Rabu, 17 Oktober 2012
CHAPTER - 1
1 Which adapter enables a computer system to exchange information with other systems on a local network?
#network interface card
2 What measurement is commonly associated with computer processing speed?
#hertz
3 Which computer component is considered the nerve center of the computer system and is responsible for processing all of the data within the machine?
#CPU
4 Why do servers often contain duplicate or redundant parts?
#Servers should be accessible at all times.
5 What are two benefits of connecting a laptop computer to a docking station? (Choose two.)
#An external monitor can be used.
#Alternate connectivity options may be available.
6 What characteristic of word processing software would make it a local application?
#The software is stored on the local hard drive.
7 A user plans to run multiple applications simultaneously on a computer. Which computer component is essential to accomplish this?
#RAM
8 What are two advantages of purchasing a preassembled computer? (Choose two.)
#usually a lower cost
#adequate for performing most general applications
9 Applications can be grouped into general use software or industry specific software. What are two examples of industry specific software? (Choose two.)
#an educational tool
#medical practice management software
10 What is the main storage drive used by servers, desktops, and laptops?
#hard drive
11 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? (Choose three.)
#Use the testing functionality on the peripheral itself, if available.
#Disconnect all cables connected to the computer except those connected to the peripheral.
#Ensure that the peripheral is powered on.
12 What two functions does a UPS provide that a surge protector does not? (Choose two.)
#It provides backup power from an internal battery.
#It gives the user time to safely shut down the computer if the power fails.
13 Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?
#surge suppressor
14 Because of the potentially dangerous voltage levels, which two devices should you not open unless you have been specifically trained to work on them? (Choose two.)
#monitor
#power supply
15 What can be used to prevent electrostatic discharge (ESD)?
#grounding strap
16 How many unique values are possible using a single binary digit?
#2
17 Administrators at a multicampus college need access to their schedules wherever the administrators go. Which computing device would be the most appropriate?
#PDA
18 Which two steps should be performed when installing a peripheral device? (Choose two.)
#Download and install the most current driver.
#Connect the peripheral using an appropriate cable or wireless connection.
19 How is a server different from a workstation computer?
#The server provides services to clients.
20 Which three terms describe different types of computers? (Choose three.)
#laptop
#desktop
#mainframe
21 In newer operating systems, how are system resources assigned by default when components are installed?
#dynamically assigned between the component and the operating system
