adplus-dvertising
frame-decoration

Question

When a page is selected for replacement, and its modify bit is set :

a.

the page is clean

b.

the page has been modified since it was read in from the disk

c.

the page is dirty

d.

the page has been modified since it was read in from the disk & page is dirty

Posted under Operating System

Answer: (d).the page has been modified since it was read in from the disk & page is dirty

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. When a page is selected for replacement, and its modify bit is set :

Similar Questions

Discover Related MCQs

Q. The aim of creating page replacement algorithms is to :

Q. A FIFO replacement algorithm associates with each page the _______

Q. Optimal page – replacement algorithm is :

Q. Optimal page – replacement algorithm is difficult to implement, because :

Q. LRU page – replacement algorithm associates with each page the ______

Q. The two methods how LRU page replacement policy can be implemented in hardware are:

Q. When using counters to implement LRU, we replace the page with the :

Q. In the stack implementation of the LRU algorithm, a stack can be maintained in a manner :

Q. There is a set of page replacement algorithms that can never exhibit Belady’s Anomaly, called :

Q. The essential content(s) in each entry of a page table is / are :

Q. The minimum number of page frames that must be allocated to a running process in a virtual memory environment is determined by :

Q. The reason for using the LFU page replacement algorithm is :

Q. The reason for using the MFU page replacement algorithm is :

Q. The implementation of the LFU and the MFU algorithm is very uncommon because :

Q. The minimum number of frames to be allocated to a process is decided by the :

Q. When a page fault occurs before an executing instruction is complete :

Q. Consider a machine in which all memory reference instructions have only one memory address, for them we need atleast _____ frame(s).

Q. The maximum number of frames per process is defined by :

Q. The algorithm in which we split m frames among n processes, to give everyone an equal share, m/n frames is known as :

Q. The algorithm in which we allocate memory to each process according to its size is known as :