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

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

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Trojan-Horse programs

usually are immediately discovered
are hidden programs that do not show up on the system
are legitimate programs that allow unauthorized access
do not usually work
None of these

ANSWER DOWNLOAD EXAMIANS APP