Merits of a network based ids and a host based ids, Computer Networking

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Question:

(a) Describe the following biometric techniques:- (i) Retina scan, (ii) Fingerprint, (iii) Iris Scan. Your answer should consider the following: the data storage requirements of the biometric template, the biometric characteristic that differentiates them, their accuracy, the user enrolment process and their relative merits.

(b) Describe what is meant by Type I error, Type II error and the cross over error rate for a biometric system. What is considered the most important error for a biometric access control system?

(c) Compare the relative merits of a network based IDS and a host based IDS.

(d) Which type of IDS tend to report more false positives but are able to detect new attacks?


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