1) Which of the following is NOT true?A. Traditional packet switching is likely to involve more end-to-end retransmissions than fast packet switching.B. Traditional packet switching is likely to have higher overhead due to node processing delays than fast packet switching.C. On a reliable network with a low bit error rate, fast packet switching is likely to have higher throughput than traditional packet switching.2.Which of the following is NOT true? Student ResponseA. The DS-0 transmission rate is 64 kbps.B. A T1 circuit can carry 24 PCM or 48 PCM voice signals.C. A DS-1 frame has 30 8-bit DS-0 channels.D. A T1 circuit has a transmission rate of 1.544 Mbps3. Which of the following is NOT true?A. An OC-1 circuit can carry 28 DS-1s.B. An STS-1 frame has 9 rows and 90 columns, and each column is 1 octet wide. C. An STS-3 frame has 27 rows and 90 columns.D. 8,000 frames are transmitted per second on an OC-3 circuit.4.If each of 8 secondary stations on a multipoint link is polled once per cycle using roll-call polling, how many primary-secondary propagation delays will contribute to the polling cycle time? Student ResponseA. 2B. 8C. 9 D. 165. Which of the following is NOT true?A. FDM allows a high capacity analog circuit to carry multiple signals.B. A TDM channel contains one cycle of time slots.C. If terminals A, B, and C are sharing a circuit using TDM and A’s data rate is twice that of B and C, then A would be assigned 2 time slots per cycle, and B and C would be assigned 1 time slot each.D. Inverse multiplexing allows 1 high speed signal to be transmitted over multiple lower speed circuits.