Test: Hazards of Processor Architecture


10 Questions MCQ Test Computer Architecture & Organisation (CAO) | Test: Hazards of Processor Architecture


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Attempt Test: Hazards of Processor Architecture | 10 questions in 10 minutes | Mock test for Electronics and Communication Engineering (ECE) preparation | Free important questions MCQ to study Computer Architecture & Organisation (CAO) for Electronics and Communication Engineering (ECE) Exam | Download free PDF with solutions
QUESTION: 1

Any condition that causes a processor to stall is called as _____

Solution:

Answer: a
Explanation: An hazard causes a delay in the execution process of the processor.

QUESTION: 2

The periods of time when the unit is idle is called as _____

Solution:

Answer: d
Explanation: The stalls are a type of hazards that affect a pipe-lined system.

QUESTION: 3

The contention for the usage of a hardware device is called as ______

Solution:

Answer: a
Explanation: The processor contends for the usage of the hardware and might enter into a deadlock state.

QUESTION: 4

The situation where in the data of operands are not available is called ______

Solution:

Answer: a
Explanation: Data hazards are generally caused when the data is not ready on the destination side.

QUESTION: 5

 The stalling of the processor due to the unavailability of the instructions is called as ____

Solution:

Answer: a
Explanation: The control hazard also called as instruction hazard is usually caused by a cache miss.

QUESTION: 6

The time lost due to branch instruction is often referred to as _____

Solution:

Answer: c
Explanation: This time also retards the performance speed of the processor.

QUESTION: 7

The pipeline bubbling is a method used to prevent data hazard and structural hazards. 

Solution:

Answer: a
Explanation: The periods of time when the unit is idle is called as Bubble.

QUESTION: 8

_____ method is used in centralized systems to perform out of order execution.

Solution:

Answer: b
Explanation: In a scoreboard, the data dependencies of every instruction are logged. Instructions are released only when the scoreboard determines that there are no conflicts with previously issued and incomplete instructions.

QUESTION: 9

The algorithm followed in most of the systems to perform out of order execution is ______

Solution:

Answer: a
Explanation: The Tomasulo algorithm is a hardware algorithm developed in 1967 by Robert Tomasulo from IBM. It allows sequential instructions that would normally be stalled due to certain dependencies to execute non-sequentially (out-of-order execution).

QUESTION: 10

The problem where process concurrency becomes an issue is called as ______

Solution:
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