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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?
Consider the details of the X.509 certificate shown below. a. Identify the key elements in this certificate, including the owner''s name and public key, its validity dates, the nam
Repeater known as regenerator ; it is an electronic machine that performs only at physical layer. It gets the signal in the network before it becomes loss or weak, recreates the
(a) (i) Bob has public RSA key (n = 77, e = 7). Show that Bob's private key is (d = 43). (ii) Alice wants to send the message m = 13 to Bob. She encrypts the message usi
#questioAn elliptic curve y^2=x^3+ax+b(mod29) includes points P=(7, 15) and Q=(16, 13) a)Determine the equation of the crve b) Determine all values of x for which there is no point
COLLISION DETECTION The signals from two devices will interfere with each other and the overlapping of frames is known a collision. It does not cause to the hardware but data
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(a) Consider the subsequent authentication options: A. Using password. B. Using pin and fingerprint Which option A or B provides stronger security and why? (b) Give
UDP- DATAGRAM TRANSPORT SERVICE INTRODUCTION: UDP is the one of the transport protocols in TCP/IP protocol suite. UDP protocol accepts applications on the computers to
Guided Media These are those that give a conduit from one machine to another that add twisted-pair, fiber-optic cable and coaxial cable. A signal traveling along any of these
Question : (a) "Pulse Code Modulation (PCM), as used in telephony, samples a signal at 8 kHz using 256 quantization levels". Outline how this scheme works with the help of ske
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