Computer Organization and Architecture Basics MCQs with Answers Part 3. This mcqs most helpful in SPPU exam 2020 and in other Inportant Exams.
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1. Throughput is also called as………
a. execution time
b. response time
c. bandwidth
d. elapsed time
Ans - C
2. Decreasing response time almost always improves……..
a. execution time
b. response time
c. bandwidth
d. elapsed time
Ans - C
3. ……response time almost always improves throughput
a. Decreasing
b. Increasing
c. Constant
d. both a & b
Ans - A
4. …….response time for some tasks maximizes computer performance
a. Maximizing
b. Minimizing
c. Constant
d. both a & b
Ans - B
5. If computer A runs a program in 10 seconds & computer B runs the same programs in 15 seconds, how much faster is A than B?
a. 1
b. 1.5
c. 10
d. 15
Ans - B
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6. If computer A runs a program in 1000 seconds & computer B runs the same programs in 1500 seconds, how much faster is A than B?
a. 50
b. 100
c. 150
d. 200
Ans - C
7. The actual time the CPU spends computing for a specific task is called as…..
a. CPU time
b. user CPU time
c. system CPU time
d. none of the above
Ans - A
8. CPU time spent in a program itself is called as……….
a. CPU time
b. user CPU time
c. system CPU time
d. none of the above
Ans - B
9. If program runs in 10 seconds on a computer, which has 2 GHZ clock , then number of clock cycles required for program A will be ......
a. 1x109
b. 2x109
c. 10x109
d. 20x109
Ans - D
10. Computer will run program in………seconds if it has a clock rate of 2 GHZ and 20x109 no. of clock cycles
a. 6
b. 10
c. 12
d. 15
Ans - B
11. Computer will run program in………seconds if it has a clock rate of 4 GHZ and 16x109 no. of clock cycles
a. 4
b. 6
c. 12
d. 15
Ans - A
12. If program runs in 6 seconds on a computer , which has 4 GHZ clock , then number of clock cycles required for program A will be ......
a. 1x109
b. 2x109
c. 10x109
d. 24x109
Ans - D
13. If computer A has 24x109 CPU clock cycles and CPI of 2 , then ........ instructions will be present in a program.
a. 1x109
b. 12x109
c. 10x109
d. 20x109
ANs - B
14. Computer with program holding 10x109 instructions & CPU clock cycles of 20x109 will have CPI of………….
a. 1
b. 2
c. 10
d. none of the above
Ans - B
15. Computer with program holding 8x109 instructions & CPU clock cycles of 24x109 will have CPI of………….
a. 1
b. 2
c. 3
d. none of the above
Ans - C
16. Computer executing a program holding 10x109 instructions and having CPI of 1.1 will need ..... CPU clock cycles.
a. 10x109
b. 11x109
c. 12x109
d. 20x109
Ans - B
17. Instruction count in a program depends on………….
a. architecture
b. exact implementation
c. processor structure
d. memory system
Ans - A
18. CPI depends upon……………
a. architecture
b. processor structure
c. memory system
d. both B & C
Ans - D
19. Algorithm of a program affects ....
a. instruction count
b. clock rate
c.CPU time
d. Throughput
Ans - A
20. In computer system compiler affects ....
a. CPI
b. CPU time
c. bandwidth
d. clock rate
Ans - A
21. In computer system instruction set architecture affects ....
a. clock rate
b. CPI
c. throughput
d. CPU time
Ans - B
22. Amdahl’s Law defines the ........ that can be gained by using a particular Feature of a computer.
a. Speedup
b. response time
c. throughput
d. bandwidth
Ans - A
23. Enhancement in the processor possible using Amdahl’s Law is always ......
a. less than 1
b. less than or equal to 1
c. greater than or equal to 1
d. greater than 1
Ans - B
24. With Amdahl’s Law if an enhancement is only usable for a fraction of a task, we can’t speed up the task by more than the reciprocal of .....
a. Fraction
b. 1 plus that fraction
c. 1 minus that fraction
d. 2 minus that fraction
Ans - C
25. Faster machines have ......... MIPS
a. lower
b. medium
c. higher
d. both B & C
Ans - C
26. Different programs on the same computer has ....... MIPS values.
a. same
b. different
c. Both of a and b
d. None of these
Ans - B
27. MIPS is....... dependent.
a. instruction set
b. response time
c. throughput
d. bandwidth
Ans - A
28. MIPS can vary ...... to performance of a computer.
a. in proportion
b. inversely
c. directly
d. Both b and c
Ans - B
29. MFLOPS is....... dependent.
a. program
b. response time
c. throughput
d. bandwidth
Ans - A
30. The system performs 2*107 floating point operations and execuation time of system is 2 seconds. Calculate MFLOPS?
a. 1
b. 10
c. 100
d. 1000
Ans - B
31. What will be a result of performing multiplication operation on nos. (+13)10 & (-6)10
a. 1110110010
b. 1110111010
c. 1010110010
d. 1110110001
Ans - A
32. What will be a result of performing multiplication operation on nos. (-13)10 & (-6)10
a. 1111010
b. 1001110
c. 1010110
d. 1110110
Ans - B
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