Welcome to Operating System Quiz, Randomly Selected !!

Question 1. The degree of Multiprogramming is controlled by

CPU Scheduler

Context Switching

Long-term Scheduler

Medium term Scheduler

Question 2. The Banker's algorithm is used

to prevent deadlock in operating systems

to detect deadlock in operating systems

to rectify a deadlocked state

none of the above

Question 3. The solution to Critical Section Problem is : Mutual Exclusion, Progress and Bounded Waiting

The statement is false

The statement is true

The statement is contradictory

None of the above

Question 4. _________ page replacement alogorithm suffers from Belady's anamoly.

LRU

MRU

FIFO

LIFO

Question 5. A binary semaphore

has the values one or zero

is essential to binary computers

is used only for synchronisation

is used only for mutual exclusion

Question 6. Which of the following is crucial time while accessing data on the disk?

Seek time

Rotational time

Transmission time

Waiting time

Question 7. Demand paged memory allocation

allows the virtual address space to be independent of the physical memory

allows the virtual address space to be a multiple of the physical memory size

allows deadlock to be detected in paging schemes

is present only in Windows NT

Question 8. In UNIX based systems,To build a modularized kernel, the kernel-headers and kernel-source packages must first be installed. Where will you find the kernel-headers and kernel-source

/usr/local

/usr/src/linux

/usr/sre/redhat

/usr/bin

Question 9. _________ is a high speed cache used to hold recently referenced page table entries a part of paged virtual memory

Translation Lookaside buffer

Inverse page table

Segmented page table

all of the above

Question 10. Which of the following file name extension suggests that the file is Backup copy of another file

TXT

COM

BAS

BAK