ITN 107 CH. 1-3 EXAM REVIEW UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Question:
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
Question:
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.
Question:
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.
Question:
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.
,Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
QUESTIONS AND CORRECT ANSWERS
Question:
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
Question:
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.
Question:
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.
Question:
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.
,Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
Question:
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.
