Short Answer - File: Chapter 19-Portable Computing

Short Answer
[QUESTION]
1. What are the minimum CPU, memory, and hard disk requirements for a modern Windows computer system?
Ans: A Windows system requires a 1GHz CPU, 1GB (32-bit) or 2GB (64-bit) of RAM, and 16GB (32-bit) or 32 GB (64-bit) of hard disk.
Page: 396
Difficulty: Hard
[QUESTION]
2. What are the realistic recommended hardware specs for a thick client?
Ans: Recommended hardware specs for a thick client include: 1GHz or faster CPU, at least 1GB (32-bit) or 2GB (64-bit) of RAM, and at least 16GB (32-bit) or 32 GB (64-bit) of GB hard disk.
Page: 396
Difficulty: Medium
[QUESTION]
3. What should be the motherboard considerations for a thick client?
Ans: The motherboard for a thick client should include: memory slots, mass storage support, video, sound, networking, and USB ports.
Page: 396
Difficulty: Hard
[QUESTION]
4. Briefly describe a thin client.
Ans: A thin client is a system designed to handle only the operating system and some very basic applications, with an absolute minimum amount of hardware required by the operating system. Much of a thin client’s work is outsourced. Examples of thin clients include single-purpose systems, like point-of-sale machines (cash registers).
Page: 396
Difficulty: Hard
[QUESTION]
5. How is virtualization most often used on workstations?
Ans: With workstations, virtualization is most often used to run a second OS on top of the OS installed on the computer’s hard drive.
Page: 397
Difficulty: Medium
[QUESTION]
6. What are hardware considerations on a virtualization workstation?
Ans: RAM is the most important thing in virtualization. A powerful 64-bit CPU that has many cores will also help your virtual machines run smoothly.
Page: 397
Difficulty: Medium
[QUESTION]
7. Briefly describe the users and their primary need for a graphics workstation.
Ans: Professional photographers and graphic designers use graphics workstations. Graphics designers need to have the clearest view possible of their images and image editing software. Therefore, the primary need for a graphics workstation is a large, high-quality monitor.
Page: 397
Difficulty: Medium
[QUESTION]
8. What are the primary hardware considerations of a graphics workstation?
Ans: The graphics workstation should have a fast CPU, lots of RAM, a large, high-quality monitor, and high-end video components.
Page: 397-398
Difficulty: Easy
[QUESTION]
9. What specialized input devices do audio editing workstations use?
Ans: Audio editing workstations frequently make use of specialized input devices, referred to as control surfaces, which mimic the look and feel of older, analog mixing consoles. They have a large number of programmable inputs that make controlling the software much faster and more accurate than with just a mouse and keyboard.
Page: 398
Difficulty: Medium
[QUESTION]
10. How would you share a printer on a home server PC?
Ans: Open the Devices and Printers applet in the Control Panel, right-click on an installed printer, choose Printer properties, and then check the Share this printer checkbox on the Sharing tab.
Page: 399-400
Difficulty: Medium
[QUESTION]
11. What type of RAID should you use on a home server PC?
Ans: Use a RAID 1 configuration at a minimum (need two identical drives). If you can afford it and your motherboard supports it, get four identical drives and run in RAID 10.
Page: 402
Difficulty: Medium
[QUESTION]
12. What five components comprise an optimal home theater?
Ans: An optimal home theater has five components:
-
A monitor, television, or projector
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Surround-sound speakers
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A stereo receiver
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A home theater PC
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Network connectivity (such as a cable box or Ethernet)
Page: 402
Difficulty: Easy
[QUESTION]
13. What kind of hardware support for sound is needed in a home-theater PC?
Ans: The home-theater PC needs a sound card or built-in sound processor that supports 5.1 or 7.1 stereo.
Page: 402
Difficulty: Medium
[QUESTION]
14. What is the preferred connector between a television and a home-theater PC?
Ans: HDMI carries both the video signal and the surround sound audio signal, so if you plug it into the television directly from the PC, the rig will use the television’s speakers by default.
Page: 402-403
Difficulty: Medium
[QUESTION]
15. For the best output, what type of connection should exist between the sound card and the stereo receiver?
Ans: For the best output, the sound card connects to the stereo receiver via S/PDIF, through either the optical connector or coaxial connector.
Page: 402
Difficulty: Hard
[QUESTION]
16. What are the types of signal HDMI carries?
Ans: HDMI carries both the video signal and the surround-sound audio signal.
Page: 402
Difficulty: Medium
[QUESTION]
17. What kind of connections are needed to stream media?
Ans: A home-theater PC needs access to content, usually through Gigabit Ethernet, to get streaming media. It could use Wi-Fi (802.11n or better), though wired is best, especially for HD content. For a television signal, the PC needs a television tuner.
Page: 404-405
Difficulty: Medium
[QUESTION]
18. What is the advantage of performing a clean installation?
Ans: The advantage of performing a clean installation is that any problems with an old OS are not carried over to the new one.
Page: 408
Difficulty: Easy
[QUESTION]
19. What is the disadvantage of performing a clean installation?
Ans: The disadvantage of performing a clean installation is that all applications must be reinstalled, and each application must be reconfigured according to the user’s preferences.
Page: 408
Difficulty: Medium
[QUESTION]
20. What is an upgrade installation?
Ans: An upgrade installation is an installation of Windows on top of a previously installed version.
Page: 408
Difficulty: Easy
[QUESTION]
21. When multibooting Windows and Linux, which of the two should be installed first, or does it matter?
Ans: The Linux installers add this multiboot capability by default, but Windows does not. Therefore, you need to install Windows first, then install Linux.
Page: 409
Difficulty: Medium
[QUESTION]
22. In multibooting, why would you use Boot Camp?
Ans: You might use Boot Camp if you have a Windows program that must be run, but your only computer is an Apple machine. Boot Camp enables you to install Windows on an Apple machine.
Page: 409
Difficulty: Hard
[QUESTION]
23. When configuring a system for multibooting, what basic actions must be carried out?
Ans: When configuring a computer for multibooting, there are two basic rules: first, you must format the system partition in a file system that is common to all installed operating systems; and second, you must install the operating systems in order from oldest to newest (or from Windows to other).
Page: 409
Difficulty: Hard
[QUESTION]
24. What is the Preboot Execution Environment (PXE)?
Ans: PXE is an interface that uses multiple protocols such as IP, DHCP, and DNS to enable your computer to boot from a network location. It is enabled in the BIOS System Setup, and the boot order must specify PXE or Network as the first boot option. Not every NIC supports PXE. To boot from a network location without PXE, you can create boot media that forces your PC to boot from a network location.
Page: 420
Difficulty: Hard
[QUESTION]
25. What is NetBoot, and how is it useful?
Ans: NetBoot is an installation tool for Mac OS X. It can be used to identically boot several remote Mac OS X machines or to simultaneously load the same applications on such machines.
Page: 421
Difficulty: Hard
[QUESTION]
26. What is the problem with a system if it displays a “No Boot Device present when booting off the startup disk” error during installation?
Ans: If the system displays “No Boot Device present when booting off the startup disk” error, then either the startup disc is bad or the CMOS is not set to look at the disk drive first for boot-up.
Page: 421
Difficulty: Hard
[QUESTION]
27. What can cause lockups during installation?
Ans: A lockup during installation may be caused by bad optical discs, optical drives, or hard drives. Faults on a USB-based drive can stop an installation. Problems with a downloaded ISO image can also cause lockups.
Page: 422
Difficulty: Easy
[QUESTION]
28. What are some common post-installation tasks?
Ans: Some common post-installation tasks include updating the OS with patches and service packs; upgrading drivers; restoring user data files; and migrating and retiring systems.
Page: 423
Difficulty: Medium
[QUESTION]
29. Distinguish between a patch and a service pack.
Ans: A patch is a fix for a piece of a program found to be defective. A service pack is a set of patches bundled together.
Page: 423
Difficulty: Medium
QUESTION
30. What is the User State Migration Tool (USTM) in Windows?
Ans: USTM is a tool used in large-scale deployments of Windows to facilitate the migration of many users. The USMT’s primary use is in businesses because it has to be run in a Windows Server Active Directory domain.
Page: 424
Difficulty: Medium
[QUESTION]
31. Why process need to happen before a user can get rid of an old system?
Ans: When a user decides to retire an old system, he or she must move the data and users to a new system, or at least a hard drive. This process is called migration.
Page: 425
Difficulty: Easy
[QUESTION]
32. What are three basic principles when migrating or retiring a computer?
Ans: Follow three principles when migrating or retiring a computer:
-
Migrate users and data in a secure environment.
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Remove data remnants from hard drives that you store or give to charity.
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Recycle the older equipment.
Page: 425
Difficulty: Hard.
[QUESTION]
33. What is a zero-fill (or overwrite) operation on a disk?
Ans: A zero-fill (or overwrite) operation on a disk is a process that returns the disk to a state that is close to its original state by writing zeroes to every location on the disk.
Page: 426
Difficulty: Medium
[QUESTION]
34. What is drive wiping and how is it done?
Ans: Drive wiping is the process of erasing old, deleted data that has not been overwritten yet. It is done by overwriting free space on a disk with junk so that the original data will be more difficult to recover.
Page: 426
Difficulty: Medium
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