ch1 A+

Question 1

which unit of measurement is used to indicate the hard drive speed?

Answer 1

revolutions per minute

Question 2

Which devices are considered input devices?

Answer 2

camera, biometric authentication device

Question 3

Which type of memory is primarily used as cache memory?

Answer 3

Static RAM

Question 4

What is indicated by the contrast ratio of a monitor?

Answer 4

the difference in the intensity of light between the brightest white and darkest black that can be displayed

Question 5

What are two hardware requirements for computers that will be used to run multiple virtual machines?

Answer 5

large amounts of ram, a multicore CPU

Question 6

memory technology allows two memory modules to be accessed at the same time?

Answer 6

double-sided

Question 7

When a new PC is being built, which component has the most influence when selecting the case and power supply?

Answer 7

motherboard

Question 8

Which two factors must be considered when replacing old RAM modules in a PC?

Answer 8

the new RAM must be compatible with the motherboard, the speed of the new RAM must be supported by the chipset

Question 9

What component would connect to the motherboard through the use of this 24-pin connector?

Answer 9

power supply

Question 10

What electrical unit refers to the number of electrons moving through a circuit per second?

Answer 10

current

Question 11

A user playing a game on a gaming PC with a standard EIDE 5400 RPM hard drive finds the performance unsatisfactory. Which hard drive upgrade would improve performance while providing more reliability and more energy efficiency?

Answer 11

SSD

Question 12

what is disk management?

Answer 12

initialized disks, creates partitions, and formats partitions

Question 13

what does it mean to format?

Answer 13

prepares a hard drive to store information

Question 14

what is scandisk or CHKDSK?

Answer 14

checks the integrity of files and folders on a hard drive by scanning the file system. also physical errors

Question 15

what does it mean to optimize drives?

Answer 15

(Defrag) optimizes space on a hard drive to allow faster access to programs and data

Question 16

what is disk cleanup?

Answer 16

clears space on a hard drive by searching for files that can be safely deleted

Question 17

what is a system file checker?

Answer 17

scans the operating system’s critical files and replaces files that are corrupt. boot disks

Question 18

which circumstance increases the likelihood of ESD damage to a computer?

Answer 18

working in low levels of humidity

Question 19

What is the function of the Windows Compatibility center?

Answer 19

to run a scan on a system to detect incompatible software and hardware

Question 20

Which Microsoft utility can scan Windows 7 for hardware and software incompatibility issues?

Answer 20

upgrade advisor

Question 21

technicians can use this Microsoft tool to remove undesired settings when creating a disk image for cloning an operating system

Answer 21

sysprep

Question 22

what are two types of computer use interface?

Answer 22

API, OpenGL

Question 23

hard drive ____ are complete circles on one side of a hard disk platter

Answer 23

tracks

Question 24

what type of disk volume stores data in stripes on multiple physical disks and uses parity for each stripe to provide fault tolerance?

Answer 24

RAID 5

Question 25

what contains information on how hard drive partitions are organized?

Answer 25

windows registry

Question 26

what are two ways that network operating systems (NOS) differ from desktop operating systems?

Answer 26

Network operating systems can support many users at the same time, but desktop operating systems can only support a limited number of users at a time. Network operating systems have strong security and account management capability, but desktop operating systems have limited security and account management capability.