Objective-type questions System Software and Operating System - Part-08 | 10 Question and Answer

 

Question: Recognition of basic syntactic constructs through reductions, this task is performed by

A.    Lexical analysis

B.     Syntax analysis

C.    Semantic analysis

D.    Structure analysis

Answer: B. Syntax analysis

 

 

Question: A grammar for a programming language is a formal description of

A.    Syntax

B.     Semantics

C.    Structure

D.    Code

Answer: C. Structure

 

 

Question: ___________ is a technique of temporarily removing inactive programs from the memory of computer system

A.    Swapping

B.     Spooling

C.    Semaphore

D.    Scheduler

Answer: A. Swapping

 

 

Question: ________ is a technique of improving the priority of process waiting in Queue for CPU allocation

A.    Starvation

B.     Ageing

C.    Revocation

D.    Relocation

Answer: B. Ageing

 

 

Question: ________ is the time required by a sector to reach below read/write head.

A.    Seek Time

B.     Latency Time

C.    Access time

D.    None

Answer: B. Latency Time

 

 

Question: Which of the following is most general phase structured grammar?

A.    Context – Sensitive

B.     Regular

C.    Context – Free

D.    None of the above

Answer: A. Context – Sensitive

 

 

Question: File Record Length

A.    Should Always be fixed

B.     Should Always be variable

C.    Depends upon the size of file

D.    Should be chosen to match the data characteristics.

Answer: D. Should be chosen to match the data characteristics.

 

 

Question: A public key encryption system

A.    Allows only the correct receiver to decode the data.

B.     Allows only one to decode the transmission.

C.    Allows only the correct sender to decode the data.

D.    Does not encode the data before transmitting it.

Answer: A. Allows only the correct receiver to decode the data.

 

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