Operating System (OS)
The disadvantages of "Compile and Go" loading scheme is (are):

None of these
All of these
it is necessary to retranslate the user's program deck every time it is run.
it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Uniform Symbols Table

None of these
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
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
a permanent table which lists all key words and special symbols of the language in symbolic form
contains all constants in the program

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP