UNIX Programming and Technical

Q. What are data structures that are used for Demand Paging?

A. Kernel contains 4 data structures for Demand paging. They are,
Page table entries,
Disk block descriptors,
Page frame data table (pfdata),
Swap-use table.

Read Solution (Total 0)

UNIX Other Question

Q. What is called a page fault?

A. Page fault is referred to the situation when the process addresses a page in the working set of the process but the process fails to locate the page in the working set. And on a page fault the kernel updates the working set by reading the page from the secondary device. Q. What are the bits that support the demand paging?

A. Valid, Reference, Modify, Copy on write, Age. These bits are the part of the page table entry, which includes physical address of the page and protection bits