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Problem
1. Alice can use only the additive cipher on her computer to send a message to a friend. She thinks that the message is more secure if she encrypts the message two times, each time with a different key. Is she right? Defend your answer.
2. Encrypt the message "this is an exercise" using additive cipher with key = 20. Ignore the space between words. Decrypt the message to get the original plaintext.
Create a diagram of the DSL and Cable Modem connections to your ISP, cable organization, and telecom to your home router using Visio or its open source alternative software. Compare and evaluate the speeds of DSL and cable modem that you researched
Compare WAN's and LAN's. What are the similarities, what are the differences. What special considerations must you remember when planning a WAN
you are a networking intern at richman investments. you recently developed a design for a remote access control policy
Discuss why the sensitive information should not be sent over the Wireless Application Protocol. Kindly elaborate on more than four hundred words.
You are required to implement a crude version of Remote Procedure Call. Normally this would require some degree of compiler support. However, we will simplify the interface so that the basic RPC is there, and it is only a matter of syntactic sugar..
Explain how you would set up a small network in hardware and software for a charity with six computers running Windows 7. The charity would like to share an Internet connection and buy a multifunction device
HS1011 Data Communication and Networks Assignment. Identify a freeware tool that can monitor the entire network and show status of each computer in the network
1. list the three fundamental security properties and for each give an example of failure. justify your answer based on
Using the course materials, the textbook, and Web resources, research linked-state routing protocols. How do routing protocols work
Explain how host X obtains the MAC address of host Z. Describe how switch S handles the ARP request and response messages, and builds its switch table.
Research and evaluate two SIEM and two Network Management Solutions. Students are to research and evaluate two SIEM and two Network management solutions.
Write down the advantages and disadvantages of building these three separate models? What representations are used for each of these models?
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