Now suppose packet switching is used. Why will there be essentially no queuing delay before the link if two or fewer users transmit at the same time? Why will there be queuing delay if three users transmit at the same time? Be brief (2 sentences at most for each question).

Suppose with packet switching, there are three users. Find the probability that at any given time, all three users are transmitting simultaneously

Processing Delay, Queuing Delay, Transmission Delay, Propagation Delay, Throughput and Loss

1.3-2 Packet switching versus circuit switching (1).  Which of the characteristics below are associated with the technique of packet switching? Select all correct answers. [Hint: more than one of the answers is correct].Group of answer choicesThis technique is used in the Internet.Resources are used on demand, not reserved in advance.Reserves resources needed for a call from source to destination.Data may be queued before being transmitted due to other user’s data that’s also queueing for transmission.Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM) are two approaches for implementing this technique.This technique was the basis for the telephone call switching during the 20th century and into the beginning of this current century.Congestion loss and variable end-end delays are possible with this technique.

Explain various delay which are occur in data packet transmission.

Suppose a number of users share a 4 Mbps link. Also, suppose that each user transmits continuously at 2 Mbps when transmitting, but each user transmits only 20% of the time.When circuit switching is used, how many users can be supported? No explanation is required.