Jawaban CCNA Chapter 1

 CCNA Discovery 1 Chapter 1

Chapter 1 - Personal Computer Hardware

1. Applications can be grouped into general use software or industry specific software. What is example of industry specific software?

	an educational tool
	presentation
	spreadsheet
	word processing
	database management

2. 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.

3. Which three terms describe different types of computers?

	operating system, network, desktop
	laptop, desktop, Windows
	laptop, desktop, mainframe
	network, desktop, mainframe
	laptop, desktop, mainframe
	operating system, Windows, Linux

4. What are two benefits of connecting a laptop computer to a docking station?

	Mobility is increased and less power is required.
	Mobility is increased and an external monitor can be used.
	An external monitor can be used and more wireless security options are available.
	More wireless security options are available and alternate connectivity options may be available.
	Alternate connectivity options may be available and an external monitor can be used.

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. What are two advantages of purchasing a preassembled computer?

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

8. 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

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

	Video Card
	Sound Card
	Modem Card
	Network Interface Card

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

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

11. 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

12. What two functions does a UPS provide that a surge protector does not?

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

13. Which computer component is considered the nerve center of the computer system and is responsible for processing all of the data within the machine?

	RAM
	CPU
	Video Card
	Sound Card
	Operating System

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

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

15. Because of the potentially dangerous voltage levels, which two devices should you not open unless you have been specifically trained to work on them?

	mouse and power supply
	hard drive and monitor
	microprocessor and keyboard
	monitor and power supply
	hard drive and power supply

16. 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

17. A user reports that a peripheral device that was installed correctly last week has not been functioning since the PC was booted today. All other PC functions are working properly. What are three things a service technician should do to solve the problem?

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

18. Which two steps should be performed when installing a peripheral device?

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

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

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

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

	PDA
	Laptop
	Desktop
	Mainframe
	Gaming Device

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

	1
	2
	255
	256