Segmentation and Paging MCQ Quiz – Objective Question with Answer for Segmentation and Paging

The memory protection unit has many advantages over the other units. It can reduce the chip size, cost, and power consumption.

The memory management unit can be used as a protection unit by disabling the address translation that is, the physical address and the logical address are the same.

If memory access from the software does not access the correct data, an error signal is generated which will start a supervisor-level software for the decision.

Different tasks assign their own address space and whenever a task access memory outside its own address space, a segmentation fault result and which in turn results in the termination of the offending application.

The burst interfacing has special memory interfaces which include special address generation and data latches that help in the high performance of the processors. It takes the advantages of both the nibble mode memories and paging.

The burst interfaces use the burst fill technique in which the processor will access four words in succession, which fetches the complete cache line or written out to the memory.

The speed of the memory can be improved by the page mode or the static column memory which offers faster access in a single cycle.

The burst interfaces reduce the clock cycles. For fetching four words with a three-clock memory, it will take 12 clock cycles but in the burst interface, it will only take five clocks to access the data.

In the burst interface, the first access of the memory address requires two clock cycles and a single cycle for the remaining memory address.

In the burst interface, the address is supplied only for the first access and not for the remaining accesses. External logic is required for the additional addresses for the memory interface.