Starting from Layer $4,$ what are the PDUs in each layer called as they undergo encapsulation?

$-$What is the command used to establish a static route on a router?

How do you do this?

$-$What command is used to configure ip address on an interface?

Which Administrative Distance is the most reliable and which is the least reliable?

$-$What are the types of routes set up on a router?

$-$What are IGPs and EGPs used for?

$-$When does a frame change?

$-$What type of routing protocols are known to route by "rumor"

$-$What is an autonomous system and what makes it important?

$-$What do you understand by static and dynamic routing? And when would you want to use each of them?

What is convergence? Why do network admins care about it$?$

$-$What are some ways routing loops can be reduced in distance vector routing?

$-$What do you understand by pinhole congestion?