WGU C393: 2025/2026 Exam Questions
with Detailed Verified Answers (100%
Correct Answers) | Already Graded A+
What is the process of finding the cause of a problem as well as its
solution? - 🧠 ANSWER ✔✔Troubleshooting
What is the first step of the troubleshooting model? - 🧠 ANSWER
✔✔Identify the problem.
What is the last step of the troubleshooting model? - 🧠 ANSWER
✔✔Document the findings, actions taken and the outcome.
What should you do when the fan on the power supply becomes damaged?
- 🧠 ANSWER ✔✔Replace the power supply
What will MOST likely happen if a keyboard is not cleaned for a long time?
- 🧠 ANSWER ✔✔Keys may stop working or stick
What is the first step should you take to troubleshoot a computer that is
behaving erratically? - 🧠 ANSWER ✔✔Reboot the computer
1
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,What will be the result of removing the CMOS battery from the
motherboard? - 🧠 ANSWER ✔✔The BIOS settings, including the BIOS
password, will be reset to defaults
What should you use while installing a new CPU to ensure that the
computer does not restart due to overheating CPU? - 🧠 ANSWER ✔✔Use
thermal compound, a heat sink and a CPU fan
What would happen if thermal compound is not used on the processor? - 🧠
ANSWER ✔✔The process will be damaged due to overheating
What is the recommended method to clean dust from inside the computer?
- 🧠 ANSWER ✔✔Use compressed air
What two things should you check in a computer when it gives a single
beep during POST, but there is no display? - 🧠 ANSWER ✔✔You should
check the power to the monitor and check whether the monitor cable is
connected to the computer
Which term is used for replacing the firmwire within BIOS? - 🧠 ANSWER
✔✔flashing the BIOS
2
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,What is the most common symptom of a system that has insufficient
random access memory (RAM) and little free disk space? - 🧠 ANSWER
✔✔Poor system performance
If a computer system is not displaying any lights and has no apparent signs
of activity, what is the MOST likely source of the problem? - 🧠 ANSWER
✔✔the power supply
Which type of memory error normally occurs once and disappears after the
computer is rebooted? - 🧠 ANSWER ✔✔soft memory error
After adding a working power supply and working processor to your
computer, why would the computer make no sound and produce no lights
when turned on? - 🧠 ANSWER ✔✔motherboard failure
A computer's time clock is constantly losing time. What could be the
primary reason for this? - 🧠 ANSWER ✔✔The CMOS battery requires a
replacement
What are the two methods to determine the type of RAM appropriate for
your computer while upgrading or replacing the RAM in the computer? - 🧠
ANSWER ✔✔Inspect physical RAM already installed in the computer or
consult the motherboard manufacturer's catalog or Web site
3
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Which hardware tool assists in removing motherboard, standoffs, jumpers
and stubbern cable connectors? - 🧠 ANSWER ✔✔needle-nosed pliers
Before performing any major hardware changes on a computer, what
should you do FIRST regarding data stored in that computer? - 🧠 ANSWER
✔✔Back up the data
Why is the speed of the existing processor important if you plan to install a
second processor? - 🧠 ANSWER ✔✔The two processors can only operate
at the speed of the lowest speed processor
Which card can be directly connected to the motherboard on a PCI or ISA
slot and have several slots to hold additional cards that work in parallel with
the motherboard? - 🧠 ANSWER ✔✔riser cards
What is the purpose of Hyper-Threading (HT) technology? - 🧠 ANSWER
✔✔It allows a CPU to execute multiple instructions at the same time.
What is the primary purpose of a Graphics Processing Unit (GPU)? - 🧠
ANSWER ✔✔processing video and graphics
Which motherboard component is used to hold multiple I/O cards in a
computer - 🧠 ANSWER ✔✔riser cards
4
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
with Detailed Verified Answers (100%
Correct Answers) | Already Graded A+
What is the process of finding the cause of a problem as well as its
solution? - 🧠 ANSWER ✔✔Troubleshooting
What is the first step of the troubleshooting model? - 🧠 ANSWER
✔✔Identify the problem.
What is the last step of the troubleshooting model? - 🧠 ANSWER
✔✔Document the findings, actions taken and the outcome.
What should you do when the fan on the power supply becomes damaged?
- 🧠 ANSWER ✔✔Replace the power supply
What will MOST likely happen if a keyboard is not cleaned for a long time?
- 🧠 ANSWER ✔✔Keys may stop working or stick
What is the first step should you take to troubleshoot a computer that is
behaving erratically? - 🧠 ANSWER ✔✔Reboot the computer
1
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,What will be the result of removing the CMOS battery from the
motherboard? - 🧠 ANSWER ✔✔The BIOS settings, including the BIOS
password, will be reset to defaults
What should you use while installing a new CPU to ensure that the
computer does not restart due to overheating CPU? - 🧠 ANSWER ✔✔Use
thermal compound, a heat sink and a CPU fan
What would happen if thermal compound is not used on the processor? - 🧠
ANSWER ✔✔The process will be damaged due to overheating
What is the recommended method to clean dust from inside the computer?
- 🧠 ANSWER ✔✔Use compressed air
What two things should you check in a computer when it gives a single
beep during POST, but there is no display? - 🧠 ANSWER ✔✔You should
check the power to the monitor and check whether the monitor cable is
connected to the computer
Which term is used for replacing the firmwire within BIOS? - 🧠 ANSWER
✔✔flashing the BIOS
2
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,What is the most common symptom of a system that has insufficient
random access memory (RAM) and little free disk space? - 🧠 ANSWER
✔✔Poor system performance
If a computer system is not displaying any lights and has no apparent signs
of activity, what is the MOST likely source of the problem? - 🧠 ANSWER
✔✔the power supply
Which type of memory error normally occurs once and disappears after the
computer is rebooted? - 🧠 ANSWER ✔✔soft memory error
After adding a working power supply and working processor to your
computer, why would the computer make no sound and produce no lights
when turned on? - 🧠 ANSWER ✔✔motherboard failure
A computer's time clock is constantly losing time. What could be the
primary reason for this? - 🧠 ANSWER ✔✔The CMOS battery requires a
replacement
What are the two methods to determine the type of RAM appropriate for
your computer while upgrading or replacing the RAM in the computer? - 🧠
ANSWER ✔✔Inspect physical RAM already installed in the computer or
consult the motherboard manufacturer's catalog or Web site
3
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Which hardware tool assists in removing motherboard, standoffs, jumpers
and stubbern cable connectors? - 🧠 ANSWER ✔✔needle-nosed pliers
Before performing any major hardware changes on a computer, what
should you do FIRST regarding data stored in that computer? - 🧠 ANSWER
✔✔Back up the data
Why is the speed of the existing processor important if you plan to install a
second processor? - 🧠 ANSWER ✔✔The two processors can only operate
at the speed of the lowest speed processor
Which card can be directly connected to the motherboard on a PCI or ISA
slot and have several slots to hold additional cards that work in parallel with
the motherboard? - 🧠 ANSWER ✔✔riser cards
What is the purpose of Hyper-Threading (HT) technology? - 🧠 ANSWER
✔✔It allows a CPU to execute multiple instructions at the same time.
What is the primary purpose of a Graphics Processing Unit (GPU)? - 🧠
ANSWER ✔✔processing video and graphics
Which motherboard component is used to hold multiple I/O cards in a
computer - 🧠 ANSWER ✔✔riser cards
4
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
