Ch. 1 - Computer Systems Management

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

You should back up any important data

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

6-pin and 8-pin

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?

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

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.)

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

and

The keyboard bezel will need to be removed.

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

Power supply unit (PSU)

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).

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

and

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

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

BIOS

UEFI

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.

Which of the following devices will allow the user to disconnect and reconnect the laptop to the external connections with the least amount of effort? (Select TWO).

Port replicator

Docking station

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?

Molex connector

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

24-pin

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

be sure to hold expansion cards by the edge connectors

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

ESD

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

RJ-45 connector

List four components found on a motherboard.

Expansion slots, CPU socket, chipsets, heat sink

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

User manual and Service manual

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?

Clean the keyboard keys with a contact cleaner.

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

When using a multimeter to measure voltage output

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.

POST card

How many pins are used in a serial port?

9-pin

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

DisplayPort & HDMI

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

power down the system and unplug it

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

you should not hold expansion cards by the edges

Which statement is NOT true regarding motherboards?

has a heat sink on the PCIe slots

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

monitor

power supply

transmits digital video and audio and is slowly replacing VGA and DVI

Display Port

a type of memory slot found on a motherboard

DIMM (dual inline memory module)

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

Heat sink

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

PCIe (Peripheral Component Interconnect Express)

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

POST

a smaller type of memory slot typically used for laptops

SO-DIMM (small outline dual inline memory module)

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

airplane mode

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

Bluetooth

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

for the entire system

CPU

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

micro-ATX