Question Four

Deadline: Sunday 22/11/2020 @ 23:59
Computer Networks

IT210

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College of Computing and Informatics

Question One
Learning Outcome(s):

Explain networking principles, models and technologies.

1.5 Mark

A transport-layer protocol provides two types of services: connectionless and connection-oriented. In your own words, explain both services and discuss the characteristic of each one ?

Question Two
1 Mark

Learning Outcome(s):

Illustrate network protocols including Transport Control Protocol / Internet Protocol.

Characteristics

The Transport-layer Protocol

· It is a simple connectionless protocol with neither flow nor error control.

· The size of the send window must be less than 2m; the size of the receive window is always 1.

· Each time a single packet is lost or corrupted, the sender resends all outstanding packets, even though some of these packets may have been received safe and sound but out of order.

· Both the sender and the receiver use a sliding window of size 1. The sender sends one packet at a time and waits for an acknowledgment before sending the next one.

There are several Transport Layer Protocols such as Simple Protocol, Stop-and-Wait protocol, Go-Back-N protocol, Selective-Repeat protocol. Write the name of The Transport-layer Protocol for each of the characteristics listed in the following table :

Question Three
1 Marks

Learning Outcome(s):

Demonstrate protocol configuration, network-addressing schemes and analyze packet transmission.

In your own words, explain the difference between Distance-vector Routing Protocol and Link State Routing Protocol?

Question Four
1.5 Mark

Learning Outcome(s):

Demonstrate protocol configuration, network-addressing schemes and analyze packet transmission.

Illustrate network protocols including Transport Control Protocol / Internet Protocol.

Assume that there are four routers (R1, R2, R3 and R4) and four hosts (H1, H2, H3 and H4) in a network (N1). H1 sends email to an instructor H3 at SEU.EDU.SA. (192.168.1.1) and the router path is R1, R3, R2 and R4, but the H3 host find a parameter problem and it dropped the packet.

Explain how ICMP protocol can be used as a debugging tool and draw a diagram to illustrates the traceroute process for this scenario?