CCNA Discovery 1: DHomeSB Chapter 1 Exam Answers v4.0

1. A user plans to run multiple applications simultaneously on a computer. Which computer component is essential to accomplish this?

  • RAM
  • NIC
  • video card
  • sound card
  • storage device

2. What are two benefits of connecting a laptop computer to a docking station? (Choose two.)

  • Mobility is increased.
  • Less power is required.
  • An external monitor can be used.
  • More wireless security options are available.
  • Alternate connectivity options may be available.

3. What are two advantages of purchasing a preassembled computer? (Choose two.)

  • usually a lower cost
  • exact components may be specified
  • extended waiting period for assembly
  • adequate for performing most general applications
  • suited for customers with special needs

4. What is the main storage drive used by servers, desktops, and laptops?

  • tape drive
  • hard drive
  • optical drive (DVD)
  • floppy disk drive

5. Why do servers often contain duplicate or redundant parts?

  • Servers require more power and thus require more components.
  • Servers should be accessible at all times.
  • Servers can be designed as standalone towers or rack mounted.
  • Servers are required by networking standards to have duplicate parts.

6. What measurement is commonly associated with computer processing speed?

  • bits
  • pixels
  • hertz
  • bytes

7. Which two steps should be performed when installing a peripheral device? (Choose two.)

  • Download and install the most current driver.
  • Connect the peripheral using any cable and any available port on the computer.
  • Connect the peripheral using an appropriate cable or wireless connection.
  • Test the peripheral on another machine before installing it on the one where it will be used.
  • Check the computer documentation to see if the peripheral vendor is compatible with the PC ven

8. A user reports that a peripheral device that was installed correctly last week has not been functioningPC was booted today. All other PC functions are working properly. What are three things a service tshould do to solve the problem? (Choose three.)

  • Use the testing functionality on the peripheral itself, if available.
  • Verify that all cables are connected properly.
  • Disconnect all cables connected to the computer except those connected to the peripheral.
  • Ensure that the peripheral is powered on.
  • Disconnect the peripheral and verify that the computer is operating normally.
  • Reload the computer operating system.

9. Applications can be grouped into general use software or industry specific software. What are two examples of industry specific software? (Choose two.)

  • presentation
  • CAD
  • word processing
  • spreadsheet
  • contacts/scheduling management
  • medical practice management

10. What can be used to prevent electrostatic discharge (ESD)?

  • dry and non humid conditions
  • carpeted floor
  • grounding strap
  • uncluttered work space

11. Which computer component is considered the nerve center of the computer system and is responsibl processing all of the data within the machine?

  • RAM
  • CPU
  • video card
  • sound card
  • operating system

12. What is a word processor?

  • It is a program designed to perform a specific function.
  • It is a physical computer component.
  • It is a program that controls the computer resources.
  • It is a functional part of an operating system.

13. Which three terms describe different types of computers? (Choose three.)

  • operating system
  • network
  • laptop
  • desktop
  • Windows
  • mainframe

14. What is the purpose of the ASCII code?

  • translates digital computer language into binary language
  • translates bits into bytes
  • interprets graphics digitally
  • represents letters, characters, and numbers with bits

15. What two functions does a UPS provide that a surge protector does not? (Choose two.)

  • It protects the computer from voltage surges.
  • It provides backup power from an internal battery.
  • It protects the computer from sudden voltage spikes.
  • It gives the user time to phone the electrical company.
  • It gives the user time to safely shut down the computer if the power fails.
  • It provides backup power through a generator provided by the wall outlet.

16. How is a server different from a workstation computer?

  • The server works as a standalone computer.
  • The server is designed to provide services to clients.
  • The workstation has fewer applications installed.
  • The workstation has more users who attach to it.

Explanation: Servers provide services such as file management, email, web pages, log management, financial transactions, databases, and more.

17. Which adapter card enables a computer system to exchange information with other systems on a local network?

  • video card
  • sound card
  • modem card
  • network interface card

18. Because of the potentially dangerous voltage levels, which two devices should you not open unlessyou have been specifically trained to work on them? (Choose two.)

  • mouse
  • printer
  • monitor
  • keyboard
  • hard drive
  • power supply

19. In newer operating systems, how are system resources assigned by default when components are installed?

  • manually assigned by the operating system
  • manually assigned by the administrator
  • statically assigned by the component to a preset resource
  • dynamically assigned between the component and the operating system

20. Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?

  • CPU
  • surge suppressor
  • motherboard
  • hard drive

21. What are two benefits of hooking up a laptop to a docking station? (Choose two.)

  • Mobility is increased.
  • The keyboard can be changed to a QWERTY-style keyboard.
  • An external monitor can be used.
  • More wireless security options are available.
  • Alternate connectivity options may be available.

22. What characteristic of word processing software would make it a local application?

  • The application is shared between users.
  • The software is stored on the local hard drive.
  • The software is accessible through a web page.
  • The software has the ability to manipulate text and graphics.

23. Administrators at a multicampus college need access to their schedules wherever the administrators computing device would be the most appropriate?

  • PDA
  • laptop
  • desktop
  • mainframe
  • gaming device

24. How many unique values are possible using a single binary digit?

  • 1
  • 2
  • 4
  • 8
  • 9
  • 16

Explanation: A bit is stored and transmitted as one of two possible discrete states. Each bit can only have one of two possible values, 0 or 1. The term bit is an abbreviation of “binary digit” and represents the smallest piece of data.

25. What are two examples of output peripheral devices? (Choose two.)

  • printer
  • flash drive
  • external DVD
  • speakers
  • external modem

26. A user needs to run multiple applications simultaneously on a computer. Which computer feature is important in the determination of how many simultaneous applications can be run?

  • amount of RAM
  • clock speed of CPU
  • driver for video card
  • amount of cache memory
  • size of hard disk
  • RPM speed of the hard disk

27. If a peripheral device is not functioning, what are three things you should do to solve the problem? (Choose three.)

  • Verify that all cables are connected properly.
  • Disconnect all cables connected to the computer except those connected to the peripheral.
  • Ensure that the peripheral is powered on.
  • Use the testing functionality on the peripheral itself, if available.
  • Disconnect the peripheral and verify that the computer is operating normally.
  • Reload the computer operating system.

28. Which PC component is used to enable a computer system to exchange information with othersystems on an Ethernet network?

  • NIC
  • serial port
  • parallel port
  • IR port
  • USB port

29. A computer user is interested in computer storage. Which storage device typically has the higheststorage capacity?

  • Blu-ray disc
  • DVD disc
  • hard disk
  • static memory

30. Which low-cost component is designed to remove only overvoltages from a power line?

  • UPS
  • power supply
  • surge suppresor
  • extension cord that has an on/off switch
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