Packet switching

Question 1

packet switch support 2 services ( 2 ways )

Answer 1

• Connection oriented ( virtual circuit )

- Connection Less ( Datagram )

Question 2

Explain connection oriented

Answer 2

It’s router have interface means incoming and out coming ports
There must not be any connection between sender and receiver and data communication must be established in virtual or logical path.
When A send request to connect B,a virtual bath established
Then networks search best path- routing

Question 3

advantages Of virtual circuit

Answer 3

1. information will be received in the same order they sent off
2. Data never lost means Reliable data exchange

Question 4

Where do you implement virtual circuit

Answer 4

Add the edge of the network in the end system

Question 5

throwbacks:

Answer 5

that arrived with delay

‏الفترة متغيرة حسب الضغط على الشبكة

Question 6

what’s path a virtual c used

Answer 6

First bucket goes as reserves resources from the subsequent packets which as a result follow the same path for the whole connection time

Question 7

The packet contains of :

Answer 7

Data + control info

Question 8

Datagram is

Answer 8

When data is divided into small bases and is full occupied from source to destination

Question 9

Virtual circuit description

Answer 9

And networks that provide only a connection service at the network layer

Question 10

What’s bath buckets used in Datagram

Answer 10

All packets are free to go to any path intermediate router which is decided on the go by dynamically changing router tables and routers