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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.
crack the secret message and explain how the code works. The clue is that it has something to do with the computer keyboard. J-Q-H-6 Q-E-F-Q-H-D-3-W 8-H 5-Y-3 7-W-3 9-R--D-9-J
Q. Develop a completely secure WSN based on the triple key? Wireless network is the most vulnerable type of network to security attack. Unauthorized access to wireless network
Consider a computer system with three users: Alice, Bob and Cindy. Alice owns the file alicerc, and Bob and Cindy can read it. Cindy can read and write the file bobrc, which Bob ow
Application-Based IDS Application-based IDS (AppIDS) is an advanced version of HIDS. It examines application for abnormal events. The ability to view encrypted data is the uniqu
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SDLC Systems development life cycle (SDLC) is process of developing information systems through analysis, design, investigation, implementation and maintenance. SDLC is called as
SECURING THE COMPONENTS Computer can be subject of an attack or the object of an attack. When subject of an attack, computer is used as lively tool to conduct attack. The figure
ERROR REPORTING MECHANISM (ICMP) INTRODUCTION: IP gives best-effort delivery. Delivery causes can be ignored; datagrams may be 'dropped on the ground'. Internet Control Me
ARP RESPONSES Let's search out how does a computer know whether an incoming frame have an ARP message. The type field in the frame header defines that the frame contain an ARP
Base lining • Organizations do not have any contact to each other • No two organizations are identical to each other • The best practices are a moving target • K
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