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Problem:
(a) What is a firewall and which are its most important tasks?
(b) What is the difference between default deny and default permit? Which advantages and disadvantages do the two strategies have? (c) Many companies implement one or more firewalls between their "internal" network and the external Internet. Explain, using a diagram, a typical firewall-based Internet connection, and explain briefly the purpose and likely configuration of each of the components.
(d) What is the role of an intrusion detection system (IDS) in a network? Explain the operation of a signature based IDS. Discuss its advantages and disadvantages.
Enterprise Information Security Policy (EISP) EISP also known as security policy directly supports the mission of the organization and sets the strategic direction, scope, and t
What is Authentication/confirmation? How it is different from the Authorization/approval? Explain in brief different authentication protocols along with their merits and demerit
IPv6 ADDRESSING IPv6 has 128-bit addresses. A 128-bit address adds network prefix and host suffix. An benefit of IPv6 addressing is that there is address classes i.e. prefix/s
Government funding has been given to a university consortium establishing a repository of resources for school teachers. They have engaged you to develop a search facility for teac
Describe the process a proposed standard goes through to become an RFC
Problem (a) Below is a capture of an Ethernet II frame which contains an IPv4 packet and a TCP segment. The second screen capture is from the data portion of the frame.
Network-Based IDS (NIDS) A NIDS resides on computer or appliance connected to segment of an organization’s network and looks for signs of attacks. While examining packets, a NID
An injunction to 'think ethically' about a situation is not helpful. Perhaps if one has a background in moral philosophy this would work, but usually both students and IT professio
implementing password policy in organisation
Question: (a) Explain how the Diffie-Hellman key establishment protocol works. (b) Prove that the Diffie-Hellman key establishment protocol is vulnerable to a `man in the mi
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