To send same bit sequence, NRZ encoding require
Same clock frequency as Manchester encoding
Half the clock frequency as Manchester encoding
Twice the clock frequency as Manchester encoding
A clock frequency which depend on number of zeroes and ones in the bit sequence
Question 1 Explanation:
If there are n devices (nodes) in a network, what is the number of cable links required for a fully connected mesh and a star topology respectively
n(n-1)/2 , n-1
Question 2 Explanation:
In networking terminology UTP means
Uniquitous teflon port
Uniformly terminating port
Unshielded twisted pair
Unshielded T-connector port
Question 3 Explanation:
Physical topology of FDDI is?
None of the above
Question 4 Explanation:
Bit stuffing refers to
inserting a 0 in user stream to differentiate it with a flag
inserting a 0 in flag stream to avoid ambiguity
appending a nipple to the flag sequence
appending a nipple to the use data stream
Question 5 Explanation:
How many characters per sec (7 bits + 1 parity) can be transmitted over a 2400 bps line if the transfer is synchronous ( 1 start and 1 stop bit)?
Question 6 Explanation:
What frequency range is used for microwave communications, satellite and radar?
Low frequency: 30 kHz to 300 kHz
Medium frequency: 300 kHz to 3 MHz
Super high frequency: 3000 MHz to 30000 MHz
Extremely high frequency: 30000 kHz
Question 7 Explanation:
A T-switch is used to
Control how messages are passed between computers
Echo every character that is received
Transmit characters one at a time
Rearrange the connections between computing equipments
Question 8 Explanation:
Consider a 50 kbps satellite channel with a 500 milliseconds round trip propagation delay. If the sender wants to transmit 1000 bit frames, how much time will it take for the receiver to receive the frame?
Question 9 Explanation:
In the Ethernet, which field is actually added at the physical layer and is not part of the frame.
Question 10 Explanation:
There are 10 questions to complete.