ITN 107 CH. 1-3 Exam Review Questions and Answers
What is the second step in opening the case of a working computer?
Power down the system and unplug it.
- After backing up important data, you should power down the system and unplug it
A user called to inform you that the laptop she pur...
what is the second step in opening the case of a w
a user called to inform you that the laptop she pu
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ITN 107 CH. 1-3 Exam Review Questions
and Answers
What is the second step in opening the case of a working computer? - answer Power
down the system and unplug it.
- After backing up important data, you should power down the system and unplug it
A user called to inform you that the laptop she purchased yesterday is malfunctioning
and will not connect to her wireless network. You personally checked to verify that the
wireless worked properly before the user left your office. The user states she rebooted
the computer several times but the problem still persists
Which of the following is the first step you should take to assist the user in resolving this
issue? - answer Have the user press the appropriate function key combination to
enable the wireless radio and then attempt to connect to the wireless network.
- Modern laptop computers provide an easy method of toggling the Wi-Fi, GPS, and
cellular radios on and off by means of the keyboard function keys. For example, to
toggle the Wi-Fi radio on/off, the user may be required to depress and hold the Fn key
and then press F5.
When is it okay to touch the inside of a computer that is turned on? - answer When
using a multimeter to measure voltage output
- Using a multimeter to measure voltage output is the only exception to touching the
inside of a computer that is turned on. Even then, you should be very careful to avoid
shock.
What connector has 4 pins, is used for older IDE drives and some SATA drives, and
can provide +5 V and +12 V power outputs? - answer Molex connector
- The Molex connector is a 4-pin connector used for older IDE drives, some newer
SATA drives, and extra power to video cards. It can provide +5 V and +12 V power.
What tool can help discover and report computer errors and conflicts that occur when
you first turn on a computer and before the operating system is launched. - answer
POST card
- Power On Self Test or POST is a diagnostic program built into a computer to test the
hardware components before the computer boots up. A POST card is a specialized card
that helps identify and report computer errors and conflicts that occur after you first turn
,on a computer, but before the operating system launches. Results of the test are
displayed as a coded number on the card for reference.
What are two resources that may be useful in disassembling a laptop computer? -
answer User manual
- User manuals may provide guidance on replacing or removing components without full
disassembly of the case.
Service manual
- Since laptop computers are unique to manufacturers and models, a service manual
will be useful for disassembly.
A technician needs to service a laptop computer that is experiencing an intermittent
problem with the display.Which of the following will be most effective at helping the
technician complete the work in a timely and efficient manner? (Select two.) - answer
Document and label the location of the screws and cables before removing them.
- While most desktop computers contain only one or two types of screws, a laptop may
have a variety of screws and washers in various sizes and lengths. It is imperative that
a technician document and label screws and cables before removing them. Inserting a
screw that is too long may penetrate a cable or circuit board and cause damage.
Inserting a screw that is the wrong size can also strip the threads, causing the correct-
sized screw not to tighten properly. Documenting and labeling locations will assist in
reassembling the unit.
Organize and place all parts and screws and in one place.
- After documenting and labeling the location of the parts and screws, the technician
needs to organize them and keep them in one place. Doing so will assist in
reassembling the unit.
What type(s) of port transmits both digital audio and digital video with a single
connector? Select all that apply. - answer DisplayPort
- DisplayPort transmits both digital video and audio, but not analog transmissions.
DisplayPorts are slowly replacing older ports, such as VGA and DVI ports.
HDMI
- HDMI or High-Definition Multimedia Interface ports transmit digital video and audio, but
not analog transmissions. HDMI connections are commonly found in home theater
equipment and as ports on both laptop and desktop computers.
, When handling a motherboard, cards, or drive, which statement is NOT accurate? -
answer You should not hold expansion cards by the edges.
- Holding expansion cards by the edges is the correct method of handling.
The original P1 connector had 20 pins, why did the development of PCIe induce the
adoption of a 24-pin P1 connector? - answer PCIe slots are faster than the previous
generation and requires more power
- PCI Express (PCIe) slots are faster than PCI and require additional power. The 24-pin
or 20+4-pin P1 connector provide +12 volts, +5 volts, and +3.3 volts of output.
A technician is building a custom gaming computer for a customer. In what order should
the technician install the main components? - answer power supply, drives,
motherboard, cards
- Since the motherboard and processor are the most expensive components, if possible
it is best to install the motherboard just before installing the expansion cards to prevent
damage. For example, you would not want to drop a disk drive or power supply on the
motherboard while installing those components.
A network technician is on a service call at a remote residential location. He forgot to
take some Ethernet cables and needs to make one.
What type of connector will he need on both ends of the cable? - answer RJ-45
- A RJ-45 connector connects a network cable to a network port.
You are helping a friend build a computer with a modern motherboard that is compatible
with the ATX form factor. What type of power supply should you use? - answer One
with a 24-pin power connector
- The 24-pin P1 connector is the main motherboard power connector used today.
What two different types of firmware may be used on motherboards? - answer BIOS
- Basic Input/Output System or BIOS is the older firmware that is responsible for
managing essential devices (such as the keyboard, mouse, hard drive, and monitor)
before the OS launches, starting the computer, and managing motherboard settings.
UEFI
- Unified Extensible Firmware Interface or UEFI is the newer firmware that is
responsible for managing essential devices (such as the keyboard, mouse, hard drive,
and monitor) before the OS launches, starting the computer, and managing
motherboard settings.
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