The Demand Fetch mechanism of a Virtual Memory Management system fetches a page

Question

The Demand Fetch mechanism of a Virtual Memory Management system fetches a page when_____. 1. A page fault occurs 2. The process runs out of memory 3. A page interruption occurs 4. The working set is too large The Replacement mechanism of a Virtual Memory Management system that depends on a use bit and a modified bit is the ____ mechanism. 1. Least Recently Used 2. Round Robin 3. First in first out 4. Locality The concept that a process "runs best" from a specific subset of its pages is the concept of_____. 1. Working Set Address 2. Locality 3. Local 4. Proximal Usage A UNIX file is treated as _____. 1. A set of fixed size records 2. A hierarchical directory 3. A sequential stream of bytes 4. A fixed size structure

Explanation / Answer

17.

The demand fetch mechanism of a virtual Memory management system fetches a page when page fault occurs.

Option 1 is correcrt.

18.

The Replacement mechanism of a Virtual Memory Management system that depends on a use bit and a modified bit is the mechanism is least recently used.

Option 1 is correct.

19.

The concept that process runs best from a specific subset of its page Working set address.

Option 1 is correct.

20.

A Unix file is treated as hierarichal directory.

Option 2 is coreect choice.

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