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What is the importance of knowing the IP addressing?

Convert the following to binary numbers to decimals using the long method.


1. 1101001


2. 10001.1101


3. 101110


4. 101010.1111


5. 111001



Convert the following decimal numbers to binary.


1. 76


2. 119


3. 1032


4. 1010


5. 242



Convert the following to binary numbers to decimals using the long method.


1. 1101001


2. 10001.1101


3. 101110


4. 101010.1111


5. 111001




Convert the following decimal numbers to binary.


1. 76


2. 119


3. 1032


4. 1010


5. 242



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


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