Modul 4- Quiz By Gururaj Surampalli

Which of the following methods are used to access I/O devices?

• Memory-mapped I/O

• Programmed I/O

• Interrupt-driven I/O

• Direct Memory Access (DMA)

What components are part of interrupt hardware?

• Interrupt request line

• Interrupt vector table

• Programmable interrupt controller

• Direct memory access controller

How can interrupts be enabled or disabled in a system?

• Using CPU instruction

• Setting a flag in the interrupt controller

• Changing a register value

• Through software configuration

What mechanisms are used to handle interrupts from multiple devices?

• Polling

• Daisy chaining

• Vector interrupt system

• Priority interrupt controller

What are the characteristics of Direct Memory Access (DMA)?

• Allows direct transfer of data between memory and I/O device

• Requires CPU intervention for each byte transfer

• Increases system efficiency

• Bypasses the CPU during data transfer

Which of the following are common bus arbitration techniques?

• Daisy chain arbitration

• Centralized parallel arbitration

• Distributed arbitration

• Token passing

Which statements are true regarding the relationship between speed, size, and cost of memory systems?

• Faster memory is more expensive

• Larger memory size reduces speed

• Cheaper memory has lower speed

• Higher speed memory is typically smaller in size

Which of the following are cache mapping functions?

• Direct mapping

• Associative mapping

• Set-associative mapping

• Virtual mapping

What factors affect cache hit and miss rates?

• Cache size

• Block size

• Mapping function

• Replacement policy

Which of the following are common write policies in cache memory?

• Write-through

• Write-back

• Write-once

• Write-allocate