Operating System (OS)
An incremental backup

saves only files that have recently changed
uses more tapes
None of these
should be done each month
saves all files

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
The term 'polling' in a computer means a process by which a computer system

multiplexes the inputs and updates the memory accordingly
detects/corrects errors
decides correct alternative by analysing several ones
inquires to see if a terminal has any transaction to send
None of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Thrashing can be avoided if

the speed of I/O processor is increased
the pages, belonging to the working set of the programs, are in main memory
the speed of CPU is increased
All of these
None of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Uniform Symbols Table

a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
None of these
a permanent table which lists all key words and special symbols of the language in symbolic form
consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
contains all constants in the program

ANSWER DOWNLOAD EXAMIANS APP