IT Essentials Semester 1 Final Review Questions & Answers
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Course
IT Essentials Semester 1
Institution
IT Essentials Semester 1
What is the function of the power supply?
to convert AC power into a lower voltage DC power
to convert AC power into a higher voltage DC power
to convert DC power into a lower voltage AC power
to convert DC power into a higher voltage AC power - ANSWERSto convert AC power into a lower voltage D...
IT Essentials Semester 1 Final Review
Questions & Answers
What is the function of the power supply?
to convert AC power into a lower voltage DC power
to convert AC power into a higher voltage DC power
to convert DC power into a lower voltage AC power
to convert DC power into a higher voltage AC power - ANSWERSto convert AC power
into a lower voltage DC power
Which two motherboard components connect to the Northbridge chipset? (Choose two.)
NIC
USB 2.0 devices
USB 3.0 devices
FireWire devices
RAM
video card - ANSWERSRAM
video card
What type of connector can be used to connect an internal hard drive to the
motherboard?
USB
SATA
eSATA
Thunderbolt - ANSWERSSATA
Refer to the exhibit. To what input device would the cables attach?
(one circular teal, one circular purple, one rectangle blue)
keyboard/mouse combo device
KVM switch
video distribution center
sound system - ANSWERSKVM switch
Which is the correct procedure to put out a fire with a fire extinguisher after the pin is
pulled?
Aim just above the flame, squeeze the lever, and sweep from side to side.
Aim at the base of the flame, squeeze the lever, and sweep from side to side.
Aim directly at the center of the flame, squeeze the lever, and sweep from side to side.
Aim at the base of the flame, squeeze the lever, and sweep from the base to the top of
the flame.
,Aim just above the flame, squeeze the lever, and sweep from the top to the base of the
flame - ANSWERSAim at the base of the flame, squeeze the lever, and sweep from
side to side.
Which three safety guidelines would be recommended for a technician working inside a
laser printer? (Choose three.)
Allow the hot area of the laser printer to cool.
Ensure that the printer has power attached and that there is a good ground.
Keep a fire extinguisher beside the laser printer while working inside it.
Remove jewelry and other accessories.
Secure loose clothing.
When removing the printer or heavy parts of the printer, be sure to bend at the waist to
lift. - ANSWERSAllow the hot area of the laser printer to cool.
Remove jewelry and other accessories.
Secure loose clothing.
A technician is reorganizing the parts cabinet and has found some thermal paste. When
would the technician use thermal paste?
when installing SSDs
when performing maintenance on mechanical drives
when installing CPUs
when troubleshooting memory problems - ANSWERSwhen installing CPUs
Which two types of expansion slots would be used by a wireless NIC in a computer
today? (Choose two.)
PCIe
AGP
PCI
DIMM
ISA - ANSWERSPCIe
PCI
Refer to the exhibit. What is the purpose of the device that is shown?
(silver metal box with small slots in it)
to connect multiple computers to a single keyboard and mouse
to read data from a memory card
to read or write data to discs
to connect various types of external hard drives - ANSWERSto read data from a
memory card
Refer to the exhibit. What is the motherboard component that is shown?
2x10 pin layout on mobo
front panel cable connectors
motherboard power connector
, PATA drive connector
SATA data and power connectors - ANSWERSfront panel cable connectors
Which solid-state storage technology allows a computer BIOS to be upgraded by
flashing?
SODIMM
ROM
SDRAM
EEPROM - ANSWERSEEPROM
Which two PC settings can be configured using the BIOS setup utility? (Choose two.)
POST
virtualization support
allocation of memory to applications
enabling device drivers
boot sequence - ANSWERSvirtualization support
boot squence
What type of device provides power to a computer and allows it to be safely shut down
in the event of a power loss?
surge suppressor
uninterruptible power supply
standby power supply
power inverter - ANSWERSuninterruptible power supply
Why do laptop computers use CPU throttling techniques?
to enhance the performance of the CPU
to reduce the heat that the CPU may generate
to ensure the CPU is running at its peak speed
to conserve the battery life by reducing the bus speed between the CPU and RAM -
ANSWERSto reduce the heat that the CPU may generate
Which two existing components must be compatible with the installation of a new
upgraded CPU? (Choose two.)
power supply
motherboard
hard drive
case
video card - ANSWERSpower supply
motherboard
What are three important considerations when installing a CPU on a motherboard that
has just been upgraded? (Choose three.)
Antistatic precautions are taken.
The CPU is correctly aligned and placed in the socket.
The CPU contacts are first cleaned with isopropyl alcohol.
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