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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
You have been asked to setup a remote temperature sensing system for an electric furnace. The system consists of a sensor unit which feeds an analogue signal to a PCM encoder. The
PACKET SNIFFERS A packet network protocol analyzer is a network tool which collects copies of packets from network and analyzes them. It can give network administrator with valu
TOKEN RING Many LAN methods that are ring topology need token passing for synchronized access to the ring. The ring itself is acts as a single shared communication phase. Both
ACCESS CONTROL DEVICES Successful access control system includes number of components, which depends on system’s requirements for authentication and authorization. Powerful auth
DIRECT INDEXING It is less usually known method. It is possible only is cases where protocols address are given from a compact range. In the diagram below an example of direct
QUESTION: a) Explain four issues that are generally addressed in the Needs Analysis phase in the building-block approach to network design. b) Sketch a typical hybrid star-b
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
Question: (i) ‘Implementation' is a critical stage of the Systems Development Life Cycle. Show the four approaches which are commonly used to implement information systems in
Question: (a) i. Explain what is meant by Discretionary Access Control and Mandatory Access Control ii. Which method would be the most effective to ensure that users do
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
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