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Company A has about 100 employees spread over three locations in the same city, all linked by fast network connections. The IT/IS administration is centralized and includes the helpdesk.
The HR department has sensitive information that can only be viewed by members of the HR department and executive offices. Each location has computers and printers for use within the individual departments but that not to be used by employees from another department. All executives and members of the executive offices are authorized to enter all locations. All other employees only have authority to enter the location they work at.
Prepare a domain structure for Company A using a diagram. Include Organizational Units (OUs) and a group structure.
Prepare a network simulation
Find out whether it's configured to transfer data at 10 Mbps rather than 100 Mbps, as it should be. How could you find this information and change it, if necessary?
Create several duplicate scenarios and modify the interarrival times for all the Ethernet stations to 0.0008, 0.002, 0.003, 0.005, and 0.006, respectively.
Illustrate attacks and defenses to these session key establishment protocols at all levels, including one or both of communicating machines being compromised.
Assume you have been employed as a consultant to suggest a retailing corporation about ways in which it can use networking technology to enhance its business.
Suppose that the receiver computes the UDP checksum for the Internet department received UDP and finds that matches the value transferred to the checksum field.
Deduce the expression for link utilization U of a data link which uses sliding-window flow control and returns ACK for every OTHER frame received.
Research network address translation (NAT). While conducting your research, consider purpose of NAT, compatibility with IPv6, and functions of automatic IP assignment and automatic name resolution.
Create a communication system (block diagram) which will permit transmission of these four sources over telephone using frequency division multiplexing and TDM PCM assume using 4 bit samples.
Illustrate how you can create message with particular CBC residue, with only constraint which somewhere in message you have to be able to embed 64 bits of "garbage".
Determine the mean time to spend frame of 1000 bits to another station, measured from beginning of transmission to end of reception? Suppose propagation speed of 100 m/μs.
Is there any protocol which you and Luke can use to avoid defeat? If not, describe why not. If there is protocol that would work, describe it.
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