COMPUTER ARCHITECTURE EXAMINATION QUESTIONS
AND CORRECT ANSWER WITH EXPLANATION GRADED
A+ STUDY GUIDE SOUTHERN NEW HAMPSHIRE
UNIVERSITY
1. Computer architecture refers to:
A. Design and structure of a computer system
B. Software programs only
C. Network design only
D. Database systems only
Answer: A
Rationale: It describes how a computer is organized.
2. The main components of a computer system are:
A. CPU, memory, input/output
B. Keyboard only
C. Software only
D. Internet only
Answer: A
Rationale: Core hardware components.
3. CPU stands for:
A. Central Processing Unit
B. Computer Processing Utility
C. Central Program Unit
D. Control Processing Unit
Answer: A
Rationale: Main processing unit.
4. The CPU is responsible for:
A. Executing instructions
B. Displaying graphics
C. Storing files permanently
D. Printing documents
Answer: A
Rationale: It performs computation.
,5. The ALU performs:
A. Arithmetic and logical operations
B. Memory storage
C. Input handling
D. Output display
Answer: A
Rationale: Calculation and logic operations.
6. Control Unit (CU) is responsible for:
A. Directing CPU operations
B. Storing data
C. Displaying output
D. Network communication
Answer: A
Rationale: It controls instruction execution.
7. Registers are:
A. Small fast storage inside CPU
B. External storage devices
C. Input devices
D. Output devices
Answer: A
Rationale: Very fast internal memory.
8. Cache memory is used to:
A. Speed up data access
B. Store permanent files
C. Replace RAM
D. Print data
Answer: A
Rationale: Reduces access time.
9. Primary memory includes:
A. RAM and ROM
B. Hard disk only
C. USB only
D. CPU only
Answer: A
Rationale: Main memory types.
, 10. RAM is:
A. Volatile memory
B. Permanent memory
C. Optical memory
D. External memory
Answer: A
Rationale: Data is lost when power is off.
11. ROM is:
A. Non-volatile memory
B. Temporary memory
C. Cache memory
D. Virtual memory
Answer: A
Rationale: Stores permanent instructions.
12. Instruction cycle includes:
A. Fetch, decode, execute
B. Compile, run, save
C. Input, output, delete
D. Load, print, store
Answer: A
Rationale: CPU operation cycle.
13. Fetch stage means:
A. Getting instruction from memory
B. Executing instruction
C. Storing data
D. Printing output
Answer: A
Rationale: Retrieve instruction.
14. Decode stage means:
A. Interpreting instruction
B. Saving file
C. Printing data
D. Input process
Answer: A
Rationale: Understanding instruction.
AND CORRECT ANSWER WITH EXPLANATION GRADED
A+ STUDY GUIDE SOUTHERN NEW HAMPSHIRE
UNIVERSITY
1. Computer architecture refers to:
A. Design and structure of a computer system
B. Software programs only
C. Network design only
D. Database systems only
Answer: A
Rationale: It describes how a computer is organized.
2. The main components of a computer system are:
A. CPU, memory, input/output
B. Keyboard only
C. Software only
D. Internet only
Answer: A
Rationale: Core hardware components.
3. CPU stands for:
A. Central Processing Unit
B. Computer Processing Utility
C. Central Program Unit
D. Control Processing Unit
Answer: A
Rationale: Main processing unit.
4. The CPU is responsible for:
A. Executing instructions
B. Displaying graphics
C. Storing files permanently
D. Printing documents
Answer: A
Rationale: It performs computation.
,5. The ALU performs:
A. Arithmetic and logical operations
B. Memory storage
C. Input handling
D. Output display
Answer: A
Rationale: Calculation and logic operations.
6. Control Unit (CU) is responsible for:
A. Directing CPU operations
B. Storing data
C. Displaying output
D. Network communication
Answer: A
Rationale: It controls instruction execution.
7. Registers are:
A. Small fast storage inside CPU
B. External storage devices
C. Input devices
D. Output devices
Answer: A
Rationale: Very fast internal memory.
8. Cache memory is used to:
A. Speed up data access
B. Store permanent files
C. Replace RAM
D. Print data
Answer: A
Rationale: Reduces access time.
9. Primary memory includes:
A. RAM and ROM
B. Hard disk only
C. USB only
D. CPU only
Answer: A
Rationale: Main memory types.
, 10. RAM is:
A. Volatile memory
B. Permanent memory
C. Optical memory
D. External memory
Answer: A
Rationale: Data is lost when power is off.
11. ROM is:
A. Non-volatile memory
B. Temporary memory
C. Cache memory
D. Virtual memory
Answer: A
Rationale: Stores permanent instructions.
12. Instruction cycle includes:
A. Fetch, decode, execute
B. Compile, run, save
C. Input, output, delete
D. Load, print, store
Answer: A
Rationale: CPU operation cycle.
13. Fetch stage means:
A. Getting instruction from memory
B. Executing instruction
C. Storing data
D. Printing output
Answer: A
Rationale: Retrieve instruction.
14. Decode stage means:
A. Interpreting instruction
B. Saving file
C. Printing data
D. Input process
Answer: A
Rationale: Understanding instruction.
