Mastering WGU D316 IT Foundations: Essential
Study Guide for 2025 Success
1. Which best describes the IDE?
Standard for connecting RAM to the motherboard
Modern interface for connecting graphics cards to the CPU
Older standard interface for connecting disk drives to
motherboard
Protocol for connecting printers to the computer
2. If a PC emits 2 short beeps after POST, what should a technician do next?
Test the keyboard for stuck keys.
Replace the power supply immediately.
Check the error code shown on the screen.
Inspect the motherboard for physical damage.
3. What is the definition of access time in computing?
The delay as the read/write head locates a particular track
position.
The amount of data that can be stored on a hard drive.
The time taken to boot up the operating system.
The speed at which data is transferred to the CPU.
4. In the figure, determine if there is a problem with this regulated power
supply and identify the problem.
, D1 and D2 are reversed. The power supply simply would not
function.
R1 value is too low, which would cause excessive base current and
instantly destroy TR1.
There is no problem with the circuit.
TR1 is shown as an NPN and must be changed to a PNP.
5. What voltage does an ATX12V P4 connector provide for
motherboards? 5V
3.3 V, 5 V
3.3 V
12 V
6. Your client wants to upgrade to a display capable of displaying Full
HD video content. Which of the following resolutions must the
display and video card support to make this possible?
1366×768
1920×1080
1280×720
1600×1200
,7. What devices were primarily connected using PS/2 serial ports?
External Hard Drives
Mice and
Keyboards Printers
and Scanners
Monitors and Speakers
8. The time it takes the read/write head to move across the disk to the
proper track is called ...
.. seek time.
.. traversal time.
.. transfer time.
.. rotational delay (or rotational latency).
.. access time.
9. Based on the graph shown here, what is the FWHM (full width at half
maximum)?
50 keV
7,500 cpm
, 680 keV
15,000 cpm
10. How many megawatt hours (MWh) per year of savings did the students
identify for computers at the Penn State Mueller Laboratory
Building?
12 MWh
10 MWh
30 MWh
120 MWh
11. Describe the role of a Storage Area Network (SAN) in a data
center environment.
A SAN is primarily used for connecting printers and other
peripherals to servers.
A SAN facilitates high-speed data transfer and storage
management for multiple servers, enhancing performance and
scalability.
A SAN acts as a firewall to protect data from unauthorized
access. A SAN is used to create virtual machines for cloud
computing.
Study Guide for 2025 Success
1. Which best describes the IDE?
Standard for connecting RAM to the motherboard
Modern interface for connecting graphics cards to the CPU
Older standard interface for connecting disk drives to
motherboard
Protocol for connecting printers to the computer
2. If a PC emits 2 short beeps after POST, what should a technician do next?
Test the keyboard for stuck keys.
Replace the power supply immediately.
Check the error code shown on the screen.
Inspect the motherboard for physical damage.
3. What is the definition of access time in computing?
The delay as the read/write head locates a particular track
position.
The amount of data that can be stored on a hard drive.
The time taken to boot up the operating system.
The speed at which data is transferred to the CPU.
4. In the figure, determine if there is a problem with this regulated power
supply and identify the problem.
, D1 and D2 are reversed. The power supply simply would not
function.
R1 value is too low, which would cause excessive base current and
instantly destroy TR1.
There is no problem with the circuit.
TR1 is shown as an NPN and must be changed to a PNP.
5. What voltage does an ATX12V P4 connector provide for
motherboards? 5V
3.3 V, 5 V
3.3 V
12 V
6. Your client wants to upgrade to a display capable of displaying Full
HD video content. Which of the following resolutions must the
display and video card support to make this possible?
1366×768
1920×1080
1280×720
1600×1200
,7. What devices were primarily connected using PS/2 serial ports?
External Hard Drives
Mice and
Keyboards Printers
and Scanners
Monitors and Speakers
8. The time it takes the read/write head to move across the disk to the
proper track is called ...
.. seek time.
.. traversal time.
.. transfer time.
.. rotational delay (or rotational latency).
.. access time.
9. Based on the graph shown here, what is the FWHM (full width at half
maximum)?
50 keV
7,500 cpm
, 680 keV
15,000 cpm
10. How many megawatt hours (MWh) per year of savings did the students
identify for computers at the Penn State Mueller Laboratory
Building?
12 MWh
10 MWh
30 MWh
120 MWh
11. Describe the role of a Storage Area Network (SAN) in a data
center environment.
A SAN is primarily used for connecting printers and other
peripherals to servers.
A SAN facilitates high-speed data transfer and storage
management for multiple servers, enhancing performance and
scalability.
A SAN acts as a firewall to protect data from unauthorized
access. A SAN is used to create virtual machines for cloud
computing.
