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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
(a) Illustrate what you understand by Nyquist Capacity Theorem? (b) Consider we wish to transmit at a rate of 64 kbps over a 4 kHz noisy but error-free channel. What is the mini
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
A half-duplex (HDX) system gives communication in both directions, but only one direction at a time. Hardly, once a party stats receiving a signal, it must need for the transmi
(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
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) A CRC is constructed to generate a 4-bit FCS for an 11-bit message. The divisor polynomial is X 4 + X 3 + 1 (i) Encode the data bit sequence 00111011001 using po
Mapping between a hardware address and a protocol address is known Address Resolution. A router or host uses address resolution when it requires to transmit a packet to another dev
1. For this project, assume that an organization has five servers. Server 1 has a TCO of $25,000, Servers 2 and 3 have a TCO of $37,000 each, and the remaining two servers— Servers
Question: a. State briefly three reasons why computer networks are used? b. Differentiate between simplex, half-duplex and full-duplex mode of transmission. c. State any
All references using actual quotes, paraphrase, or specific arguments, should employ page numbers. The essay is based on the unit content and should engage with the set readings, a
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