Operating System Mcqs

Page No. 52

What are the drawbacks of the host based IDS?


aUnselective logging of messages may increase the audit burdens


bSelective logging runs the risk of missed attacks


cThey are very fast to detect


dThey have to be programmed for new patterns



What are the characteristics of Host based IDS?


aThe host operating system logs in the audit information


bLogs includes logins, file opens and program executions


cLogs are analyzed to detect tails of intrusion


dAll of the mentioned


View Answer All of the mentioned

What are the drawbacks of signature based IDS?


aThey are unable to detect novel attacks


bThey suffer from false alarms


cThey have to be programmed again for every new pattern to be detected


dAll of the mentioned


View Answer All of the mentioned

What are the characteristics of signature based IDS?


aMost are based on simple pattern matching algorithms


bIt is programmed to interpret a certain series of packets


cIt models the normal usage of network as a noise characterization


dAnything distinct from the noise is assumed to be intrusion activity



What is the major drawback of anomaly detection IDS?


aThese are very slow at detection


bIt generates many false alarms


cIt doesn’t detect novel attacks


dNone of the mentioned



What are the characteristics of anomaly based IDS?


aIt models the normal usage of network as a noise characterization


bIt doesn’t detect novel attacks


cAnything distinct from the noise is not assumed to be intrusion activity


dIt detects based on signature



What are the different ways to classify an IDS?


aanomaly detection


bsignature based misuse


cstack based


dall of the mentioned


View Answer all of the mentioned

What are the major components of the intrusion detection system?


aAnalysis Engine


bEvent provider


cAlert Database


dAll of the mentioned


View Answer All of the mentioned

What are the different ways to intrude?


aBuffer overflows


bUnexpected combinations and unhandled input


cRace conditions


dAll of the mentioned


View Answer All of the mentioned

What is the role of Key Distribution Center?


aIt is used to distribute keys to everyone in world


bIt intended to reduce the risks inherent in exchanging keys


cAll of the mentioned


dNone of the mentioned



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