Operating System (OS)
Trojan-Horse programs

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

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Link encryption

is used only to debug
is less secure than end-to-end encryption
can not be used in a public network
is more secure than end-to-end encryption
None of these

ANSWER DOWNLOAD EXAMIANS APP