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257 Operating SYSTEMS > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

Molly, an end user, connects an external monitor, external keyboard and mouse, and a wired network cable to her laptop while working in the office. She leaves the office frequently to meet with customers and takes the laptop with her. Disconnecting and reconnecting these external connections has become inconvenient.

What devices will allow the user to disconnect and reconnect the laptop to the external connections with the least amount
of effort? Select two

a. USB to RJ-45 dongle
b. ZIF connector
c. Docking station
d. Expansion card
e. Port replicator

A

E. Port Replicator

C. Docking Station

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2
Q

A technician has determined that a laptop keyboard will need to be removed in order to replace the laptop’s CPU cooling fan.

Which of the following steps
will most likely be required before the technician can remove the keyboard from the laptop? Select TWO

a. The technician will need to remove the display assembly and system board.
b. The keyboard cable(s) will need to be disconnected from the ZIF socket(s).
c. The keyboard cable will need to be disconnected from the mini-PCIe slot.
d. The keyboard bezel will need to be removed.
e. The keyboard backlight will need to be toggled off by using the appropriate Fn keys.

A

B. The keyboard cable(s) will need to be disconnected from the ZIF socket(s).
D. The keyboard bezel will need to be removed.

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3
Q

A user called to inform you that the laptop she purchased yesterday is malfunctioning and will not connect to the 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

a. Instruct the user on how to reseat the internal mini-PCIe wireless adapter and try to connect to the wireless network.
b. Ask the user to turn on the laptop’s airplane mode and attempt to reconnect to the wireless network.
c. Inform the user she will need to return the laptop so you can replace the internal Wi-Fi card and verify wireless functionality.
d. Have the user press the appropriate function key combination to enable the wireless radio and then attempt to connect to the wireless network.
A

D. Have the user press the appropriate function key combination to enable the wireless radio and then attempt to connect to the wireless network.

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4
Q

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

a. Organize and place all parts and screws and in one place.
b. Charge the laptop battery pack so it is ready to return to the customer with a full charge.
c. Provide the customer with a laptop to use while the failing unit is being repaired.
d. Document and label the location of the screws and cables before removing them.
e. Compare the system board display connections with a properly functioning laptop.

A

A. Organize and place all parts and screws and in one place.

D. Document and label the location of the screws and cables before removing them.

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5
Q

You are troubleshooting a laptop with multiple sticking keys that result in misspelled words while the user types. Other than several sticking keys, the laptop appears to be functioning properly. You have cleaned the keyboard with compressed air, but the problem persists. After removing one of the key tops, it becomes apparent that a liquid was spilled into the keyboard.

Which of the following is the next step in resolving the issue of sticking keys?

a. Replace the laptop system board and reseat all connections.
b. Clean the keyboard keys with a contact cleaner.
c. Replace the keyboard with a compatible keyboard.
d. Disconnect and reseat the keyboard ribbon cable.
A

B. Clean the keyboard keys with a contact cleaner.

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6
Q

Sometimes an expansion board may have an extra PCIe power connector. This connector comes in what two different pin configurations?

a. 8-pin
b. 6-pin
c. 4-pin
d. 8+1-pin
A

a. 8-pin

b. 6-pin

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7
Q

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?

a. Molex connector 
b. PCIe connector
c. P1 connector
d. SATA connector
A

A. Molex connector

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8
Q

When is it okay to touch the inside of a computer that is turned on?

a. When reassembling the computer
b. When using a multimeter to measure voltage output
c. When a qualified electronics expert or electrician is present
d. When disassembling the computer
A

b. When using a multimeter to measure voltage output

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9
Q

What two different types of firmware may be used on motherboards?

A

BIOS and UEFI

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10
Q

Transmits digital video and audio, and is slowly replacing VGA and DVI Ports on personal computers.

A

Display Port

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11
Q

a type of memory slot found on a motherboard

A

DIMM

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12
Q

draws heat from the CPU and pipes it to a fan, which then blows heat out of the case

A

heat sink

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13
Q

a slot used for expansion cards or video cards on a motherboard

A

PCI Express (PCIe)

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14
Q

a series of tests performed by the startup UEFI/BIOS when you first turn on a computer

A

POST

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15
Q

a smaller type of memory slot typically used for laptops

A

SO-DIMM

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16
Q

a computer is said to be in this mode when all wireless technologies are turned off

A

Airplane mode

17
Q

a short-range wireless technology used to connect two devices in a small personal network

A

bluetooth

18
Q

also called the processor, or microprocessor, does most of the processing of data and instructions

A

Central processing unit (CPU)

19
Q

reduces the total cost of a system by reducing the number of expansion slots on the motherboard,
reducing the power supplied to the board, and allowing for a smaller case size

A

micro-atx

20
Q

What is the connector called on a network cable that connects to an Ethernet port?

A

RJ-45

21
Q

What is the component called that usually has a dual-voltage selector switch and has cables that connect to the motherboard and internal components?

A

PSU

22
Q

How many pins are used in a serial port?

A

9

23
Q

—–What type(s) of port transmits both digital audio and digital video with a single connector? Select all

A

DisplayPort

24
Q

What are two resources that may be useful in disassembling a laptop computer?

A

Service manual

user manual

25
Q

What two devices in a computer should be considered “black boxes,” and should never be opened due to risks involving charged capacitors?

A

Monitor

Power supply

26
Q

What acronym is another name for static electricity, which can damage chips and destroy motherboards?

A

ESD (electro static discharge)

27
Q

When handling a motherboard, cards, or drive, which statement is NOT accurate?

A

You should not hold expansion cards by the edges.

28
Q

List four components found on a motherboard

A

heatsink, RAM, CPU, expansion slots

29
Q

What is the very first step that should be taken when performing work with a computer?

A

You should back up any important data

30
Q

How many pins are in the power supply connector that is typically used on most motherboards today?

A

24-pin

31
Q

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.

A

POST Card

32
Q

Which statement is NOT a good practice when working inside a computer case?

A

Be sure to hold expansion cards by the edge connectors

33
Q

Which statement is NOT true regarding motherboards?

A

Has a heat sink on the PCIe slot

34
Q

What is the second step in opening the case of a working computer?

A

power down the system and unplug it

257 Operating SYSTEMS (1 decks)

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