Computer Networking
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to

0.991
None of these
0.009
0.999
0.003

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Carrier is

a continuous frequency capable of being modulated or impressed with a second signal
a collection of interconnected functional units that provides a data communications service among stations attached to the network
One or more conductors that serve as a common connection for a related group of devices
the condition when two or more sections attempt to use the same channel at the same time
None of these

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Terminals are required for

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

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
Error rate is

a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
an error-detecting code based on a summation operation performed on the bits to be checked.
a check bit appended to an array of binary digits to make the sum of all the binary digits.
None of these
the ratio of the number of data units in error to the total number of data units

ANSWER DOWNLOAD EXAMIANS APP