Operating System (OS)
Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and

buffer overflow
hold and wait
None of these
deadlock avoidance
race around condition

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Uniform Symbols Table

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
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

ANSWER DOWNLOAD EXAMIANS APP