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Deploying Host-Based IDSs-Proper implementation of HIDSs can be painstaking and time-consuming task .The process of deployment begins with implementing most critical systems first Installation continues until either all systems are installed, or the organization reaches planned degree of coverage it is willing to live MEASURING THE EFFECTIVENESS OF IDSIDSs are evaluated by using two dominant metrics:-Administrators evaluate number of attacks detected in the known collection of probes-Administrators examine level of use at which IDSs failEvaluation of IDS might read: at 100 Mb/s, IDS was able to detect 97 percent of directed attacks as developing this collection can be tedious, most IDS vendors provide testing mechanisms which verify systems are performing as expected. These testing processes allows administrator to:- Record and retransmit packets from virus or worm scan-Record and retransmit packets from a virus or worm scan with incomplete-TCP/IP session connections -Conduct a real virus or worm scan against an invulnerable system
Problem (a) Give two reasons for companies to implement security measures. (b) What is the regulatory expectation regarding i. healthcare information, ii. financial
Size of Option field of an ip datagram is 20 bytes. What is the value of HLEN? What is the value in binary?
Problem: (a) Assume that a new application layer protocol is developed for video conferencing application. Which transport layer protocol, between TCP and UDP, will you u
What do you understand by cryptanalysis? Discuss about the transposition ciphers substitution cipher, and onetime pads. The messages which are intended to transmit secretly and
Risk Determination For purpose of relative risk assessment, risk equals probability of vulnerability occurrence TIMES value MINUS percentage risk already controlled PLUS an elem
In BUS topology every computer is directly connected to primary network cable in a single way. Bus networks are the easiest way to connect multiple users, but can have problems
Problem (a) Differentiate between private key and public key encryption. (b) What issue with private key encryption is resolved with public key encryption? (c) Describe
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Network can be distinguished by shape. According to which there are three most popular methodologies, which are shown as follows; Star Ring Bus
Question (a) Name 3 popular electronic mail access protocols? (b) i. What is DNS? ii. Briefly, describe what it does and how it works? iii. Why does DNS use a dist
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