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XYZ Corporation employs 40,000 people, with their own associated IP addresses, and operates over 400 servers, including email (SMTP and POP3), FTP, Web, and DHDP at two locations: one in Muncie, Indiana, the other about 20 miles away in Hartford City. Dual T1 lines, for total aggregate bandwidth of 3.088 Mbps, link the two sites, and each site contains roughly half of the employees and servers. Perforce, each site operates on multiple, separate subnets inside a single Class B address that the company owns. Make a case for setting up a single, separate DNS server at each location, explaining how each might back up the other, and what benefits this might provide for XYZ Corporation users. Explain how the relative speed of the 100BaseT LANs used at each location compares to accessing the WAN link between the two sites.
Suppose a future where security countermeasures against DoS attacks are much more widely implemented than at present.
Assume that N Ethernet stations, all trying to send at same time, need N/2 slot times to sort out who transmits next. Describe available bandwidth as function of N.
Your task is to design the network for the public network and select how to connect the two networks together.
It is essential to encrypt it, by using solutions like PGP (Pretty Good Privacy), S/MIME (Secure Multi-Purpose Internet Message Exchange), and steganography. Research these different mechanisms.
Provided that both the design shop and front office utilizes areas? What medium guarantees immunity from the interference?
A crypto device encrypts each message into 20 bits of ciphertext.What is the entropy of the plaintext message? What is the entropy of the ciphertext message?
In Ricart and agrawala's An optimal algorithm for mutual exclusion in computer networks paper if we are updating the code with taking the priorities.
You have been assigned th task of determining the available wireless methods that could be used to connect buildings to each other and presenting these options to executive team.
What would be needed along with precautionary measures, and an overview of how the Internet works for the organization's office administration.
CMP provides many useful services, yet some organizations block ICMP traffic. Why should an organization block ICMP traffic?
Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on earth. What is the propagation delay of the link?
Describe how the greater reach of telecommunication networks today affects the security of resources which an organisation provides for its employees and customers.
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