Which of the following delay is faced by the packet in travelling from one end system toanother?

In the context of data networking, packets traveling from one end system to another face several types of delays. The main types of delays encountered include:

1. Transmission Delay: This is the amount of time required to push all of the packet’s bits into the link. This delay is a function of the packet’s length and the transmission rate of the link (i.e., the bandwidth). It can be calculated as the size of the packet divided by the transmission rate (bits per second).

2. Propagation Delay: Once a bit has been transmitted, it needs to propagate through the medium until it reaches the receiver. Propagation delay is the time it takes for a signal to travel from the sender to the receiver. This delay depends on the physical length of the medium (e.g., cable, fiber) and the propagation speed of the medium, which is typically about two-thirds the speed of light in vacuum for electromagnetic signals.

3. Queueing Delay: When packets arrive at a router or switch, they might need to wait in queue before they can be processed due to the router serving multiple packets concurrently. Queueing delay varies significantly with the network’s congestion level; more congestion means more delay.

4. Processing Delay: This is the time needed to examine the packet’s header and determine where to direct the packet. This includes time taken for error checking and other processing tasks. Processing delay is typically very small compared to other delays.

So, to succinctly answer your question, the delays