Computer Networks and Internet

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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.

packet loss

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

forwarding table

Which of the following is not a type of delay?

Traffic 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.

Cookies are used in the following, except:

Password Protection

Test your knowledge of the protocols and systems used by end systems to access the Internet and control the sending and receiving of information. This quiz covers the sequence of communication links, packet switches, and the format and order of messages exchanged between communicating entities.

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