Physical Layer


Q1.

Bit stuffing refers to
GateOverflow

Q2.

In the Ethernet, which field is actually added at the physical layer and is not part of the frame.
GateOverflow

Q3.

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?
GateOverflow

Q4.

Data is transmitted continuously at 2.048 Mbps rate for 10 hours and received 512 bits errors. What is the bit error rate?
GateOverflow

Q5.

To send same bit sequence, NRZ encoding require
GateOverflow

Q6.

IEEE 1394 is related to
GateOverflow

Q7.

The encoding technique used to transmit the signal in giga ethernet technology over fiber optic medium is
GateOverflow

Q8.

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)?
GateOverflow

Q9.

One SAN switch has 24 ports. All 24 supports 8 Gbps Fiber Channel technology. What is the aggregate bandwidth of that SAN switch?
GateOverflow

Q10.

Assume that each character code consists of 8 bits. The number of characters that can be transmitted per second through an asynchronous serial line at 2400 baud rate, and with two stop bits is
GateOverflow