3.4.5 Practice Questions
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3.4.5 Practice Questions
Candidate:
Joseph Vincent (jvince13)
Date:
10/17/2023 7:21:27 pm •
Time Spent:
01:19
Score: 100%
Passing Score: 80%
Question 1:
Correct
When booting your workstation, you hear a series of audible beeps, and the system locks
up.
What is the FIRST step you should take when troubleshooting this issue?
Disconnect non-essential peripherals and try
to reboot.
Replace the motherboard battery.
Check for dust buildup inside the case.
Check the motherboard documentation for
POST errors.
Explanation
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Every time a workstation boots, it runs a Power-On Self Test (POST) to make sure that all of
the basic hardware in the system is present and functioning correctly. If a problem is
identi
fi
ed during POST, an error is generated, which can be a series of beeps. You need to
check the motherboard documentation to interpret what the series of beeps represents.
If the motherboard battery fails, the system clock can lose time, or the BIOS/UEFI settings
may reset to their defaults. However, this would not cause the series of beeps you are
hearing when the system boots.
Dust buildup can cause overheating and other symptoms. However, this is not related to
the POST error beeps you are hearing when the system boots.
Disconnecting non-essential peripherals and then rebooting is a troubleshooting step for
resolving a Blue Screen of Death issue and is not related to POST error beeps.
References
3.4.1 Motherboard Troubleshooting
3.4.2 Motherboard Troubleshooting Facts
3.7.3 Memory Troubleshooting Facts
3.10.1 Processor Troubleshooting
3.10.2 Processor Troubleshooting Facts
q_mb_trb_audible_beep_resolution_pp7.question.fex
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Question 2:
Correct
While running a graphics editing program on your Windows workstation, a screen
suddenly pops up with an error message warning. You note the error message, but the
only way to continue working is to reboot your system.
What is this type of error screen called?
BSoD
SPoD
HVAC
POST
Explanation
You are experiencing a Blue Screen of Death (BSoD). This is a proprietary crash screen
o
ffi
cially known as a stop error or blue screen error. A BSoD happens when the Windows
OS encounters a fatal system error.
An SPoD (Spinning Pinwheel of Death) is the macOS equivalent of a BSoD. In this case, you
are running a Windows system, so an SPoD does not apply.
POST errors are encountered when booting your system (before running Windows) and do
not apply in this scenario.
HVAC stands for Heating, Ventilation, and Air Conditioning. This is the system that moves
air between indoor and outdoor areas in a room. HVAC does not directly apply to
computer systems.
References
3.4.2 Motherboard Troubleshooting Facts
q_mb_trb_bsod_description_pp7.question.fex
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Question 3:
Correct
A clicking noise in your computer has now evolved into a grinding noise. In addition, you
are beginning to see frequent error messages while running software, and your computer
occasionally freezes.
What is the MOST likely cause of these issues?
A failing internal fan
A failing RAM card
A failing hard drive
A failing video card
Explanation
A failing hard drive can cause a clicking noise, which eventually evolves into a grinding
noise. Other indicators are frequent error messages while running software and your
computer freezing (locking up).
While a failing fan can also cause a grinding noise, it does not start out as a clicking noise.
In addition, it probably won't cause application error message.
A failing video card can freeze your screen, but will not normally cause application errors
or produce a grinding noise.
While a failing RAM card may cause issues with applications, it will not produce any noises.
References
3.4.2 Motherboard Troubleshooting Facts
q_mb_trb_failing_hard_drive_pp7.question.fex
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Question 4:
Correct
When you turn on your workstation, you immediately hear a grinding noise coming from
inside the computer case.
Which of the following are the MOST likely causes of this noise?
A POST test error message.
A video card that is failing.
A connector that is not seated properly.
Dust buildup that needs to be cleaned.
An uneven case surface that causes fan blade
and motor noise.
Explanation
When you hear a buzzing or grinding noise, the most likely cause is your PC's fan. There
are many things that can cause your fan to make a grinding noise, including dust buildup
that needs to be cleaned and an uneven case surface.
A failing video card may result in a noise from the video card fan, but it will not be a
grinding noise.
A POST test error message can result in a series of beeps or a text message on the screen,
but this error does not cause an audible grinding noise.
A connector that is not seated properly can cause an electrical arch, resulting in smoke or
a burning smell. However, the connector will not produce a grinding noise.
References
3.4.2 Motherboard Troubleshooting Facts
q_mb_trb_grinding_noise_causes_pp7.question.fex
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Question 5:
Correct
When you try to boot your computer, it hangs after POST. When you access the UEFI setup
program, you see that the date is several years behind, and the time is set to 12:01 a.m.
Which of the following is the MOST likely cause of this behavior?
The UEFI
fi
rmware is corrupt.
A RAM module has become unseated from its
socket.
The motherboard battery has failed.
The UEFI
fi
rmware is outdated.
Explanation
The system time and date are managed by the real-time clock (RTC) in the BIOS/UEFI
fi
rmware. If the motherboard battery goes dead, the RTC reverts back to a default date
and time. In addition, the BIOS/UEFI may lose all of its con
fi
guration settings.
While outdated IEFI
fi
rmware might cause certain issues, in this scenario, the date and
time issues are most likely caused by a failed motherboard battery.
RAM modules have no direct impact on UEFI settings.
References
3.4.1 Motherboard Troubleshooting
3.4.2 Motherboard Troubleshooting Facts
q_mb_trb_mthbrd_batt_fail_pp7.question.fex
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Question 6:
Correct
Which pin on the power supply connector connects to the power good wire on the
motherboard in order to indicate an appropriate action for the motherboard if the power
disappears, quickly reappears, or does not appear at all?
Pin 6
Pin 2
Pin 5
Pin 8
Explanation
Pin 8 on the power supply connector connects to the power good wire on the
motherboard.
If power disappears from this wire, the motherboard shuts down.
If power quickly reappears on this wire, the system may attempt to come back on by
itself, resulting in continual reboots.
If power does not reappear on this wire, the system shuts o
ff
.
References
2.6.2 PC and Networking Tools Facts
3.4.1 Motherboard Troubleshooting
3.4.2 Motherboard Troubleshooting Facts
3.10.2 Processor Troubleshooting Facts
3.14.2 Power Supply Facts
q_mb_trb_pin_8_connector_pp7.question.fex
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Question 7:
Correct
An employee calls to complain that their computer is behaving erratically. Some days, it
functions correctly, and other days, it crashes frequently. Sometimes, the system won't
boot at all.
You open the system case and notice the following:
Two of the mounting screws are missing from the system hard disk drive.
The system uses memory modules from several di
ff
erent manufacturers with
mismatched capacities.
Several capacitors on the motherboard are bulging and have a brown liquid oozing from
them.
The chassis fan on the front of the case is oriented to blow air into the system.
What should you do?
Replace the motherboard.
Use additional screws to mount the hard disk
drive to the system case.
Replace the leaky capacitors on the
motherboard.
Reorient the chassis fan to draw air out of the
system case.
Replace the existing memory modules with
matching modules.
Explanation
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The motherboard in this scenario has distended capacitors. This is evidenced by their
bulging shape and the brown
fl
uid leaking from them. The best way to solve this issue is to
replace the entire motherboard.
The fan in this scenario is pushing air in the correct direction.
Installing matching memory modules may improve system performance, but this will not
remediate the system's instability problem.
Using additional mounting screws on the hard disk drive will not improve system stability.
Replacing individual leaking capacitors on the motherboard is extremely di
ffi
cult and could
further damage the motherboard.
References
3.4.1 Motherboard Troubleshooting
3.4.2 Motherboard Troubleshooting Facts
q_mb_trb_replace_mthbrd_pp7.question.fex
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Question 8:
Correct
When playing videos games or watching movies on your workstation, the screen
sometimes freezes and displays strange colors. You suspect that your video card is
causing the issues.
What is the BEST solution to resolve your display issues?
Check the video card fan.
Update the video card driver.
Replace the video card.
Check the video card connectors.
Explanation
The best remedy is to replace the video card because it will fail completely at some point.
While updating the video card driver may resolve the display issues for now, it is more
likely that your video card is failing. The best solution is to simply replace the video card.
If the video card has been working properly until now, it is highly unlikely that you have a
loose video card connector.
If you are not hearing any noise from the fan while it is spinning, it is highly unlikely that
the fan is the cause of the display issues.
References
3.4.2 Motherboard Troubleshooting Facts
3.7.1 Memory Troubleshooting
3.7.3 Memory Troubleshooting Facts
q_mb_trb_replace_video_card_pp7.question.fex
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Question 9:
Correct
After arriving at work, you turn on your computer to begin your day. Instantly, you see
smoke and smell a strange odor coming from the computer.
Which of the following would be the MOST important action to take
fi
rst?
Call the IT director.
Shut o
ff
the system immediately.
Open the computer case and look for dust
buildup.
Log in and check Event Viewer.
Explanation
If you see smoke or smell something burning, shut o
ff
the system immediately to prevent
further damage and the chance of a
fi
re hazard.
Event Viewer shows past system events and error messages, but this function would not
help in this scenario.
While calling the IT director might be your next step, your
fi
rst step should be to shut o
ff
the system.
While inspecting your computer, you should look for dust buildup on components and
clean them as necessary. However, inspecting for dust buildup is not the
fi
rst step you
should take in this scenario.
References
3.4.1 Motherboard Troubleshooting
3.4.2 Motherboard Troubleshooting Facts
q_mb_trb_shut_o
ff
_system_pp7.question.fex
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Question 10:
Correct
While performing data entry on your Windows 11 laptop, your screen suddenly goes black.
What can you do immediately to troubleshoot the issue without losing any data that you
have entered?
Press
Ctrl
+
Alt
+
Del
Press the
Windows
key
+
P
four times
Press
Ctrl
+
Shift
+
B
Press
F5
four times
Explanation
If your screen suddenly goes black, try using the
Windows
key
+
P
four times to switch
between the four di
ff
erent display modes to see if the black screen disappears.
Pressing
Ctrl
+
Shift
+
B
resets the video driver in Windows 10 and can be useful when
encountering a black screen. However, this is a Windows 11 laptop.
Pressing
Ctrl
+
Alt
+
Del
lets you terminate an application task or reboot the operating
system. However, in this scenario, you probably want to check the display
fi
rst before
terminating applications or rebooting the system.
Pressing
F5
refreshes the screen, which will probably not resolve your black screen issues.
In addition, pressing
F5
may cause the data entry software to close, causing you to lose
your data.
References
3.4.2 Motherboard Troubleshooting Facts
3.7.3 Memory Troubleshooting Facts
3.10.2 Processor Troubleshooting Facts
12.7.1 Common Laptop Issues
q_mb_trb_windows_key_p_pp7.question.fex
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5.
Consider the difference between tension and compression. We defined
mathematical expression for o, e, and v in tension. How are these expressions affected
when applied to compression?
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The figure above is a pin-joint frame with angle = 40° between members AF and AB. (Note that the diagram is not to scale).
Given that the reaction forces at the support A are given by RAx = 10kN and RAY = 30KN, calculate the forces in members AB and AF, denoted by FAB and FAP respectively.
Enter your answers in kilonewtons (kN) correct to 2 decimal places in the boxes below:
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PDE Lecture W09.pdf
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Question 1
The engine of a 3500-N car is generating a constant power of 50 hp (horsepower)
while the car is traveling up the slope with a constant speed. If the engine is
operating with an efficiency of € 0.8, determine the speed of the car. Neglect
drag and rolling resistance. Use g 9.81 m/s² and 1 hp = 745.7 W.
10
го
Question 2
A man pushes on a 60-N crate with a force F. The force is always directed downward at an angle of 30°
from the horizontal, as shown in the figure. The magnitude of the force is gradually increased until the crate
begins to slide. Determine the crate's initial acceleration once it starts to move. Assume the coefficient of
static friction is μ = 0.6, the coefficient of kinetic…
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