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Computer Architecture and Pipeline Design Quiz

5 Questions

1 Views

Computer Architecture and Pipeline Design Quiz

Created by

@DelightedRhodolite

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Questions and Answers

What is a disadvantage of using multiple pipelines in a simple pipeline system?

Improved accuracy in fetching instructions

Contention delays for access to registers and memory (correct)

Faster resolution of branch decisions

Reduced complexity in handling branch instructions

What problem arises when additional branch instructions enter the pipeline before the original branch decision is resolved in a system with multiple pipelines?

Faster execution of branch instructions

Each additional branch instruction needs its own stream (correct)

Reduced contention delays for access to registers and memory

Improved efficiency in handling branch instructions

What is the purpose of prefetching the target of a conditional branch in a pipeline system?

To reduce the number of pipeline streams needed

To save time by fetching the target in advance (correct)

To replicate the initial portions of the pipeline

To increase contention delays for access to memory

Which machines are examples of systems with two or more pipeline streams, as mentioned in the text?

<p>IBM 370/168 and IBM 3033</p> Signup and view all the answers

Why does a simple pipeline suffer a penalty for a branch instruction?

<p>It must choose one of two instructions to fetch next and may make the wrong choice</p> Signup and view all the answers

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