Operating System Mcqs

Page No. 52

What are the drawbacks of the host based IDS?


aUnselective logging of messages may increase the audit burdens

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bSelective logging runs the risk of missed attacks

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cThey are very fast to detect

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dThey have to be programmed for new patterns

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What are the characteristics of Host based IDS?


aThe host operating system logs in the audit information

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bLogs includes logins, file opens and program executions

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cLogs are analyzed to detect tails of intrusion

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dAll of the mentioned

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View Answer All of the mentioned

What are the drawbacks of signature based IDS?


aThey are unable to detect novel attacks

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bThey suffer from false alarms

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

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dAll of the mentioned

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View Answer All of the mentioned

What are the characteristics of signature based IDS?


aMost are based on simple pattern matching algorithms

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bIt is programmed to interpret a certain series of packets

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cIt models the normal usage of network as a noise characterization

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dAnything distinct from the noise is assumed to be intrusion activity

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What is the major drawback of anomaly detection IDS?


aThese are very slow at detection

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bIt generates many false alarms

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cIt doesn’t detect novel attacks

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dNone of the mentioned

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What are the characteristics of anomaly based IDS?


aIt models the normal usage of network as a noise characterization

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bIt doesn’t detect novel attacks

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

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dIt detects based on signature

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What are the different ways to classify an IDS?


aanomaly detection

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bsignature based misuse

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cstack based

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dall of the mentioned

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View Answer all of the mentioned

What are the major components of the intrusion detection system?


aAnalysis Engine

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bEvent provider

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cAlert Database

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dAll of the mentioned

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View Answer All of the mentioned

What are the different ways to intrude?


aBuffer overflows

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bUnexpected combinations and unhandled input

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cRace conditions

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dAll of the mentioned

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View Answer All of the mentioned

What is the role of Key Distribution Center?


aIt is used to distribute keys to everyone in world

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bIt intended to reduce the risks inherent in exchanging keys

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cAll of the mentioned

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dNone of the mentioned

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