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Question:
(a) Describe how IPSec provides data source authentication.
(b) Which protocol can be used to provide limited traffic analysis confidentiality? Why is it "limited"?
(c) What is encapsulation?
(d) Considering the TCP/IP protocol suite, what is the lowest layer at which a firewall can operate?
(e) A company designs and implements software. It needs a web site to sell its products, and needs to be able to forward email from external sources (such as customers) to the developers. But it is concerned about putting systems of the developers' network onto the Internet.
The company hired a consultant, who recommended that the company design a network that included a DMZ.
a. Please explain what a DMZ is.
b. Why did the consultant recommend this?
(f) Explain how a "signature based IDS" works? What is the disadvantage of such an IDS?
Question (a) Estimate the average throughput between two hosts given that the RTT for a 100 bytes ICMP request-reply is 1 millisecond and that for a 1500 bytes is 2 millisecon
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UDP INTERACTION UDP follows four kinds of interaction 1-to-1: One application can interact with one application. 1-to-many: One application can interact with many
the meaning Digital Signatures
FRAME FORMAT AND ERROR DETECTION The changed frame format also adds CRC. If there is an error happened in frame, then it typically causes receiver to removed frame. The frame
QUESTION: (a) Suppose the graph below, use the Flow Decomposition method to list the cycles and paths produced. (b) Describe how Lower Bounds on Arc Flows are eliminated
Question: a) How many bits per second can be sent on a noiseless 4 MHz channel if four-level digital signals are used? b) If a binary signal is sent over a 3 KHz channel who
state the fundamental principles of 3gpp security
Access Controls Access controls addresses admission of a user into a trusted area of organization. It comprises of a combination of policies & technologies. The ways to control
NSTISSC SECURITY MODEL The NSTISSC Security Model provides a detailed perspective on security. While the NSTISSC model covers the 3 dimensions of information security, it removes
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