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WGU C954 Information Technology Management 2026: 400
Practice Questions with Verified Answers & Rationales –
Complete Study Guide Comprehensive Exam 400 Questions
with Detailed Answers and Rationales
SECTION 1: IT FUNDAMENTALS AND HARDWARE (Questions 1-40)
1. Which data set consumes disk space equal to the change in the data since it
was last captured?
A. Static
B. Snapshot
C. Dynamic
D. Big
Answer: B
Rationale: A snapshot consumes disk space equal to the change in data since
it was last captured. It captures the state of a system at a specific point in
time, storing only the differences from the previous snapshot. Static data (A)
does not change. Dynamic data (C) changes constantly but is not a storage
method. Big data (D) refers to large, complex data sets.
2. Which component functions as a computer's working memory?
A. Central Processing Unit (CPU)
B. Read-Only Memory (ROM)
C. Random Access Memory (RAM)
D. Solid State Drive (SSD)
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Answer: C
Rationale: RAM (Random Access Memory) functions as a computer's working
memory, temporarily storing data and instructions that the CPU needs to
access quickly. The CPU (A) processes instructions. ROM (B) stores permanent
instructions. SSD (D) is secondary storage.
3. What is a secondary storage medium?
A. Read-Only Memory
B. Cache
C. Magnetic tape
D. Random Access Memory
Answer: C
Rationale: Magnetic tape is a secondary storage medium used for long-term
data storage and backup. ROM (A) is primary storage. Cache (B) is high-speed
temporary storage. RAM (D) is primary storage.
4. Which category of hardware is described as "equipment used to capture
information and commands"?
A. Primary storage
B. Secondary storage
C. Input devices
D. Output devices
Answer: C
Rationale: Input devices are equipment used to capture information and
commands (e.g., keyboards, mice, scanners). Primary storage (A) and
secondary storage (B) store data. Output devices (D) display or output
information.
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5. What is the role of the CPU in a computer system?
A. To interpret and execute program instructions
B. To send information and receive it from one location to another
C. To capture information and commands
D. To store large volumes of data for long-term storage
Answer: A
Rationale: The CPU interprets and executes program instructions. Option B
describes network communication. Option C describes input devices. Option D
describes secondary storage.
**6. Which type of computer is designed for multiple users and can handle
hundreds or thousands of connected users simultaneously?**
A. Desktop computer
B. Minicomputer
C. Mainframe computer
D. Laptop
Answer: C
Rationale: Mainframe computers are designed for multiple users and can
handle hundreds or thousands of connected users simultaneously. Desktop
computers (A) and laptops (D) are single-user. Minicomputers (B) are mid-
range.
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7. What is system software?
A. Software that controls the application software and manages how the
hardware devices work together
B. Software used for specific information processing needs
C. Software that controls how the various technology tools work together
with the application software
D. Software that handles contact information, appointments, task lists, and
email
Answer: A
Rationale: System software controls the application software and manages
how hardware devices work together. Option B describes application
software. Option C is a partial description. Option D describes personal
information management software.
8. Which component is key in enterprise resource planning (ERP) systems?
A. Metrics dashboard
B. Common data repository
C. Virtual desktop
D. Local area network (LAN)
Answer: B
Rationale: A common data repository is key in ERP systems because it allows
all departments to access and share the same data. Metrics dashboards (A)
are reporting tools. Virtual desktops (C) are virtualization tools. LANs (D) are
networks.
WGU C954 Information Technology Management 2026: 400
Practice Questions with Verified Answers & Rationales –
Complete Study Guide Comprehensive Exam 400 Questions
with Detailed Answers and Rationales
SECTION 1: IT FUNDAMENTALS AND HARDWARE (Questions 1-40)
1. Which data set consumes disk space equal to the change in the data since it
was last captured?
A. Static
B. Snapshot
C. Dynamic
D. Big
Answer: B
Rationale: A snapshot consumes disk space equal to the change in data since
it was last captured. It captures the state of a system at a specific point in
time, storing only the differences from the previous snapshot. Static data (A)
does not change. Dynamic data (C) changes constantly but is not a storage
method. Big data (D) refers to large, complex data sets.
2. Which component functions as a computer's working memory?
A. Central Processing Unit (CPU)
B. Read-Only Memory (ROM)
C. Random Access Memory (RAM)
D. Solid State Drive (SSD)
, 2
Answer: C
Rationale: RAM (Random Access Memory) functions as a computer's working
memory, temporarily storing data and instructions that the CPU needs to
access quickly. The CPU (A) processes instructions. ROM (B) stores permanent
instructions. SSD (D) is secondary storage.
3. What is a secondary storage medium?
A. Read-Only Memory
B. Cache
C. Magnetic tape
D. Random Access Memory
Answer: C
Rationale: Magnetic tape is a secondary storage medium used for long-term
data storage and backup. ROM (A) is primary storage. Cache (B) is high-speed
temporary storage. RAM (D) is primary storage.
4. Which category of hardware is described as "equipment used to capture
information and commands"?
A. Primary storage
B. Secondary storage
C. Input devices
D. Output devices
Answer: C
Rationale: Input devices are equipment used to capture information and
commands (e.g., keyboards, mice, scanners). Primary storage (A) and
secondary storage (B) store data. Output devices (D) display or output
information.
, 3
5. What is the role of the CPU in a computer system?
A. To interpret and execute program instructions
B. To send information and receive it from one location to another
C. To capture information and commands
D. To store large volumes of data for long-term storage
Answer: A
Rationale: The CPU interprets and executes program instructions. Option B
describes network communication. Option C describes input devices. Option D
describes secondary storage.
**6. Which type of computer is designed for multiple users and can handle
hundreds or thousands of connected users simultaneously?**
A. Desktop computer
B. Minicomputer
C. Mainframe computer
D. Laptop
Answer: C
Rationale: Mainframe computers are designed for multiple users and can
handle hundreds or thousands of connected users simultaneously. Desktop
computers (A) and laptops (D) are single-user. Minicomputers (B) are mid-
range.
, 4
7. What is system software?
A. Software that controls the application software and manages how the
hardware devices work together
B. Software used for specific information processing needs
C. Software that controls how the various technology tools work together
with the application software
D. Software that handles contact information, appointments, task lists, and
Answer: A
Rationale: System software controls the application software and manages
how hardware devices work together. Option B describes application
software. Option C is a partial description. Option D describes personal
information management software.
8. Which component is key in enterprise resource planning (ERP) systems?
A. Metrics dashboard
B. Common data repository
C. Virtual desktop
D. Local area network (LAN)
Answer: B
Rationale: A common data repository is key in ERP systems because it allows
all departments to access and share the same data. Metrics dashboards (A)
are reporting tools. Virtual desktops (C) are virtualization tools. LANs (D) are
networks.
