Operating System (OS)
A form of code that uses more than one process and processor, possibly of different type, and that may on occasions have more than one process or processor active at the same time, is known as

time sharing
multithreading
multiprogramming
broadcasting
None of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Data encryption

is mostly used by financial networks
is mostly used by public networks
None of these
is not necessary, since data cannot be intercepted
cannot be used by private installations

ANSWER DOWNLOAD EXAMIANS APP