WGU D322 – Introduction to Information
Technology EXAMINATION COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
1. Which statement best describes the primary purpose of
information technology within a modern organization?
A. To eliminate the need for employees
B. To manage, process, store, communicate, and protect information
C. To manufacture physical products automatically
D. To replace all organizational decision-making
Answer: B
Rationale: Information technology encompasses hardware, software,
networks, data, and related processes used to create, process, store,
communicate, and protect information.
2. A computer is primarily able to perform useful tasks because
hardware components work together with which essential type of
resource?
A. Software
B. Electricity only
C. Paper documentation
D. Physical networking cables
Answer: A
,Rationale: Hardware provides the physical computing components,
while software provides instructions that tell the hardware what
operations to perform.
3. Which computer component is primarily responsible for executing
instructions and performing arithmetic and logical operations?
A. Hard disk drive
B. Central processing unit
C. Monitor
D. Network interface card
Answer: B
Rationale: The CPU executes program instructions and performs
arithmetic, logical, control, and other processing operations.
4. Why does increasing the amount of RAM generally improve a
computer's ability to run multiple applications simultaneously?
A. RAM permanently stores applications
B. RAM provides temporary working space for active programs and
data
C. RAM increases monitor resolution
D. RAM replaces the CPU
Answer: B
Rationale: RAM is volatile working memory that holds programs and
data currently being used, allowing the operating system to manage
multiple active processes efficiently.
,5. Which characteristic most accurately distinguishes volatile memory
from nonvolatile storage?
A. Volatile memory loses its contents when power is removed
B. Volatile memory is always slower than storage
C. Nonvolatile storage requires constant electrical power
D. Nonvolatile storage cannot contain operating systems
Answer: A
Rationale: Volatile memory, such as RAM, normally loses stored
information when power is removed, whereas nonvolatile storage
retains information.
6. Which storage technology generally uses spinning magnetic platters
to record and retrieve digital information?
A. SSD
B. HDD
C. RAM
D. ROM
Answer: B
Rationale: Traditional hard disk drives use rotating magnetic platters
and mechanical read/write heads to store and retrieve information.
7. Which advantage is most commonly associated with solid-state
drives compared with traditional hard disk drives?
, A. They contain more moving mechanical components
B. They generally provide faster access and improved resistance to
physical shock
C. They require magnetic platters
D. They cannot store operating systems
Answer: B
Rationale: SSDs use flash memory rather than moving platters and
heads, generally resulting in faster access, lower latency, and better
physical durability.
8. Which component allows a computer to communicate with other
devices across a network?
A. Network interface card
B. Power supply
C. CPU cooler
D. Keyboard controller
Answer: A
Rationale: A network interface card or network adapter provides the
hardware and communication interface needed to connect a computer
to a network.
9. What is the primary function of an operating system on a personal
computer?
A. To manufacture hardware
B. To manage hardware resources and provide services for applications
Technology EXAMINATION COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR JUST RELEASED
1. Which statement best describes the primary purpose of
information technology within a modern organization?
A. To eliminate the need for employees
B. To manage, process, store, communicate, and protect information
C. To manufacture physical products automatically
D. To replace all organizational decision-making
Answer: B
Rationale: Information technology encompasses hardware, software,
networks, data, and related processes used to create, process, store,
communicate, and protect information.
2. A computer is primarily able to perform useful tasks because
hardware components work together with which essential type of
resource?
A. Software
B. Electricity only
C. Paper documentation
D. Physical networking cables
Answer: A
,Rationale: Hardware provides the physical computing components,
while software provides instructions that tell the hardware what
operations to perform.
3. Which computer component is primarily responsible for executing
instructions and performing arithmetic and logical operations?
A. Hard disk drive
B. Central processing unit
C. Monitor
D. Network interface card
Answer: B
Rationale: The CPU executes program instructions and performs
arithmetic, logical, control, and other processing operations.
4. Why does increasing the amount of RAM generally improve a
computer's ability to run multiple applications simultaneously?
A. RAM permanently stores applications
B. RAM provides temporary working space for active programs and
data
C. RAM increases monitor resolution
D. RAM replaces the CPU
Answer: B
Rationale: RAM is volatile working memory that holds programs and
data currently being used, allowing the operating system to manage
multiple active processes efficiently.
,5. Which characteristic most accurately distinguishes volatile memory
from nonvolatile storage?
A. Volatile memory loses its contents when power is removed
B. Volatile memory is always slower than storage
C. Nonvolatile storage requires constant electrical power
D. Nonvolatile storage cannot contain operating systems
Answer: A
Rationale: Volatile memory, such as RAM, normally loses stored
information when power is removed, whereas nonvolatile storage
retains information.
6. Which storage technology generally uses spinning magnetic platters
to record and retrieve digital information?
A. SSD
B. HDD
C. RAM
D. ROM
Answer: B
Rationale: Traditional hard disk drives use rotating magnetic platters
and mechanical read/write heads to store and retrieve information.
7. Which advantage is most commonly associated with solid-state
drives compared with traditional hard disk drives?
, A. They contain more moving mechanical components
B. They generally provide faster access and improved resistance to
physical shock
C. They require magnetic platters
D. They cannot store operating systems
Answer: B
Rationale: SSDs use flash memory rather than moving platters and
heads, generally resulting in faster access, lower latency, and better
physical durability.
8. Which component allows a computer to communicate with other
devices across a network?
A. Network interface card
B. Power supply
C. CPU cooler
D. Keyboard controller
Answer: A
Rationale: A network interface card or network adapter provides the
hardware and communication interface needed to connect a computer
to a network.
9. What is the primary function of an operating system on a personal
computer?
A. To manufacture hardware
B. To manage hardware resources and provide services for applications
