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Performance of a System - GATE CSE (CSE) Computer Architecture & Organisation


MCQ Practice Test & Solutions: Test: Performance of a System (15 Questions)

You can prepare effectively for Computer Science Engineering (CSE) Computer Architecture & Organisation (CAO) with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Performance of a System". These 15 questions have been designed by the experts with the latest curriculum of Computer Science Engineering (CSE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 15 minutes
  • - Number of Questions: 15

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Test: Performance of a System - Question 1

 During the execution of the instructions, a copy of the instructions is placed in the ______

Detailed Solution: Question 1

The instruction that is being executed is loaded into the Instruction Register (IR); the control unit reads the instruction from the IR for decoding and execution.

Instructions are fetched from main memory; a cache may keep a copy of recently used instructions to speed up subsequent fetches, but the actual instruction in execution is held in the IR.

The Program Counter supplies the address of the next instruction to fetch; after fetching, the instruction is placed into the IR where it remains while the CPU decodes and executes it.

Thus, the correct answer is Register, referring to the Instruction Register.

Test: Performance of a System - Question 2

 Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an average of 3 steps and B can execute with an average of 5 steps. For the execution of the same instruction which processor is faster ?

Detailed Solution: Question 2

Answer: a
Explanation: The performance of a system can be found out using the Basic performance formula.

Test: Performance of a System - Question 3

A processor performing fetch or decoding of different instruction during the execution of another instruction is called ______

Detailed Solution: Question 3

Answer: b
Explanation: Pipe-lining is the process of improving the performance of the system by processing different instructions at the same time, with only one instruction performing one specific operation.

Test: Performance of a System - Question 4

For a given FINITE number of instructions to be executed, which architecture of the processor provides for a faster execution ?

Detailed Solution: Question 4

Answer: c
Explanation: In super-scalar architecture, the instructions are set in groups and they’re decoded and executed together reducing the amount of time required to process them.

Test: Performance of a System - Question 5

The clock rate of the processor can be improved by _________

Detailed Solution: Question 5

Answer: d
Explanation: The clock rate(frequency of the processor) is the hardware dependent quantity it is fixed for a given processor.

Test: Performance of a System - Question 6

An optimizing Compiler does _________

Detailed Solution: Question 6

Answer: b
Explanation: An optimizing compiler is a compiler designed for the specific purpose of increasing the operation speed of the processor by reducing the time taken to compile the program instructions.

Test: Performance of a System - Question 7

 The ultimate goal of a compiler is to ________

Test: Performance of a System - Question 8

 SPEC stands for _______

Detailed Solution: Question 8

Answer: c
Explanation: SPEC is a corporation started to standardize the evaluation method of a systems performance.

Test: Performance of a System - Question 9

As of 2000, the reference system to find the performance of a system is _____

Detailed Solution: Question 9

Answer: a
Explanation: In SPEC system of measuring a systems performance, a system is used as a reference against which other systems are compared and performance is determined.

Test: Performance of a System - Question 10

When Performing a looping operation, the instruction gets stored in the ______

Detailed Solution: Question 10

Answer: b
Explanation: When a looping or branching operation is carried out the offset value is stored in the cache along with the data

Test: Performance of a System - Question 11

If a processor clock is rated as 1250 million cycles per second, then its clock period is ________

Test: Performance of a System - Question 12

The average number of steps taken to execute the set of instructions can be made to be less than one by following _______

Detailed Solution: Question 12

Answer: c
Explanation: The number of steps required to execute a given set of instructions is sufficiently reduced by using super-scaling. In this method a set of instructions are grouped together and are processed.

Test: Performance of a System - Question 13

CISC stands for _______

Detailed Solution: Question 13

Answer: c
Explanation: CISC is a type of system architecture where complex instructions are grouped together and executed to improve the system performance.

Test: Performance of a System - Question 14

As of 2000, the reference system to find the SPEC rating are built with _____ Processor.

Test: Performance of a System - Question 15

If the instruction, Add R1, R2, R3 is executed in a system which is pipe-lined, then the value of S is (Where S is term of the Basic performance equation)

Detailed Solution: Question 15

Answer: c
Explanation: S is the number of steps required to execute the instructions.

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