Module 4: Quiz 2 Gururaj Surampalli

How can cache performance be improved?

• Increasing cache size

• Using a higher associativity

• Reducing block size

• Implementing efficient replacement algorithms

Which levels are part of the memory hierarchy?

• Registers

• Cache

• Main memory

• Secondary storage

Which protocols are used to maintain cache coherence in multiprocessor systems?

• MESI (Modified, Exclusive, Shared, Invalid)

• MSI (Modified, Shared, Invalid)

• MOESI (Modified, Owner, Exclusive, Shared, Invalid)

• MEI (Modified, Exclusive, Invalid)

What are the advantages of using virtual memory?

• Increases available memory

• Enables multi-tasking

• Provides memory protection

• Reduces context switching time

Which of the following are page replacement algorithms in virtual memory systems?

• Least Recently Used (LRU)

• First-In-First-Out (FIFO)

• Optimal Page Replacement

• Clock Algorithm

Which techniques are used for interrupt prioritization?

• Fixed priority

• Rotating priority

• Dynamic priority

• Round-robin scheduling

Which of the following are modes of DMA transfer?

• Burst mode

• Cycle stealing mode

• Transparent mode

• Block mode

Which mechanisms are typically used for bus arbitration?

• Polling

• Handshaking

• Priority arbitration

• Token ring

Which of the following policies deal with cache write misses?

• Write-allocate

• No-write-allocate

• Write-through

• Write-back

What are common cache replacement algorithms?

• Least Recently Used (LRU)

• First-In-First-Out (FIFO)

• Random replacement

• Optimal replacement