IT Specialist EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES
2025/2026 Q&A | INSTANT DOWNLOAD
PDF
Question 1
The CPU is primarily responsible for:
A. Displaying images on the monitor
B. Executing program instructions
C. Storing files permanently
D. Connecting to the Internet
Correct Answer: B. Executing program instructions
Rationale: The Central Processing Unit (CPU) performs calculations and executes
instructions that control computer operations.
Question 2
RAM is best described as:
A. Permanent storage
B. Temporary working memory
C. Optical storage
D. Backup storage
Correct Answer: B. Temporary working memory
,Rationale: Random Access Memory (RAM) temporarily stores data and programs
currently in use. Its contents are lost when power is turned off.
Question 3
Which device provides permanent data storage?
A. RAM
B. CPU Cache
C. Solid-State Drive (SSD)
D. Processor Register
Correct Answer: C. Solid-State Drive (SSD)
Rationale: SSDs provide non-volatile storage that retains data even when the
computer is powered off.
Question 4
Which component supplies electrical power to a desktop computer?
A. Motherboard
B. Power Supply Unit (PSU)
C. Heat Sink
D. Network Card
Correct Answer: B. Power Supply Unit (PSU)
Rationale: The PSU converts AC power into regulated DC power for computer
components.
Question 5
The motherboard primarily serves to:
A. Display graphics
B. Connect and allow communication between hardware components
,C. Store backups
D. Improve Internet speed
Correct Answer: B. Connect and allow communication between hardware
components
Rationale: The motherboard provides electrical connections and communication
pathways between system components.
Question 6
Which hardware component processes graphics?
A. GPU
B. HDD
C. PSU
D. NIC
Correct Answer: A. GPU
Rationale: The Graphics Processing Unit (GPU) performs graphical calculations for
displays and applications.
Question 7
Which storage device generally provides the fastest read and write speeds?
A. DVD
B. HDD
C. SSD
D. Tape Drive
Correct Answer: C. SSD
Rationale: SSDs use flash memory, allowing significantly faster access than
mechanical hard drives.
Question 8
, Which operating system is developed by Microsoft?
A. Linux
B. macOS
C. Windows
D. Android
Correct Answer: C. Windows
Rationale: Microsoft develops the Windows family of operating systems.
Question 9
The primary function of an operating system is to:
A. Build websites
B. Manage hardware and software resources
C. Design databases
D. Replace antivirus software
Correct Answer: B. Manage hardware and software resources
Rationale: The operating system coordinates hardware, applications, files,
memory, and user interactions.
Question 10
Which file system is commonly used by modern Windows operating systems?
A. FAT12
B. NTFS
C. ext4
D. HFS+
Correct Answer: B. NTFS
Rationale: NTFS is the standard Windows file system, supporting permissions,
encryption, and large volumes.
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES
2025/2026 Q&A | INSTANT DOWNLOAD
Question 1
The CPU is primarily responsible for:
A. Displaying images on the monitor
B. Executing program instructions
C. Storing files permanently
D. Connecting to the Internet
Correct Answer: B. Executing program instructions
Rationale: The Central Processing Unit (CPU) performs calculations and executes
instructions that control computer operations.
Question 2
RAM is best described as:
A. Permanent storage
B. Temporary working memory
C. Optical storage
D. Backup storage
Correct Answer: B. Temporary working memory
,Rationale: Random Access Memory (RAM) temporarily stores data and programs
currently in use. Its contents are lost when power is turned off.
Question 3
Which device provides permanent data storage?
A. RAM
B. CPU Cache
C. Solid-State Drive (SSD)
D. Processor Register
Correct Answer: C. Solid-State Drive (SSD)
Rationale: SSDs provide non-volatile storage that retains data even when the
computer is powered off.
Question 4
Which component supplies electrical power to a desktop computer?
A. Motherboard
B. Power Supply Unit (PSU)
C. Heat Sink
D. Network Card
Correct Answer: B. Power Supply Unit (PSU)
Rationale: The PSU converts AC power into regulated DC power for computer
components.
Question 5
The motherboard primarily serves to:
A. Display graphics
B. Connect and allow communication between hardware components
,C. Store backups
D. Improve Internet speed
Correct Answer: B. Connect and allow communication between hardware
components
Rationale: The motherboard provides electrical connections and communication
pathways between system components.
Question 6
Which hardware component processes graphics?
A. GPU
B. HDD
C. PSU
D. NIC
Correct Answer: A. GPU
Rationale: The Graphics Processing Unit (GPU) performs graphical calculations for
displays and applications.
Question 7
Which storage device generally provides the fastest read and write speeds?
A. DVD
B. HDD
C. SSD
D. Tape Drive
Correct Answer: C. SSD
Rationale: SSDs use flash memory, allowing significantly faster access than
mechanical hard drives.
Question 8
, Which operating system is developed by Microsoft?
A. Linux
B. macOS
C. Windows
D. Android
Correct Answer: C. Windows
Rationale: Microsoft develops the Windows family of operating systems.
Question 9
The primary function of an operating system is to:
A. Build websites
B. Manage hardware and software resources
C. Design databases
D. Replace antivirus software
Correct Answer: B. Manage hardware and software resources
Rationale: The operating system coordinates hardware, applications, files,
memory, and user interactions.
Question 10
Which file system is commonly used by modern Windows operating systems?
A. FAT12
B. NTFS
C. ext4
D. HFS+
Correct Answer: B. NTFS
Rationale: NTFS is the standard Windows file system, supporting permissions,
encryption, and large volumes.
