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Question:
(a) Which of the following is not a goal of security:
i) detection ii) prevention iii) recovery iv) prosecution
(b) You are an honest student. One day you receive a letter from the University requiring you to see the IT manager about a serious security break-in which you appear to have been involved in. You've never done anything like this. What could be happening here, and how could you have become implicated?
(c) Give one example of a Packet Sniffer tool that can be used for eavesdropping. What is the aim of an attacker in using a packet sniffing?
(d) Give two differences between a hacker and a cracker.
(e) What is buffer overflow? What type of attack is it? How do you prevent it?
(f) Your help desk has informed you that they received an urgent call from the vice president last night requesting his logon ID and password. What type of attack is this?
(g) A hacker located at IP address 12.8.0.1 wants to launch a Smurf attack on a victim machine located at IP address 129.74.15.12 utilizing a third-party network located at 141.190.0.0/16. What would be the source and destination IP address on the single packet the hacker transmits?
Question: (a) Describe how IPSec provides data source authentication. (b) Which protocol can be used to provide limited traffic analysis confidentiality? Why is it "limite
Question: a) 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 Selective Repeat. i. Explain
Question: (a) What do you understand by the term "integrity"? (b) Which type of attack denies authorized users access to network resources? (c) You have discovered tha
Question: (a) For the bit stream 010011, sketch the waveforms for each of the code indicated. Assume the following: the signal level for the previous bit for NRZI was a 1
(a) Describe briefly the difference between flow control and congestion control in relation to a connection-oriented protocol such as TCP. (b) What is the initial rate of data
Normal 0 false false false EN-US X-NONE X-NONE
ENCAPSULATION Network interface layer adds IP datagram as data area in hardware frame. Hardware ignores IP datagram message format. Standards for encapsulation defines details
Question : (a) How does a 2-key rollover differ from the N-key rollover? (b) Why is isolation so important in interfacing? (c) Explain what is software debouncing.
In the early days when there were some dozen computers machine on the network, it was done individually but now as we have looked that there are millions of computers on the intern
Da t a compre s sion and the trans p ort s e rvices, The main purpose of the transport layer is to provide services which are efficient, reliable and cost-effecti
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