[Solved]-Question 1 Hardware Mechanism Essential Implementing Paging Based Virtual Memory Direct Me Q37164195

QUESTION 1

1. Which hardware mechanism is essential for implementingpaging-based virtual memory?

Direct memory access (DMA).

Timer.

Translation lookaside buffer (TLB).

Exceptions.

                      

QUESTION 2

1. Put the page replacement steps in the right order.

                                                        -1.2.3.4.5.6.

Locate the missing page in the secondary storage.

                                                        -1.2.3.4.5.6.

Replace the victim page with the replacement page and update thepage table.

                                                        -1.2.3.4.5.6.

Locate the victim page in the RAM and save it, if necessary.

                                                        -1.2.3.4.5.6.

Identify the logical (virtual) address that caused thefault.

                                                        -1.2.3.4.5.6.

Restart the instruction that caused the fault.

                                                        -1.2.3.4.5.6.

Invoke the page fault handler.

QUESTION 3

1. Which POSIX function protects a page in the RAM from beingreplaced? (You may need to read respective man pages.)

mlock()

msync()

mmap()

mprotect()

Expert Answer

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Answer to QUESTION 1 Which hardware mechanism is essential for implementing paging-based virtual memory? Direct memory access (DMA… . . .