(A) Page fault
(B) Critical region
(C) Thrashing
(D) None of the above
Tag: Operating System
In a UNIX system __ system call can be used to request the operating system to memory map an opened file.
(A) mmap()
(B) nmap()
(C) mmapp()
(D) None of the Above
We want a page replacement algorithm with the __ page-fault rate.
(A) Lowest
(B) Highest
(C) Both of the above
(D) None of the above
In case of thrashing if CPU utilization is too low the operating system __ the degree of multiprogramming.
(A) Decrease
(B) Increases
(C) Both of the above
(D) None of the above
A__ is an integer variable that apart from initialization is accessible only through two standard atomic operations: wait and signal.
(A) Monitor
(B) Semaphore
(C) Critical section
(D) Critical region
In Resource Allocation Graph A ___ Pi →Rj indicates that process Pi may request resource Rj at some time in the future.
(A) Claim edge
(B) Request edge
(C) Assignment edge
(D) Allocation edge
In __ allocation scheme number of frames allocated to a process is proportional to its size.
(A) Proportional Allocation
(B) Fixed allocation
(C) Priority allocation
(D) None of the above
In pages segmentation the logical address is legal if d is __ segment length.
(A) < (less than)
(B) >(greater than)
(C) =(equal to)
(D) None of the above