WGU D322 Introduction to Information Technology |
Actual Exam 2026/2027 | Complete Exam-Style Questions
with Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
Computing Fundamentals and Hardware
Q1: A user is building a custom desktop PC and needs a component responsible for
executing instructions and performing the primary calculations for the system. Which
component should they select?
A. Random Access Memory (RAM)
B. Central Processing Unit (CPU) [CORRECT]
C. Solid State Drive (SSD)
D. Power Supply Unit (PSU)
Correct Answer: B
Rationale: This choice is correct because the CPU acts as the brain of the computer,
fetching, decoding, and executing the instructions that drive all software operations.
Q2: A student complains that their laptop runs slowly when they have a web browser, a
word processor, and a spreadsheet open simultaneously, but runs fine when only one
application is open. Which hardware component is most likely the bottleneck in this
scenario?
A. The graphics processing unit (GPU)
B. The hard disk drive (HDD)
C. Random Access Memory (RAM) [CORRECT]
D. The motherboard chipset
Correct Answer: C
Rationale: The best answer is RAM, as it temporarily holds the data for all actively running
applications; when multiple programs are open, insufficient RAM forces the system to use
slower virtual memory on the storage drive.
Q3: Which of the following components serves as the main circuit board that physically
connects and allows communication between the CPU, RAM, storage drives, and peripheral
devices?
A. The motherboard [CORRECT]
B. The heat sink
C. The CMOS battery
D. The network interface card
Correct Answer: A
Rationale: This matches the principle that the motherboard is the foundational backbone of
a computer, providing the electrical and logical connections necessary for all internal
components to communicate.
, Q4: An office worker needs to digitize a stack of physical, signed contracts to store them
electronically. Which peripheral device is most appropriate for this specific task?
A. A dot matrix printer
B. A flatbed scanner [CORRECT]
C. A barcode reader
D. A plotter
Correct Answer: B
Rationale: This choice is correct because a flatbed scanner is specifically designed to capture
high-quality digital images of physical documents, making it the standard tool for digitizing
paper records.
Q5: You are reviewing a workstation specification sheet for a new hire: Processor: Intel Core
i5, RAM: 8GB DDR4, Storage: 256GB NVMe SSD, Graphics: Integrated. The user complains
the system becomes completely unresponsive when running multiple virtual machines.
Based on this data snippet, what is the most likely hardware bottleneck?
A. The NVMe SSD is too small to hold the VM files.
B. The integrated graphics cannot render the VM interfaces.
C. The 8GB of RAM is insufficient to allocate memory to multiple concurrent VMs.
[CORRECT]
D. The Core i5 processor lacks the necessary instruction sets for virtualization.
Correct Answer: C
Rationale: This aligns with the principle that virtual machines require dedicated slices of
system memory to operate; 8GB is generally inadequate for a host OS plus multiple active
VMs, leading to severe performance degradation.
Q6: A company is upgrading its older desktop computers to improve boot times and overall
system responsiveness. Replacing the existing mechanical hard drives with which of the
following will yield the most noticeable performance improvement for this specific goal?
A. A higher wattage power supply
B. A larger capacity mechanical hard drive
C. A Solid State Drive (SSD) [CORRECT]
D. An external USB flash drive
Correct Answer: C
Rationale: The best answer is an SSD, as it has no moving parts and offers significantly faster
read/write speeds compared to traditional mechanical hard drives, drastically reducing boot
and application load times.
Q7: A photographer needs to transfer large, high-resolution raw image files from their
camera to a laptop as quickly as possible. Which port technology should they look for to
ensure the fastest data transfer rates?
A. Thunderbolt 4 [CORRECT]
B. USB 2.0
C. VGA
D. Bluetooth 5.0
Correct Answer: A
Actual Exam 2026/2027 | Complete Exam-Style Questions
with Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
Computing Fundamentals and Hardware
Q1: A user is building a custom desktop PC and needs a component responsible for
executing instructions and performing the primary calculations for the system. Which
component should they select?
A. Random Access Memory (RAM)
B. Central Processing Unit (CPU) [CORRECT]
C. Solid State Drive (SSD)
D. Power Supply Unit (PSU)
Correct Answer: B
Rationale: This choice is correct because the CPU acts as the brain of the computer,
fetching, decoding, and executing the instructions that drive all software operations.
Q2: A student complains that their laptop runs slowly when they have a web browser, a
word processor, and a spreadsheet open simultaneously, but runs fine when only one
application is open. Which hardware component is most likely the bottleneck in this
scenario?
A. The graphics processing unit (GPU)
B. The hard disk drive (HDD)
C. Random Access Memory (RAM) [CORRECT]
D. The motherboard chipset
Correct Answer: C
Rationale: The best answer is RAM, as it temporarily holds the data for all actively running
applications; when multiple programs are open, insufficient RAM forces the system to use
slower virtual memory on the storage drive.
Q3: Which of the following components serves as the main circuit board that physically
connects and allows communication between the CPU, RAM, storage drives, and peripheral
devices?
A. The motherboard [CORRECT]
B. The heat sink
C. The CMOS battery
D. The network interface card
Correct Answer: A
Rationale: This matches the principle that the motherboard is the foundational backbone of
a computer, providing the electrical and logical connections necessary for all internal
components to communicate.
, Q4: An office worker needs to digitize a stack of physical, signed contracts to store them
electronically. Which peripheral device is most appropriate for this specific task?
A. A dot matrix printer
B. A flatbed scanner [CORRECT]
C. A barcode reader
D. A plotter
Correct Answer: B
Rationale: This choice is correct because a flatbed scanner is specifically designed to capture
high-quality digital images of physical documents, making it the standard tool for digitizing
paper records.
Q5: You are reviewing a workstation specification sheet for a new hire: Processor: Intel Core
i5, RAM: 8GB DDR4, Storage: 256GB NVMe SSD, Graphics: Integrated. The user complains
the system becomes completely unresponsive when running multiple virtual machines.
Based on this data snippet, what is the most likely hardware bottleneck?
A. The NVMe SSD is too small to hold the VM files.
B. The integrated graphics cannot render the VM interfaces.
C. The 8GB of RAM is insufficient to allocate memory to multiple concurrent VMs.
[CORRECT]
D. The Core i5 processor lacks the necessary instruction sets for virtualization.
Correct Answer: C
Rationale: This aligns with the principle that virtual machines require dedicated slices of
system memory to operate; 8GB is generally inadequate for a host OS plus multiple active
VMs, leading to severe performance degradation.
Q6: A company is upgrading its older desktop computers to improve boot times and overall
system responsiveness. Replacing the existing mechanical hard drives with which of the
following will yield the most noticeable performance improvement for this specific goal?
A. A higher wattage power supply
B. A larger capacity mechanical hard drive
C. A Solid State Drive (SSD) [CORRECT]
D. An external USB flash drive
Correct Answer: C
Rationale: The best answer is an SSD, as it has no moving parts and offers significantly faster
read/write speeds compared to traditional mechanical hard drives, drastically reducing boot
and application load times.
Q7: A photographer needs to transfer large, high-resolution raw image files from their
camera to a laptop as quickly as possible. Which port technology should they look for to
ensure the fastest data transfer rates?
A. Thunderbolt 4 [CORRECT]
B. USB 2.0
C. VGA
D. Bluetooth 5.0
Correct Answer: A
