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CS601 Data Communication Assignment No 1 Solution & Discussion Due Date:08-11-2012

Q. 1. Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases:  [2 x 6 = 12 Marks]

 

  1. Seven devices are connected through a ring topology.
  2. Six devices are connected through a dual ring topology.
  3. Four devices are connected through a mesh topology.
  4. Twelve devices are connected through a star topology (Note: Do not consider the hub failure).
  5. Fifteen devices are connected through a star topology and only the hub is failed.
  6. Eight devices are connected through a bus topology.

 

Note: Your answer for Q.1 should be in the same order as given in the question statements.

 

Q. 2. Suppose a small company wants to develop a computer network of 18 computers in its main office. Due to limited resources the company wants a network architecture where a single communication medium can be shared among all other nodes. Considering this scenario, you are required to suggest the suitable line configuration and name all the possible ways through which your suggested line configuration can be implemented. [3 Marks]

 

 

Note:

 

  • Assignment should be in your own wordings not copied from Internet, handouts or books.

 

  • Your answer should be “to the point”.

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CS601_Assignment#01_Solution

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Attached is the solution of this assignment...

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Q. 1. Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases:  [2 x 6 = 12 Marks]

 

1) Seven devices are connected through a ring topology.

Ans: In this case the whole network will go down because in ring topology failure of one computer affects whole network.

2) Six devices are connected through a dual ring topology.

Ans: Dual ring is based on channels so if one channel fails the 2nd channel will continue transmitting data. Suppose 3 computers are one channel and 3 on 2nd channel then failure of one computer will bring down only 1 channel and computers with it. 3 computers will go down in network and 3 will be working.

3) Four devices are connected through a mesh topology.

Ans: In mesh topology every computer is directly connected to another computer so, if one computer fails it will not affect the whole network. 3 devices will keep up the network.

4) Twelve devices are connected through a star topology (Note: Do not consider the hub failure).

Ans: In star topology we use a specialized device called the hub. If one computer fails then the remaining 11 will not be affected.

5) Fifteen devices are connected through a star topology and only the hub is failed.

Ans: Star topology fails and whole network goes down if network hub fails.

6) Eight devices are connected through a bus topology.

Ans: In bus topology if one computer fails then the remaining computers can still transmit data through backbone cable. 7 computers will be still functional.

 

Note: Your answer for Q.1 should be in the same order as given in the question statements.

 

Q. 2. Suppose a small company wants to develop a computer network of 18 computers in its main office. Due to limited resources the company wants a network architecture where a single communication medium can be shared among all other nodes. Considering this scenario, you are required to suggest the suitable line configuration and name all the possible ways through which your suggested line configuration can be implemented. [3 Marks]

 

Ans: Star topology is the best solution for the small company of 18 computers. In this scenario the network hub can connect all computers and all computers can share data and resources efficiently.  And above all this is the cheaper network topology.

Muhammad_Mansoor_Waqas gud keep it up & thanks 

CS601 Assignment 1 Solution

Attachments:

Assignment No. 1
Semester Fall 2012
Data Communication – CS601

Total Marks: 15
Due Date: 08-11-2012

 

 

Q. 1. Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases: [2 x 6 = 12 Marks]

1. Seven devices are connected through a ring topology.
2. Six devices are connected through a dual ring topology.
3. Four devices are connected through a mesh topology.
4. Twelve devices are connected through a star topology (Note: Do not consider the hub failure).
5. Fifteen devices are connected through a star topology and only the hub is failed.
6. Eight devices are connected through a bus topology.

Note: Your answer for Q.1 should be in the same order as given in the question statements.

Q. 2. Suppose a small company wants to develop a computer network of 18 computers in its main office. Due to limited resources the company wants a network architecture where a single communication medium can be shared among all other nodes. Considering this scenario, you are required to suggest the suitable line configuration and name all the possible ways through which your suggested line configuration can be implemented. [3 Marks]

SOLUTION:

Question 1 Solution:

1. Seven devices are connected through a ring topology.
Ans: disable all the network

2. Six devices are connected through a dual ring topology.
Ans: network traffic doesn’t effect

3. Four devices are connected through a mesh topology.
Ans: network traffic doesn’t effect

4. Twelve devices are connected through a star topology (Note: Do not consider the hub failure).
Ans: doesn’t affect the network. http://vustudents.ning.com/

5. Fifteen devices are connected through a star topology and only the hub is failed.
Ans: Network is affected.

6. Eight devices are connected through a bus topology.
Ans: Network is affected.

Question No. 2 Solution:

I do suggest multiple line configurations in this situation.

Note: Just take the idea & then make your own assignment, otherwise you will get zero marks!

http://vustudents.ning.com/

Q. 1.

 Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases:  [2 x 6 = 12 Marks]

 

  1. Seven devices are connected through a ring topology.
  2. Six devices are connected through a dual ring topology.
  3. Four devices are connected through a mesh topology.
  4. Twelve devices are connected through a star topology (Note: Do not consider the hub failure).
  5. Fifteen devices are connected through a star topology and only the hub is failed.
  6. Eight devices are connected through a bus topology.

 

Note: Your answer for Q.1 should be in the same order as given in the question statements.

Solution:

Q. 1. Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases:  [2 x 6 = 12 Marks]

 

1) Seven devices are connected through a ring topology.

Ans: In this case the whole network will go down because in ring topology failure of one computer affects whole network.

2) Six devices are connected through a dual ring topology.

Ans: Dual ring is based on channels so if one channel fails the 2nd channel will continue transmitting data. Suppose 3 computers are one channel and 3 on 2nd channel then failure of one computer will bring down only 1 channel and computers with it. 3 computers will go down in network and 3 will be working.

3) Four devices are connected through a mesh topology.

Ans: In mesh topology every computer is directly connected to another computer so, if one computer fails it will not affect the whole network. 3 devices will keep up the network.

4) Twelve devices are connected through a star topology (Note: Do not consider the hub failure).

Ans: In star topology we use a specialized device called the hub. If one computer fails then the remaining 11 will not be affected.

5) Fifteen devices are connected through a star topology and only the hub is failed.

Ans: Star topology fails and whole network goes down if network hub fails.

6) Eight devices are connected through a bus topology.

Ans: In bus topology if one computer fails then the remaining computers can still transmit data through backbone cable. 7 computers will be still functional.

 

Q. 2. Suppose a small company wants to develop a computer network of 18 computers in its main office. Due to limited resources the company wants a network architecture where a single communication medium can be shared among all other nodes. Considering this scenario, you are required to suggest the suitable line configuration and name all the possible ways through which your suggested line configuration can be implemented. [3 Marks]

Solution: I suggest Multiple line configuration in this situation. Star topology is the best solution for the small company of 18 computers. In this scenario the network hub can connect all computers and all computers can share data and resources efficiently.  And above all this is the cheaper network topology

 

 

CS601 ASSIGNMENT 1 IDEA SOLUTIONS SHARED BY DIFFERENT USERS

Attachments:

CS601 ASSIGNMENT 1 IDEA SOLUTIONS SHARED BY DIFFERENT USERS

 

Only take the idea and make ur own ,, don’t copy paste to get the good marks

 

Q. 1. Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases:  [2 x 6 = 12 Marks]

 

  • Seven devices are connected through a ring topology.

    Answer: disable all the network

 

  • Six devices are connected through a dual ring topology.

    Answer: network traffic doesn’t effect

  • Four devices are connected through a mesh topology.

 

    Answer: network traffic doesn’t effect

 

  • Twelve devices are connected through a star topology (Note: Do not consider the hub failure).

 

      Answer : doesn’t affect the network.

 

  • Fifteen devices are connected through a star topology and only the hub is failed.

    Answer: Network is affected.

  • Eight devices are connected through a bus topology.
  •  

    Answer:  Network is affected.       

 

Question No2

 

 Suppose a small company wants to develop a computer network of 18 computers in its main office. Due to limited resources the company wants a network architecture where a single communication medium can be shared among all other nodes. Considering this scenario, you are required to suggest the suitable line configuration and name all the possible ways through which your suggested line configuration can be implemented.


Answer No2:  my suggestion goes to multiple line configuration as per the above case

 

http://vustudents.ning.com/

Idea solution No2

Answer No1:

 

Seven devices are connected through a ring topology.

As the ring topology provides one way path for communication between devices in the ring, thus one node failure or breakage of cable isolate all the devices attached to ring from one another.

A: Six devices are connected through a dual ring topology.

In this case if one of the devices fails then we have two paths so called dual ring. The nodes communication will not be disturbed and the nodes will follow the second path and the device that fails or goes down will be disconnected from the network.

A: Four devices are connected through a mesh topology.

In mesh topology every node has a link with another nodes so if one device fails it will have no effect on the other (three) nodes except the one which fails.

A: Twelve devices are connected through a star topology (Note: Do not consider the hub failure).

If one of the devices fails then it will have no effect on other nodes and just this node will be disconnected from the network.

Fifteen devices are connected through a star topology and only the hub is failed.

When the hub fails the whole communication goes down and no device will now be able with other nodes.

Eight devices are connected through a bus topology.

In this case if the BUS backbone stops working the whole communication will goes down. However if one device fails. It will have no effect on other devices connected to the network

http://vustudents.ning.com/

ANSWER NO2:

 

In this case the spatially sharing system is best suitable and will provide the benefit of using the resources in a tactful manner and based on the needs. Bus topology can be used to provide a shared path over which the devices can communicate at lost cost. Only we need to have backbone cable, taps and drop tails that connect the nodes to the bus.

 

ANOTHER IDEA SOLUTION OF QUESTION NO 2

 

In the given situation we can use the following line configurations in which a single communication medium can be shared among all communication devices:-
• Bus Topology
• Star topology
• Ring topology
But the most suitable line configuration is bus topology because of the following characteristics
• Reduced cost
• Less amount of cabling
• No need of a central powerful server
• A single communication cable is needed that is shared among all other devices


 

IDEA SOLUTION OF QUESTION 1 BY ANOTHER STUDENT:

 

Question 1 Solution:

  • Seven devices are connected through a ring topology

Network will shuts down

 

  • Six devices are connected through a dual ring topology.

Network doesn’t effect

 

  • Four devices are connected through a mesh topology.

No effect on Network.

 

  • Twelve devices are connected through a star topology (Note: Do not consider the hub failure).

doesn’t affect the network.

 

  • Fifteen devices are connected through a star topology and only the hub is failed.

Network will shuts down.

 

  • Eight devices are connected through a bus topology.

Network will shuts down

 

 

 

Q6 it is wrong answer bcozIn it is said that "if a DEVICE fails" and you know that Bus is not a device it is a communication medium. so network will no affected

CS601 assignment solution fall 2012 (new )

Q. 1. Different topologies behave differently when a connection fails. You are required to discuss the effect on the network when only one device connection fails in the following cases: 

Solution

1. Seven devices are connected through a ring topology.
As the ring topology provides one way path for communication between devices in the ring, thus one node failure or breakage of cable isolate all the devices attached to ring from one another.
2. Six devices are connected through a dual ring topology.
In this case if one of the devices fails then we have two paths so called dual ring. The nodes communication will not be disturbed and the nodes will follow the second path and the device that fails or goes down will be disconnected from the network.
3. Four devices are connected through a mesh topology.
In mesh topology every node has a link with another nodes so if one device fails it will have no effect on the other (three) nodes except the one which fails.
4. Twelve devices are connected through a star topology (Note: Do not consider the hub failure).
If one of the devices fails then it will have no effect on other nodes and just this node will be disconnected from the network.
5. Fifteen devices are connected through a star topology and only the hub is failed.
When the hub fails the whole communication goes down and no device will now be able with other nodes.
Q. 2. Suppose a small company wants to develop a computer network of 18 computers in its main office. Due to limited resources the company wants a network architecture where a single communication medium can be shared among all other nodes. Considering this scenario, you are required to suggest the suitable line configuration and name all the possible ways through which your suggested line configuration can be implemented. 

Solution
In this case the spatially sharing system is best suitable and will provide the benefit of using the resources in a tactful manner and based on the needs. Bus topology can be used to provide a shared path over which the devices can communicate at lost cost. Only we need to have backbone cable, taps and drop tails that connect the nodes to the bus.

Question 1 Solution:

  • Seven devices are connected through a ring topology

          the network will disable but there will be some sort of communication b/w remaining 6 device.

          some devices can only recive data from some computers and some devices can recive as well as they can send data to few devices(think about that if one break the next device can send data to 5 next devices.and next device can send to next four devices and recive from back device...)

 

  • Six devices are connected through a dual ring topology.

         the communication will be through only one path. cmunication bcm very slow.

 

  • Four devices are connected through a mesh topology.

          only the affected device could not apable of communication.

 

  • Twelve devices are connected through a star topology (Note: Do not consider the hub failure).

         remaining 11 will communicate ...

           

  • Fifteen devices are connected through a star topology and only the hub is failed.

Network will shuts down.

 

  • Eight devices are connected through a bus topology.

          the only affected device could not communicate.



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