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WGU D322 INTRODUCTION TO INFORMATION
TECHNOLOGY 2026/2027 | CompTIA ITF+ Aligned |
Objective Assessment | Already Passed | Questions &
Answers | Pass Guaranteed - A+ Graded
Section 1: IT Concepts & Terminology - Hardware Components (Q1-15)
Q1. Which hardware component is responsible for executing instructions and
performing calculations in a computer system?
A. Random Access Memory (RAM)
B. Central Processing Unit (CPU)
C. Solid State Drive (SSD)
D. Power Supply Unit (PSU)
B. Central Processing Unit (CPU) [CORRECT]
Rationale: The CPU is the primary processing component that executes program
instructions and performs arithmetic/logic operations. RAM (A) is volatile memory,
SSD (C) is storage, and PSU (D) provides power.
Correct Answer: B
Q2. A user needs to store large video files and wants the fastest possible read/write
speeds. Which storage technology is most appropriate?
A. Hard Disk Drive (HDD) with SATA interface
B. Solid State Drive (SSD) with NVMe interface
C. Optical drive (DVD-RW)
D. Magnetic tape backup
B. Solid State Drive (SSD) with NVMe interface [CORRECT]
Rationale: NVMe SSDs use PCIe lanes for significantly faster data transfer than SATA
SSDs or HDDs. Optical drives (C) and tape (D) are much slower and primarily used for
archival purposes.
Correct Answer: B
Q3. Which type of memory is volatile and loses its contents when power is removed?
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A. Read-Only Memory (ROM)
B. Solid State Drive (SSD)
C. Dynamic Random Access Memory (DRAM)
D. Hard Disk Drive (HDD)
C. Dynamic Random Access Memory (DRAM) [CORRECT]
Rationale: DRAM is volatile memory used as system RAM; it requires constant power
to retain data. ROM (A), SSD (B), and HDD (D) are non-volatile storage that persists
without power.
Correct Answer: C
Q4. A laptop requires a smaller form factor memory module than a desktop. Which
memory module type is used in laptops?
A. DIMM (Dual In-line Memory Module)
B. SODIMM (Small Outline Dual In-line Memory Module)
C. SIMM (Single In-line Memory Module)
D. RIMM (Rambus In-line Memory Module)
B. SODIMM (Small Outline Dual In-line Memory Module) [CORRECT]
Rationale: SODIMMs are approximately half the size of DIMMs and are standard in
laptops and compact systems. DIMMs (A) are for desktops. SIMMs (C) and RIMMs (D)
are obsolete technologies.
Correct Answer: B
Q5. Which motherboard form factor is the largest and offers the most expansion
slots?
A. Mini-ITX
B. Micro-ATX
C. ATX
D. Nano-ITX
C. ATX [CORRECT]
Rationale: ATX (Advanced Technology Extended) is the largest standard form factor,
providing maximum expansion slots and connectivity. Mini-ITX (A), Micro-ATX (B),
and Nano-ITX (D) are progressively smaller with fewer slots.
Correct Answer: C
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Q6. A technician needs to connect a modern 4K monitor to a computer using a
single cable that carries both video and audio. Which connector is most appropriate?
A. VGA (Video Graphics Array)
B. DVI (Digital Visual Interface)
C. HDMI (High-Definition Multimedia Interface)
D. PS/2
C. HDMI (High-Definition Multimedia Interface) [CORRECT]
Rationale: HDMI carries digital video and audio over a single cable and supports 4K
resolution. VGA (A) and DVI (B) do not carry audio and have lower maximum
resolutions. PS/2 (D) is for keyboards/mice.
Correct Answer: C
Q7. Which RAID configuration provides both striping and mirroring, offering
redundancy and improved performance?
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 10
D. RAID 10 [CORRECT]
Rationale: RAID 10 (1+0) combines RAID 1 mirroring with RAID 0 striping, providing
both redundancy and performance. RAID 0 (A) has no redundancy. RAID 1 (B) mirrors
only. RAID 5 (C) stripes with parity but not mirroring.
Correct Answer: D
Q8. A computer has 8 GB of RAM installed but the operating system shows only 3.2
GB available. The most likely cause is:
A. The RAM is defective
B. The system is running a 32-bit operating system
C. The RAM is installed in the wrong slots
D. The power supply is insufficient
B. The system is running a 32-bit operating system [CORRECT]
Rationale: 32-bit operating systems can address a maximum of approximately 4 GB
of RAM (often 3.2-3.5 GB usable). 64-bit systems can address much more. Defective
WGU D322 INTRODUCTION TO INFORMATION
TECHNOLOGY 2026/2027 | CompTIA ITF+ Aligned |
Objective Assessment | Already Passed | Questions &
Answers | Pass Guaranteed - A+ Graded
Section 1: IT Concepts & Terminology - Hardware Components (Q1-15)
Q1. Which hardware component is responsible for executing instructions and
performing calculations in a computer system?
A. Random Access Memory (RAM)
B. Central Processing Unit (CPU)
C. Solid State Drive (SSD)
D. Power Supply Unit (PSU)
B. Central Processing Unit (CPU) [CORRECT]
Rationale: The CPU is the primary processing component that executes program
instructions and performs arithmetic/logic operations. RAM (A) is volatile memory,
SSD (C) is storage, and PSU (D) provides power.
Correct Answer: B
Q2. A user needs to store large video files and wants the fastest possible read/write
speeds. Which storage technology is most appropriate?
A. Hard Disk Drive (HDD) with SATA interface
B. Solid State Drive (SSD) with NVMe interface
C. Optical drive (DVD-RW)
D. Magnetic tape backup
B. Solid State Drive (SSD) with NVMe interface [CORRECT]
Rationale: NVMe SSDs use PCIe lanes for significantly faster data transfer than SATA
SSDs or HDDs. Optical drives (C) and tape (D) are much slower and primarily used for
archival purposes.
Correct Answer: B
Q3. Which type of memory is volatile and loses its contents when power is removed?
,2
A. Read-Only Memory (ROM)
B. Solid State Drive (SSD)
C. Dynamic Random Access Memory (DRAM)
D. Hard Disk Drive (HDD)
C. Dynamic Random Access Memory (DRAM) [CORRECT]
Rationale: DRAM is volatile memory used as system RAM; it requires constant power
to retain data. ROM (A), SSD (B), and HDD (D) are non-volatile storage that persists
without power.
Correct Answer: C
Q4. A laptop requires a smaller form factor memory module than a desktop. Which
memory module type is used in laptops?
A. DIMM (Dual In-line Memory Module)
B. SODIMM (Small Outline Dual In-line Memory Module)
C. SIMM (Single In-line Memory Module)
D. RIMM (Rambus In-line Memory Module)
B. SODIMM (Small Outline Dual In-line Memory Module) [CORRECT]
Rationale: SODIMMs are approximately half the size of DIMMs and are standard in
laptops and compact systems. DIMMs (A) are for desktops. SIMMs (C) and RIMMs (D)
are obsolete technologies.
Correct Answer: B
Q5. Which motherboard form factor is the largest and offers the most expansion
slots?
A. Mini-ITX
B. Micro-ATX
C. ATX
D. Nano-ITX
C. ATX [CORRECT]
Rationale: ATX (Advanced Technology Extended) is the largest standard form factor,
providing maximum expansion slots and connectivity. Mini-ITX (A), Micro-ATX (B),
and Nano-ITX (D) are progressively smaller with fewer slots.
Correct Answer: C
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Q6. A technician needs to connect a modern 4K monitor to a computer using a
single cable that carries both video and audio. Which connector is most appropriate?
A. VGA (Video Graphics Array)
B. DVI (Digital Visual Interface)
C. HDMI (High-Definition Multimedia Interface)
D. PS/2
C. HDMI (High-Definition Multimedia Interface) [CORRECT]
Rationale: HDMI carries digital video and audio over a single cable and supports 4K
resolution. VGA (A) and DVI (B) do not carry audio and have lower maximum
resolutions. PS/2 (D) is for keyboards/mice.
Correct Answer: C
Q7. Which RAID configuration provides both striping and mirroring, offering
redundancy and improved performance?
A. RAID 0
B. RAID 1
C. RAID 5
D. RAID 10
D. RAID 10 [CORRECT]
Rationale: RAID 10 (1+0) combines RAID 1 mirroring with RAID 0 striping, providing
both redundancy and performance. RAID 0 (A) has no redundancy. RAID 1 (B) mirrors
only. RAID 5 (C) stripes with parity but not mirroring.
Correct Answer: D
Q8. A computer has 8 GB of RAM installed but the operating system shows only 3.2
GB available. The most likely cause is:
A. The RAM is defective
B. The system is running a 32-bit operating system
C. The RAM is installed in the wrong slots
D. The power supply is insufficient
B. The system is running a 32-bit operating system [CORRECT]
Rationale: 32-bit operating systems can address a maximum of approximately 4 GB
of RAM (often 3.2-3.5 GB usable). 64-bit systems can address much more. Defective
