Context: In computing, directory service or name service maps the names of network resources to their respective network addresses. It is a shared information infrastructure for locating, managing, administering and organizing everyday items and network resources, which can include volumes, folders, files, printers, users, groups, devices, telephone numbers and other objects. A directory service is a critical component of a network operating system. A directory server is a server which provides such a service. Each resource on the network is considered an object by the directory server. Information about a particular resource is stored as a collection of attributes associated with that resource or object. , Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. As the world's fifth-largest country by both area and population, it is the largest country to have Portuguese as an official language and the only one in the Americas. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of . It borders all other South American countries except Ecuador and Chile and covers 47.3% of the continent's land area. Its Amazon River basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage makes Brazil one of 17 megadiverse countries, and is the subject of significant global interest and debate regarding deforestation and environmental protection., Microsoft Servers (previously called "Windows Server System") is a brand that encompasses Microsoft's server products. This includes the Windows Server editions of the Microsoft Windows operating system itself, as well as products targeted at the wider business market. Unlike Microsoft Dynamics or Microsoft Office product lines, most of the products sold under this brand are not intended to be line-of-business services in and of themselves., rsync is a utility that keeps copies of a file on two computer systems. It is commonly found on Unix-like systems and functions as both a file synchronization and file transfer program. The rsync algorithm is a type of delta encoding, and is used for minimizing network usage. Zlib may be used for additional compression, and SSH or stunnel can be used for data security., On Microsoft Servers, a domain controller (DC) is a server computer that responds to security authentication requests (logging in, checking permissions, etc.) within a Windows domain. A "domain" is a concept introduced in Windows NT whereby a user may be granted access to a number of computer resources with the use of a single username and password combination., In computing, a file server (or fileserver) is a computer attached to a network that has the primary purpose of providing a location for shared disk access, i.e. shared storage of computer files (such as documents, sound files, photographs, movies, images, databases, etc.) that can be accessed by the workstations that are attached to the same computer network. The term "server" highlights the role of the machine in the clientserver scheme, where the "clients" are the workstations using the storage. A file server is not intended to perform computational tasks, and does not run programs on behalf of its clients.
It is designed primarily to enable the storage and retrieval of data while the computation is carried out by the workstations., Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks. It is included in most Windows Server operating systems as a set of processes and services. Initially, Active Directory was only in charge of centralized domain management. Starting with Windows Server 2008, however, Active Directory became an umbrella title for a broad range of directory-based identity-related services., Microsoft Corporation (commonly referred to as Microsoft or MS) is an American multinational technology company headquartered in Redmond, Washington, that develops, manufactures, licenses, supports and sells computer software, consumer electronics and personal computers and services. Its best known software products are the Microsoft Windows line of operating systems, Microsoft Office office suite, and Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface tablet lineup. As of 2016, it was the world's largest software maker by revenue, and one of the world's most valuable companies., Microsoft Windows (or simply Windows) is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry with the OS typically associated with IBM PC compatible architecture. Active Windows families include Windows NT, Windows Embedded and Windows Phone; these may encompass subfamilies, e.g. Windows Embedded Compact (Windows CE) or Windows Server. Defunct Windows families include Windows 9x; Windows 10 Mobile is an active product, unrelated to the defunct family Windows Mobile., Windows Phone (WP) is a family of mobile operating systems developed by Microsoft for smartphones as the replacement successor to Windows Mobile and Zune. Windows Phone features a new user interface derived from Metro design language. Unlike Windows Mobile, it is primarily aimed at the consumer market rather than the enterprise market. It was first launched in October 2010 with Windows Phone 7. Windows Phone 8.1 is the latest public release of the operating system, released to manufacturing on April 14, 2014., Samba is a free software re-implementation of the SMB / CIFS networking protocol , and was originally developed by Andrew Tridgell . Samba provides file and print services for various Microsoft Windows clients and can integrate with a Microsoft Windows Server domain , either as a Domain Controller ( DC ) or as a domain member . As of version 4 , it supports Active Directory and Microsoft Windows NT domains . Samba runs on most Unix , OpenVMS and Unix - like systems , such as Linux , Solaris , AIX and the BSD variants , including Apple 's OS X Server , and OS X client ( version 10.2 and greater ) . Samba is standard on nearly all distributions of Linux and is commonly included as a basic system service on other Unix - based operating systems as well . Samba is released under the terms of the GNU General Public License . The name Samba comes from SMB ( Server Message Block ) , the name of the standard protocol used by the Microsoft Windows network file system ., Andrew "Tridge" Tridgell (born 28 February 1967) is an Australian computer programmer. He is the author of and a contributor to the Samba file server, and co-inventor of the rsync algorithm., A Windows domain is a form of a computer network in which all user accounts, computers, printers and other security principals, are registered with a central database located on one or more clusters of central computers known as domain controllers. Authentication takes place on domain controllers. Each person who uses computers within a domain receives a unique user account that can then be assigned access to resources within the domain. Starting with Windows 2000, Active Directory is the Windows component in charge of maintaining that central database. The concept of Windows domain is in contrast with that of a workgroup in which each computer maintains its own database of security principals., Samba is a Brazilian musical genre and dance style, with its roots in Africa via the West African slave trade and African religious traditions, particularly of Angola and the Congo, through the samba de roda genre of the northeastern state of Bahia, from which it derived. Although there were various forms of samba in Brazil in the form of various popular rhythms and regional dances that originated from drumming, samba as a music genre is seen as originally a musical expression of urban Rio de Janeiro, then the capital and largest city of Imperial Brazil., Subject: samba , Relation: use, Options: (A) authentication (B) computer network (C) environmental protection (D) industry (E) language (F) music (G) office (H) security (I) service (J) storage (K) synchronization (L) trade
Output: computer network