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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
Question (a) In relation to a TCP segment structure, provide the fields responsible for: i. Connection Management ii. Flow Control iii. Error Control iv. Reliable, in-order
Question: (a) What is the main security vulnerability of IPv4? (b) Which protocol can be used for secure remote login? (c) Distinguish between the transport and tunnel
ADDRESS MASKS To identify receiver, network apply address mask to receiver address and calculate to network address in routing table. It can use Boolean 'and' to calculate the
LOG FILE MONITORS Log file monitor (LFM) is similar to NIDS. It reviews log files generated by servers, network devices, and even other IDSs for patterns and signatures. Pattern
ADDRESS RESOLUTION PROTOCOL (ARP) TCP/IP can use any of the three address resolution functions relaying on the addressing procedure used by the underlying hardware. To guarant
(a) Cost allocation mechanisms are important when it comes to establishing other aspects of inter-firm compensations and how these are transferred to the users. There are two pri
Q1 (15 marks, 5 marks each part): This question has three parts: In a short paragraph (200-300 words) explain the fundamentals of Packet Switching and how it works. In a short pa
QUESTION (a) A convex flow problem is a non linear network flow problem. Explain how a convex flow problem could be transformed into a Minimum Cost Flow problem. (b) Exp
crack the secret message and explain how the code works. The clue is that it has something to do with the computer keyboard. J-Q-H-6 Q-E-F-Q-H-D-3-W 8-H 5-Y-3 7-W-3 9-R--D-9-J
FRAME FORMAT AND ERROR DETECTION The changed frame format also adds CRC. If there is an error happened in frame, then it typically causes receiver to removed frame. The frame
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