Operating System (OS)
The Memory Address Register

contains the address of the memory location that is to be read from or stored into.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
is a hardware memory device which denotes the location of the current instruction being executed.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
None of these

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
Data encryption

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

ANSWER DOWNLOAD EXAMIANS APP

Operating System (OS)
File record length

depends upon the size of the file
Should always be variable
should be chosen to match the data characteristics
None of these
should always be fixed

ANSWER DOWNLOAD EXAMIANS APP