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Question (a) Consider that you enter the subsequent URL in the address bar of a popular web client and that both the server and client accepts HTTP version 1.1.
i. What can be the initial request made by the client?
ii. Describe how HTTP version 1.1 allows 'surfing' experience to be greatly improved.
iii. Provide a sample HTTP request message with at least 4 main header lines that is sent by the web client.
iv. Consider that the web resource is actually found on the server, give at least 3 header lines that you can expect in the sample response HTTP message.
Question (b) Integrity and Authentication are two important network security services.
i. Describe what you understand by authentication.
ii. Give one mechanism that will be used to enforce both authentication and data integrity and illustrate briefly how it works.
iii. Explain one mechanism that you can use to ensure data integrity alone during transmission.
The objective of this example is to demonstrate the steps required for a successful attack against a vulnerable Windows XP SP2 system. It will show: a) how Nessus can be used to di
Selecting a Risk Control Strategy Risk controls involve selecting one of the 4 risk control strategies for every vulnerability. The flowchart is shown in the figure given below
INFORMATION SECURITY POLICY PRACTICES AND STANDARDS Management from all the communities of interest should consider policies as basis for all information security efforts. Polic
Information and Network Security Part 1- Recovery of an encrypted `word' using a forward search attack. Complete and correct summary for part 1. Adequately commented, clea
Deploying Host-Based IDSs -Proper implementation of HIDSs can be painstaking and time-consuming task .The process of deployment begins with implementing most critical systems fi
define .
Computer networks is a complex subject due to the given reasons: MANY DIFFERENT TECHNOLOGIES EXIST: The first reason for the complexity of networks is that there are s
Example : UCSF Medical Center In the year 2002, the University of California, San Francisco (UCSF) Medical Center received an email message from someone who claimed to be a doct
Explain TCP congestion control.
Question: (a) Explain the following security services: Confidentiality, Availability. (b) Which attack will be used to bypass even the best physical and logical security m
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