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FRAGMENTATION
Fragmentation information is kept in different extension header. Every fragment has base header and fragmentation header. Whole datagram including original header can be fragmented. This process is given in the figure below.
QUESTION (a) FTP is a protocol used for the delivery of files across networks. Explain how FTP works (support your answer with a diagram). (b) How does TCP perform the gi
Application Gateways / firewall The application level firewall is installed on a dedicated computer; also called as a proxy server. These servers can store the recently accessed
what is relation ship between computer security goals?
WHY USE AN IDS? IDS prevent from problem behaviors by increasing the perceived risk of discovery and punishment. Detect the attacks and other security violations. Detect and at
Develop a TCP-based client-server socket program for transferring a large message. The message transmitted from the client to server is read from a large file (size is about 30000
What is the concept of topology?
Transposition technique
Question: (a) Give 2 benefits of using IPsec. (b) IPSec uses two protocol for security: Authentication Header protocol (AH) and the Encapsulated Security Header Protocol (
In the e-mail system, where the e-mail messages are saved and why? E-mail messages are saved in user’s private electronic mailbox. A mailbox refers to a local/domestic hard drive c
Network can be distinguished by shape. According to which there are three most popular methodologies, which are shown as follows; Star Ring Bus
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