IT Essentials v4.1 Chapter 3 (questions and answers)

1
What is a function of the adapter cards that are installed in a computer?
to transfer external power to the motherboard
to connect the motherboard to internal memory
to connect internal power cables to the motherboard
to provide functionality for external components to be connected to the computer
2
Which two connections should be provided to a floppy disk drive during installation? (Choose two.)
a floppy data cable to connect the FDD to the motherboard
a cable from the power supply to the Berg power connector on the FDD
a cable from the 3-pin fan power connector into the Berg power connector on the FDD
a data cable from the Molex connector of the optical drive to the Berg connector on the FDD
a cable from the 20-pin ATX power connector socket on the motherboard to the Berg power connector on the FDD
3
When building a computer, which two components are normally installed in 3.5-inch drive bays? (Choose two.)
hard drive
optical drive
floppy drive
flash drive
video card
4
Which two connectors are used to connect external peripherals? (Choose two.)
EIDE
Molex
PATA
PS/2
USB
5
Which type of drive is installed in a 5.25-inch bay?
hard drive
optical drive
floppy drive
LS120 drive
6
What is the most reliable way for users to buy the correct RAM to upgrade a computer?
Buy RAM that is the same color as the memory sockets on the motherboard.
Ensure that the RAM chip is the same size as the ROM chip.
Ensure that the RAM is compatible with the peripherals installed on the motherboard.
Check the motherboard manual or manufacturer’s website.
7
What is a convenient way that a technician can tell whether a ribbon cable is for an IDE hard drive or a floppy drive?
The IDE cable has a colored stripe on one edge.
The floppy cable motherboard connector is normally gray.
The IDE cable is gray.
The floppy cable has a twist in the cable.
8
Which action is recommended to prevent the motherboard from contacting the metal base of the case?
Ensure that the non-conductive side of the case is beneath the motherboard.
Use standoffs to keep the motherboard above the metal base.
Place a non-conductive barrier between the motherboard and the metal base.
Use a self-adhesive non-conductive membrane on the underside of the motherboard.
9
A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error?
It issues a number of short beeps.
The LED on the front of the computer case flashes a number of times.
It places an error message in the BIOS.
It locks the keyboard.
10
A technician is installing a new power supply in a computer. Which type of power connector should be used to connect to an ATX motherboard?
Berg
mini-Molex
Molex
20-pin connector
11

Refer to the exhibit. What is the order of steps that should be followed for a power supply installation in a computer?
Steps 1, 2, 4
Steps 1, 3, 2
Steps 1, 4, 3
Steps 2, 3, 4
12
What should be the next installation step after all the internal components of a PC have been installed and connected to the motherboard and power supply?
Connect the monitor cable.
Connect the network cable.
Reattach the side panels to the case.
Connect the power cables to the computer.
13
What is a function of the BIOS?
enables a computer to connect to a network
provides temporary data storage for the CPU
performs a check on all internal components
provides graphic capabilities for games and applications
14
When installing a CPU in a ZIF socket, how should the technician align the pins to avoid damage?
Pin 1 is always aligned with the opposite corner from the base of the lever.
Pin 1 on the CPU is aligned with Pin 1 on the ZIF socket.
Pin 1 is aligned with the corner closest to the memory.
The removed corner of the CPU is always aligned with the corner opposite Pin 1.
15
What is a function of a video adapter card?
stores video files in RAM
connects a computer to a video storage device
provides the appropriate drivers for the monitor
provides an interface between a computer and a display monitor
16

Refer to the exhibit. Which should be the last step when connecting external cables to a computer?
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
17
After a technician has assembled a new computer, it is necessary to configure the BIOS. At which point must a key be pressed to start the BIOS setup program?
before the computer is powered on
during the Windows load process
during the POST
after the POST, but before Windows starts to load
18
Where should internal drives be installed in a computer?
in internal bays
on the AGP channel
on the motherboard
on PCIe expansion slots
19
A field technician has been asked to install a wireless 802.11g NIC in a computer, but is unsure about the expansion slots available. Which two types of wireless NICs should the technician have available? (Choose two.)
PCIe
AGP
SCSI
PCI
SATA
20
What is the first step that a technician should take before physically opening a computer case?
Verify the room temperature.
Consult the website of the manufacturer.
Check the ventilation in the room.
Provide small containers to collect small screws.