Q4. Because block size is always the same in synchronous transmission, the recei

Question

Q4. Because block size is always the same in synchronous transmission, the receiver always knows where one block ends and another begins.
   a. true
   b. false

Q7. As bit transmission speed is increased, the duration of each bit in the signal, known as the ____, decreases.
   a. bit time
   b. overhead
   c. block time
   d. modulation time

The VoIP user perceives ____ as periods of silence mixed with overlapped voice signals.
   a. jitter
   b. latency
   c. fragmentation
   d. overrun

Q14. Guaranteeing service quality is a simple matter in most IP networks.
   a. true
   b. false

Q15. A CPU BRANCH instruction requires two operands, one containing the address of another instruction and one containing the address of the previous instruction.
   a. true
   b. false

Explanation / Answer

Answer:

4) TRUE, this is because block length is fixed in synchronous transmission.It is about 1500B in ethernet.It uses an internal clock for synchronisation.So end of block is known by clock.

7) It is actually bit duration, here it is bit time

---- The right option is jitter

14) False, because IP is datagram based.We can loose packet so service is unreliable

15) False, Branch condition has only one operand i,e and address if a particular condition is fullfilled or not.

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