Computer Networks Answers

What is the output of the first round of the DES algorithm when the plaintext and the key

are both all ones?

What is the advantage and disadvantage of making the computer network transparent to the user?

What can organizations do to fight back against typosquatting? Research the Internet to find out how companies are combating this growing problem. How can these typosquatting sites be taken down? What must a company do in order to stop these sites? And why has it been so difficult to do this? What proactive steps can all companies take? Write a one-page report on your research.

answer the question depending on what you given 

distination MAC address ?

source MAC address 00-ED-02-03-EC-AC

source ip address 192.168.2.12

what is destination ip address?

hint:the communication ( message delivering ) is broad casting

10.10.10.100/28 answer the following question depending on the given ip address

A. network address

B.first host address

C.last host address

D.broadcast address

Write an NS2 script to build 3-node point to point network. Implement three nodes point

– to – point network with duplex links between them. Set the queue size, vary the

bandwidth and find the number of packets dropped.

Write an NS2 script to build 2-node point to point network. Implement three nodes point – to – point network with duplex links between them. Set the queue size, vary the bandwidth and find the number of packets dropped

c) An ABC university wanted to establish a network to enable communication between Admission & Enrollment sections, Finance, Administration and Examination and departments. You are hired as a Networking Expert to suggest them:

i. A suitable network which they should implement? State reason also.

Write an NS2 script to build 2-node point to point network. Implement three nodes point 

– to – point network with duplex links between them. Set the queue size, vary the 

bandwidth and find the number of packets dropped.

Given an IP address, network mask, and subnetwork mask, determine other information and implement it about the IP address such as:

      i.           The subnet address of this subnet.

   ii.           The broadcast address of this subnet.

 iii.           The range of host addresses for this subnet.

 iv.           The maximum number of subnets for this subnet mask.

   v.           The number of hosts for each subnet.

 vi.           The number of subnet bits.

vii.           The number of this subnet.