Computer Science - Exam 1
How many pins are in the power supply connector that is typically used on most motherboards today?
● 24-pin
How many pins are used in a serial port?
● 9
What is the standard for computer expansion cards?
● PCIe
What are two resources that may be useful in disassembling a laptop computer?
● Service Manual ● User Manual
Which component may be considered a field replaceable unit or FRU?
● The LCD screen, power supply, hard drive, and motherboard.
When is it ok to touch the inside of a computer that is turned on?
● When using a multimeter to measure voltage output.
What is the very first step that should be taken when performing work with a computer?
● You should back up any important data.
When handling a motherboard, cards, or drive, which statement is not accurate?
● You should not hold expansion cards by the edges.
What is the smaller form factor of the ATX? Its smaller size and reduced expansion ports help reduce costs and power consumption.
● microATX
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?
●The keyboard cable(s) will need to be disconnected from the ZIF socket(s). ● The keyboard bezel will need to be removed.
Sometimes an expansion board may have an extra PCIe power connector. This connector comes in what two different pin configurations?
● 6-pin ● 8-pin
Which statement is not true regarding motherboards?
● A motherboard has a heat sink on the PCIe slots
What is used to turn off all wireless technologies resulting in no transmission or reception of wireless signals?
● Airplane Mode
What two different types of firmware may be used on motherboards?
● BIOS ● UEFI
Which statement is not a good practice when working inside a computer case?
● Be sure to hold the expansion cards by the edge connectors.
What is a short-range wireless technology used to connect two devices in a small personal network?
● Bluetooth
What performs most of the processing for data and instructions for the entire system?
● CPU (central processing unit)
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 keytops, 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.
What is the connector for memory found on a motherboard?
● DIMM
What transmits digital video and audio and is slowly replacing VGA and DVI ports on computers?
● DisplayPort
What type(s) of port transmit both digital audio and digital video with a single connector?
● DisplayPort ● HDMI
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?
● Document and label the location of the screws and cables before removing them. ● Organize and place all parts and screws in one place.
What acronym is another name for static electricity, which can damage chips and destroy motherboards?
● ESD
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?
● Have the user press the appropriate function key combination to enable the wireless radio and then attempt to connect to the wireless network.
What draws heat away from the CPU or other heat-sensitive components so that it can be dissipated quickly?
● Heat sink
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
What two devices should be considered "black boxes," and should never be opened due to risks involving charged capacitors?
● Monitor ● Power Supply
The diagnostic program built into a computer to test the hardware components before the computer boots up is called...
● POST
What tool can help discover and report computer errors and conflicts that occur when you first turn on a computer before the operating system is launched?
● POST Card
What is the component called that usually has a dual-voltage selector switch and has cables that connect to the motherboard and internal components?
● PSU
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?
● Port Replicator ● Docking Station
What is the second step in opening the case of a working computer?
● Power down the system and unplug it.
What is the connector called on a network cable that connects to an Ethernet port?
● RJ-45
What is a smaller connector for memory on laptops?
● SO-DIMM
