1.One can interface with operating system by means of -------
A) Operating system call in a program
B) Operating system commands
C) Operating system process
D) Both by operating system call and operating system commands
Answer :- D) Both by operating system call and operating system commands
2. Which of the following is not type of processing ?
A) Serial
B) Network
C) Batch
D) Multiprogramming
Answer :- B) Network
3. Kernel is _____
A) A part of operating system
B) An operating system
C) A hardware
D) A register
Answer :- A) A part of operating system
4. UNIX operating system is based on ______
A) Language structure
B) Kernel approach
C) Virtual machine
D) Time sharing
Answer :- B) Kernel approach
5. A transition between two memory resident process in a memory resident process in amultiprograming system is called ______
A) Process switch
B) Mode switch
C) Transition switch
D) None of these
Answer :- A) Process switch
6. Round robin scheduling algorithm falls under category of _____
A) Preemptive scheduling
B) Non- preemptive scheduling
C) Sometime preemptive sometime non-preemptive
D) None of tehse
Answer :- A) Preemptive scheduling
7. Paging is a _______
A) Virtual memory
B) Memory management scheme
C) Allocation of memory
D) Deadlock prevention scheme
Answer :- B) Memory management scheme
8. The first version of UNIX was written by _____
A) Dennis Ritchie
B) Andrew S
C) Ken Thompson
D) None of these
Answer :- C) Ken Thompson
9. Chaining and Indexing are the strategies of ______
A) Contiguous allocation
B) Non-contiguous allocation
C) Partition allocation
D) Static allocation
Answer :- B) Non-contiguous allocation
10. Wasting of memory within a partition ,due to a difference in size of a partition and of the object resident within it is called _____
A) External fragmentation
B) Internal fragmentation
C) Compaction
D) Coalescing
Answer :- B) Internal fragmentation
11.Which of the following is an operating system call ?
A) CREATE
B) LINK
C) SYSTEM
D) All of these
Answer :- D) All of these
12.The primary job as the operating system of a computer is to
A) command resources
B) manage resources
C) provide utilities
D) be use friendly
Answer : - B) manage resources
13.Dirty bit for a page in a page table
A) helps avoid unnecessary writes on a paging device
B) helps maintain LRU information
C) allows only read on a page
D) none of these
Answer : - A) helps avoid unnecessary writes on a paging device
14. The term "operating system " means
A) a set of programme which controls computer working
B) the way a computer operator works
C) conversion of high language into machine code
D) the way a floppy disk drive operates
Answer :- A) a set of programme which controls computer working
15. Windows is a/an
A) operating system
B) user interface
C) operating environment
D) programming platform
Answer :- C) operating environment
16. When did IBM released teh first version of its Disk Operating System (DOS) version 1.0?
A) 1981
B) 1982
C) 1983
D) 1984
Answer :- A) 1981
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