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Security Infrastructure and Protocols
a) PKI and PGP are two methods for generating and managing public keys for use in protocols such as secure email. Compare and contrast the trust models for public keys used in PKI and PGP, and assess the statement that a PKI is a "top-down" approach to trust and PGP is a "bottom-up" approach to trust.
b) The SSL protocol uses (X.509) certificates to create a secure session between a server and a client in a web session. Discuss the browser-based trust modelassumed in SSL, and compare it with the trust model used in Kerberos. Kerberos is designed to operate is a relatively small domain, such as a single company. Discuss the practical issues around extending the Kerberos trust model to a global scale, say to provide secure services between Amazon and its customer base.
You have been asked to design a LAN with operation over a distance of about 100m. Compare and contrast twisted pair cable, coaxial cable, fiber-optics.
Is there a need for a network to be built for connecting the servers and users, will data go across the WAN or will it stay local to the LAN?
q 1.nbsp select a route by using ld lc dcur heuristic and rdm heuristic for a call r whose specifications are r 1af
Create a plan to set up a local area network. Design a boardroom-quality Microsoft® PowerPoint® presentation of 10-12 slides detailing your plan.
Describe the network you would recommend and how it would be con?gured with the goal of building a new network that will support the company's needs for the next 3 years with few additional investments.
The faulty staff and students of CityCampus need the ability to communicate with each other via email and to access to internet. Plan and design a LAN/WAN for CityCampus based on the following considerations
Wireless DSL is available in her apartment building for $45 per month for 1.5 Mbps down and 256 Kbps up. Explain the differences in these services and make a recommendation.
the university has recently leased a building in adelphi maryland.nbsp the building will house some offices classrooms
Subnet a class C network into subnets using 2 of the resulting new Network IDs Diagram a woring LAN depiting the two newnetworks.
What factors of the various UPS systems must concern you? What would you suggest as the lowest cost solution for this situation?
Describe why an application developer might choose to run over TCP rather than UDP. Suppose host A is sending host B a large file over a TCP connection. If the acknowledge number for a segment of this connection is y, then the acknowledge number for ..
What is the number of triangles in a complete graph with vertices and what is the expected number of triangles in an Erdos-Rényi graph , a graph on vertices where each edge appears with a probability independently?
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