Question 1 of 25
Hints left: 3
Q1
Which network has connectivity range up to 10 meters?
Q4
The ________ measures the number of lost or garbled messages as a fraction of the total sent in the sampling period.
Q5
Which of the following is a wrong example of network layer?
Q6
The topology with highest reliability is:
Q7
For data communications to occur, the communicating devices must be part of a communication system made up of a combination of?
Q8
In session layer, during data transfer, the data stream responsible for the "control" purpose (i.e control of the session layer itself) is
Q9
Which of the following ISO level is more closely related to the physical communications facilities?
Q10
The method of communication in which transmission takes place in both directions, but only one direction at a time is called
Q11
How many Character per sec(7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?
Q12
In a broad Sense, a railway track is an example of
Q14
Maximum data rate of a channel for a noiseless 3-kHz binary channel is
Q15
Start and stop bits are used in serial communication for
Q16
Error detection at the data link level is achieved by
Q17
Data communications system depends on four fundamental characteristics
Q18
Correct method for full duplex mode of communication is:
Q19
which of the following is not a field in the Ethernet Message packet?
Q20
A high speed communication equipment typically would not be needed for
Q21
The number of cross point needed for 10 lines in a cross point switch which is full duplex in nature and there are no self connection is
Q22
The Network topology that supports bi-directional links between each possible node is
Q23
Unmodulated signal coming from a transmitter is know as
Q24
A terminal multiplexer has six 1200 bps terminals and 'n' 300bps terminals connected to it. The outgoing line is 9600bps. What is the maximum value of n?
Q25
Which one of the following network uses dynamic or adaptive routing?