to principal.

    

    Notwithstanding
      any provision contained herein, the total liability of Maker for payment of
      interest pursuant hereto, including late charges, shall not exceed the maximum
      amount of such interest permitted by law to be charged, collected, or received
      from Maker, and if any payments by Maker include interest in excess of such
      a
      maximum amount, Payee shall apply such excess to the reduction of the unpaid
      principal amount due pursuant hereto, or if none is due, such excess shall
      be
      refunded.

    

    Upon
      the
      occurrence and continuance of an Event of Default (hereafter defined) (whatever
      the reason for such Event of Default and whether it shall be voluntary or
      involuntary or be effected by operation of law or pursuant to any judgment,
      decree or order of any court or any order, rule or regulation of any
      administrative or governmental body), interest shall accrue on the unpaid
      balance of the Principal Amount at a rate of two percent (2%) per month (the
      “Default Interest Rate”).

    

    1. Events
      of Default.
      In case
      one or more of the following events (each, an “Event of Default”) (whatever the
      reason for such Event of Default and whether it shall be voluntary or
      involuntary or be effected by operation of law or pursuant to any judgment,
      decree or order of any court or any order, rule or regulation of any
      administrative or governmental body) shall have occurred and be
      continuing:

    

    a. Default
      in the payment, when due or declared due, of any principal or interest payments
      hereunder.

    

    b. Maker
      makes a general assignment for the benefit of creditors; or, in the absence
      of
      such application, consent, acquiescence or action, a trustee, receiver or other
      custodian is appointed for Maker; or for a substantial part of the property
      of
      Maker; or any bankruptcy, reorganization, debt arrangement or other proceeding
      under any bankruptcy or insolvency law, or any dissolution or liquidation
      proceeding, is authorized or instituted by, or instituted against, Maker; or
      any
      warrant of attachment or similar legal process is issued against any substantial
      part of the property of Maker.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    c. Any
      representation or warranty made by Maker under this Note shall be untrue or
      misleading in any material respect when made.

    

    d. Maker
      shall have breached any of its covenants and agreements
      hereunder.

     

    then,
      in
      each case where an Event of Default occurs, the Payee, by notice in writing
      to
      Maker shall inform Maker of such Event of Default and if such default is not
      cured within forty-five (45) days from the date such notice is received by
      Maker, then Payee, may, at its option, declare the outstanding Principal Amount
      to be due and payable immediately, and upon any such declaration the same shall
      become immediately due and payable. 

     

    2.
      General.

    

    a. This
      Note
      shall be binding upon and inure to the benefit of and be enforceable by the
      respective successors and assigns of the Maker and Payee.

    

    b. All
      notices, requests, claims, demands and other communications given or made
      pursuant hereto shall be in writing and shall be deemed to have been duly given
      if delivered in person, overnight courier prepaid, or mailed by prepaid first
      class registered or certified mail, postage prepaid, return receipt requested
      to
      the respective parties at the following addresses (or at such other address
      for
      a party as shall be specified in a notice given in accordance with this
      Section):

    

    
      	(a)  	
              If
                to the Maker:

               

              
                Karat
                  Platinum LLC

                15
                  Hoover Street

                Inwood,
                  New York 11096

                Attention:
                  Chief Executive Officer

                

                With
                  copies to:

                 

                Horowitz
                  & Reiser

                30
                  Broad Street

                New
                  York, NY 1004

                Attention:
                  Sam Reiser, Esq.

              

            

    

    
       

      
        
          
          

        

        
          2

          
            

          

        

        
          
          

        

      

       

      	(b)  	
              If
                to Payee: 
                

                Sentra
                  Consulting Corp. 

                466
                  Central Avenue, 2nd
                  Floor

                Cedarhurst,
                  New York 11516

                Attention:
                  Chief Executive Officer

                 

                With
                  copies to:

                

                David
                  Lubin & Associates, PLLC

                26
                  East Hawthorne Avenue

                Valley
                  Stream, NY 11580

                Attn:
                  David Lubin, Esq.

              

            

    

     

    All
      such
      notices, requests and other communications will (i) if delivered personally
      to
      the address as provided in this Section, be deemed given upon delivery, (ii)
      if
      delivered by overnight courier to the address as provided in this Section,
      be
      deemed given on the earlier of the first business day following the date sent
      by
      such overnight courier or upon receipt or (iii) if delivered by mail in the
      manner described above to the address provided in this Section, be deemed given
      on the earlier of the third business day following mailing or upon
      receipt.

    

    c. This
      Note
      is to be governed by and construed in accordance with the laws of the State
      of
      New York. In any action brought under or arising out of this Note, the Maker
      hereby consents to the in personam jurisdiction of any state or federal court
      sitting in New York, New York, waives any claim or defense that such forum
      is
      not convenient or proper, and consents to service of process by any means
      authorized by New York law.

    

    d.
       Maker
      hereby waives presentment, demand for payment, protest, and all other demands
      and notices in connection with the delivery, acceptance, performance and
      enforcement of this Note and authorizes Payee, without notice or further
      consent, to grant extensions of time in the payment of any monies under this
      Note, and to waive compliance of any provision of this Note.

    

    e. In
      the
      event of a default in the payment of this Note, Maker shall pay Payee's
      reasonable costs and expenses of collection, including attorneys’ fees and
      costs. 

    

    
      
        
        

      

      
        3

        
          

        

      

      
        
        

      

    

     

    IN
      WITNESS WHEREOF, the undersigned has duly executed this Note on the date first
      set forth above.

    

    

    KARAT
      PLATIINUM LLC

    

    

    By:
      /s/
      David
      Neuberg                     

    Name:
      David Neuberg

    Title:
       Member

     

    
      
        
        

      

      
        4

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