Q. Recall that Belady’s anomaly is that the pages-fault rate may increase as the number of allocated frames increases. Now consider the following statements:
S1: Random page replacement algorithm (where
a page chosen at random is replaced)
suffers from Belady’s anomaly.

S2: LRU page replacement algorithm suffers
from Belady’s anomaly .
Which of the following is CORRECT?

View solution

Q. The ……………. Determines when a page should be brought into main memory.

View solution

Q. With …………………. A page is written out to secondary memory only when it has been selected for replacement.

View solution

Q. Which of the following statements is false ?

View solution

Q. Thrashing can be avoided if

View solution

Q. Fragmentation of the file system

View solution

Q. The memory allocation scheme subject to "external" fragmentation is

View solution

Q. Which of the following statements is false?

View solution

Q. If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is

View solution

Q. In which of the storage placement strategies a program is placed in the largest available hole in the main memory?

View solution

Q. The problem of thrashing is affected significantly by:

View solution

Q. In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?

View solution

Q. Which policy replace a page if it is not in the favoured subset of a process's pages?

View solution

Q. The function(s) performed by the paging software is (are)

View solution