QUESTION $1$Q$2$: Consider sending a packet from a source host to adestination host over a fixedroute. List the delay components in the end $-$ to $-$ end delay.?QUESTION $2$Q$3$ : What is transmission delav $($ dtrans$)$ when a router sendsL $=4\mathrm{.}0$ mega $-$ byte packet overa R $=20$ Mbps link?QUESTION $3$A clint requests $10$ objects from a server. Write the formulae for the response time for persistent HTP$?($Note: use RTT for round trip time and Trans for Transmission time required for an object.Assume that all objects have same size$)$QUESTION $4$Q$1$: Suppose users share a $2$Mbps link. Also suppose each user transmits continuously at $1$Mbps when transmitting,$*$ When circuit switching is used, how many users can be supported?$*$ For the remainder of this problem, suppose packet switching is used. Why will there be essentially no queuing delay before the link if two userstransmit at the same time? Why will there be a queuing delay if three users transmit at the sametime?QUESTION $6$What information is used by aprocess running on one host to identify a process running on another host?