Computer Networks and Internet

End systems access the Internet through ___________________.

It controls the sending and receiving of information within the Internet.

It is the sequence of communication links and packet switches traversed by a packet from the sending end system to the receiving end system.

It specifies how a program running on one end system asks the Internet infrastructure to deliver data to a specific destination program running on another end system.

A protocol defines the format and the order of messages exchanged between two or more communicating entities, as well as the actions taken on the receipt of a message or other event.

host = end system

Hosts are sometimes further divided into two categories: host and end system.

Physical media fall into two categories: guided media and unguided media.

It occurs when the arriving packet or one of the already-queued packets will be dropped.

It maps destination addresses (or portions of the destination addresses) to that router’s outbound links.

Which of the following is not a type of delay?

La/R often plays an important role in estimating the extent of the queuing delay. What is La/R?

With no place to store such a packet, a router will drop that packet; that is, the packet will be __________.

It is also known as network-layer packets.

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