List of top Data Science A.I Cyber Security and Computer Sci. Questions on Operating Systems

Deallocation of stack of thread and register contexts will take place.

Match List I with List II.

List I	List II
A. Segmentation	I. Memory is viewed as a collection of logical address spaces.
B. Unsegmented paged memory	II. Virtual address is the same as the physical address.
C. Segmented unpaged memory	III. Memory is viewed as a paged linear address space.
D. Segmented paged memory	IV. Manages the allocation of memory within a partition.

Consider the following statements and choose the correct one:
(A) Segmentation is a memory management scheme that supports user view of memory.
(B) In paging, physical memory is broken into fixed-sized blocks called pages.
(C) In paging, logical memory is also broken into blocks of the same size called frames
Choose the correct answer from the options given below:

Match List I with List II

LIST I	LIST II
(A) Disk scheduling	(I) Round robin
(B) Batch processing	(II) SCAN
(C) Time sharing	(III) LIFO
(D) Interrupt processing	(IV) FIFO

Choose the correct answer from the options given below:

Consider a logical address space of eight pages of 1024 words each, mapped into a physical memory of 32 frames. How many bits are there in the logical address and in the physical address, respectively?

Consider the following set of processes with the length of the CPU burst time given in milliseconds:

The processes are assumed to have arrived in order P1, P2, P3, P4, P5 all at time 0. What is the waiting time of process P4 for Shortest Job First (SJF), non-preemptive priority scheduling, and Round Robin (Quantum=1) scheduling algorithms respectively?

Consider the following statements and choose the correct one:
(A) Job schedulers select processes from the pool and load them into memory for execution.
(B) Short term scheduler selects among the processes that are ready to execute and allocates the CPU to one of them.
(C) Medium term scheduler increases the degree of multiprogramming.
Choose the correct answer from the options given below: