Computer Networking
X.21 is

a very common bit-oriented data link protocol issued by ISO
a method of determining which device has access to the transmission medium at any time
network access standard for connecting stations to a circuit-switched network
a method access control technique for multiple-access transmission media
None of these

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Terminals are required for

realtime, batch processing, and timesharing
realtime, distributed processing, and manager inquiry
realtime, timesharing, and distributed processing
realtime, timesharing, and message switching
None of these

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

the method of determining which device has access to the transmission medium at any time.
a medium access control technique for multiple access transmission media
a form of TDMA in which circuit switching is used to dynamically change the channel assignments
None of these
All of these

ANSWER DOWNLOAD EXAMIANS APP