Operating System (OS)
The function(s) of file system is (are):

All of these
to provide for long and short term storage of files with appropriate economic tradeoffs.
to provide complete file naming freedom to the users and to permit controlled sharing of files
to provide security against loss of information due to system failure
None of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
A public key encryption system

None of these
allows only the correct receiver to decode the data
allows only the correct sender to decode the data
does not encode the data before transmitting it
allows anyone to decode the transmission

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Feed back queue

are used to favor real-time tasks
None of these
require manual intervention to implement properly
are very easy to implement
dispatch tasks according to execution characteristics

ANSWER DOWNLOAD EXAMIANS APP