LINUX BASICS
HARDWARE BASICS
TROUBLESHOOTING OVERVIEW
CASES AND FORM FACTORS
POWER SUPPLIES
100
Bash
What would you enter at the command prompt to a start a new Bourne-again shell (bash) session?
100
Speaker
You are looking for at a female TRS connector on the computer. Which device uses this connector?
100
Identify the problem
You are responsible for managing client workstations for your company. A frantic user calls you one morning exclaiming that "nothing is working" What should you do first in your troubleshooting strategy?
100
Micro-ATX slim tower
You want to build a computer that can stand upright on a desk and takes up the least amount of space possible. What type of case should you select?
100
Power supply
Which of the following components converts to AC to DC?
200
pwd
What would you enter at the command prompt on a Linux system to display the present working directory?
200
Parallel port
You are connecting an older, dot matrix printer to a computer. The printers cable is a D-shaped connector with 25 pins. Which port type does the printer connect to?
200
Document the solution
A user repots that the projector in the conference room has display issues when it is connected to his laptop. After identifying the cause and completely resolving the issue, the projector displays the images perfectly both on his laptop and projector. What should you do next in your troubleshooting strategy?
200
NLX
Which of the following form factors does not have expansion slots on the motherboard, but instead uses a riser card for expansion cards?
200
Dual rail
Which power supply feature helps prevent circuit overloads by balancing the current flow?
300
ls
What would you enter at the command prompt on a Linux system to display a list of files and subdirectories that exist within the present working directory?
300
D-shaped with 15 pins
You are providing telephone support for a user who is trying to connect a computer to a projector. You know that the projector only has a VGA port. How would you describe the connector that the user should look for?
300
Test the solution
A user reports that her monitor has stopped working. While troubleshooting the issue, you discover a bad video card in the system. You replace the card and connect the monitor cable to the card. What should you do next in your troubleshooting strategy?
300
Mini-ITX
Which motherboard factor allows for low-consumption power supplies?
300
Watt rating
You need to ensure that your power supply can support all of the new devices. Which power supply rating is used to determine this?
400
man ifconfig
You want to know more about the usage, command syntax, and the options available with the Linux ifconfig command. What would you enter at the command prompt to display this information about ifconfig?
400
Processing
Which computer function takes data through a series of procedures as defined by a set of instructions?
400
determine if escalation is needed
A user reports that he cannot access several network files. After some investigation, you determine that the problem is with a network server. What should you do next?
400
ATX mid-tower
You need to purchase a case that meets the following criteria: - Compatible with most form factors - At least to external and internal bays - Good balance of size and space Which case do you purchase?
400
Toggle the voltage switch on the power supply to the different voltage.
Your computer was previously configured to receive 110 V AC, but the electricity in London uses 230 V AC. What would allow your computer to run on 230 V AC?
500
ifconfig
What would you enter at the command prompt on a Linux system to display the IP addresses and the subnet mask assigned to each network interface on a Linux system?
500
DVI
You are helping a customer over the phone who needs to connect a monitor that uses digital interface. What port should you instruct her to look for on the back of her PC?
500
Create an action plan
A user reports that she cant turn her computer on. After some investigation, you find that the power supply is malfunctioning. What should you do next?
500
Use the mini-ATX motherboard in the ATX case.
You discover that the motherboard uses a mini-ATX form factor. Your current case is an ATX mid-tower with a standard ATX motherboard inside. What should you do?
500
Nothing, the power supply is working normally.
You testing the power supply in a PC system by measuring the voltage available on the 4-pin Molex connector. The voltage on the red wire is +5.1 volts. What should you do?