Showing posts with label cs610. Show all posts
Showing posts with label cs610. Show all posts

Thursday, October 6, 2011

Assignment Solution cs610 Q1. In which situation multiplexing is used? Explain with the help of working structure.

Multiplexing is to combine multiple signals (analog or digital) for transmission over a single line or media. A common type of multiplexing combines several low-speed signals for transmission over a single high-speed connection. Multiplexing can be used to achieve large number of signals simultaneously and to reduce the cost of transmission.
A real world example of multiplexing is the transmission from the computer/instrumentation system of a satellite, space craft or other remote vehicle to a ground-based system.




Q2. XYZ Company has two offices in Multan. Each office has 40 systems. Network administrator want to connect both offices, as for as he has no budget issues. Answer the following questions.

Which cable is suitable for networking? Give reasons

Solution:

Company has no budget issue so fiber optic Due to much lower attenuation and interference, optical fiber has large advantages over existing copper wire in long-distance and high-demand applications.

Which network Topology will be used with in the office and why?

Solution:
Star Topology will be used in office / building network. It is a most usable topology in local area network from all over the world. Star topology can be easily put into practice in offices or in a building. It is easy to configure, and you can easily increase computers in a network without any disturbance. You can easily diagnose the error due to central device. In star network if any cable or node failure then there is no effect on entire network.
Which network Topology will be used for connecting two offices and why?
    
Solution:
Bus Topology will be suitable for networking between these 2 offices / buildings. Bus Topology is used for small and simple network. Bus topology connects all computers in a linear shape with a backbone to connect all computers. it is very easy and understandable. There is no much wires used for connectivity therefore it is less expensive. A user can easily extend a Bus topology because two cables can easily joined with a one long cable.


Which network device will be used to connect two offices?
     
 Solution:
 Switches and / or Routers will be used.

Assignment Solution CS 610 Computer Networks Which command will display the ARP table on the computer?


Q1: Which command will display the ARP table on the computer?



              (arp –a) command  is used.



Q2: Which command will be used to clear the ARP table?

 (arp –d) command is used.                                   Snapshot:

Q3: Which command will be used to delete a specific entry of the ARP table?

 ( arp –d )  192. .168.53.8 command is used.        Snapshot:

Q4: Which command will be used to display all entries in ARP?

 ( arp –a –v ) command is used.                             Snapshot:

Q5: What the purpose of this command “netstat” and how to use it with

        different options?


Netstat (network statistics) is a command-line tool that displays network connections (both incoming and outgoing), routing tables, and a number of network interface statistics.





NETSTAT command with the following options

-a displays all connections
-b displays the executable connection
-e displays Ethernet details
-f displays FQDN addresses.
-n displays addresses in numbers
-o displays the owning process
-p shows connections for the protocols
-r displays the routing table.
-s displays per-protocol details
-t displays the current connection