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question a there are two approaches for providing confidentiality for packets in a network using symmetric encryption end-to-end encryption and link
questiona what do you meant by the term diffusion and confusion explain how diffusion and confusion can be implementedb distinguish between
questiona distinguish between steganograhy and cryptographyb playfair cipher is more secure than monoalphabetic cipher justify this statementc
question 1 discuss the following switching mechanisms-circuit switchingmessage switchingpacket switching question 2 discuss the following ieee
questiona name a method to allow a person to send a confidential email to another person without risks of a third-party reading the email describe
questiona what do you meant by privacyb name the four privacy violationsc often aggregate information and anonymized information can be combined
questiona describe how ipsec provides data source authenticationb which protocol can be used to provide limited traffic analysis confidentiality
questiona what is the major problem with public key encryption when compared to symmetric key encryptionb consider the following protocol for
questiona your office administrator is being trained to take server backups which authorization model could be ideal for this situation mac dac or
questiona which type of attacker represents the most likely and most damaging risk to your networkb what is the basic reason that social engineering
caralouer provides rental of cars to its customer on a regional basis ie a car is attached to a regional home-base which also houses a regional
questiona explain briefly three typical network topologies giving one advantage and one disadvantage of each topology explain the three topologies
question 1 describe the followinga internet technologiesb networksc media access controlquestion 2 explain the various classes of networksquestion 3
a consider that a host is sending a frame of 1200 bytes to another host found 20 kilometers away assume that switching delay is negligiblei
questiona in relation to network design give two reasons why the building-block approach is favoured to the traditional approachb explain the
question 1a what is xdsl and enumerate the benefit of such a technologyb name some of the typical applications of xdsl and the different types and
question 1a differentiate between the several types of switching networks together with illustrationb with the help of a diagram explain the two
questiona distinguish between udp and tcpb you have been asked to design and implement a chat application for a university which protocol could you
questiona the ieee 802 series of standards describe both the physical and data link layers of their respective technologies two important standards
questiona describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as tcpb
questiona outline the main interactions that take place when a user requests a valid web resource in the address bar of a modern web client till the
questiona what is network address translation nat why is it usedb given a following information by your isp about your newly acquired frame relay
questiona there are two basic approaches to dealing with errors in the presence of pipelining one way is go-back-n and the other strategy is
a calculate the crc for the frame belowframe 1101011011generator 10011message after appending 4 zero bits 11010110110000b osi refers to a system in
questiona explain what the following intermediate systems are and how they worki repeater ii bridgeb a service is formally specified by a set of