Intrusion Detection Systems IDS) Are Designed to Monitor Network Traffic

question 46

Multiple Choice

Intrusion Detection Systems IDS) are designed to monitor network traffic and identify threats that may have breached the networks initial defenses. These include all of the following except:

• A) An attacker who is using the identity or credentials of a legitimate user to gain access to an IS, device, or network
• B) A legitimate user who performs actions he is not authorized to do
• C) A user who tries to disguise or cover up his actions by deleting audit files or system logs.
• D) Employees who use computing or network resources inefficiently.

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Definitions:

Missing Pulses

Refers to the absence or loss of expected pulses in a sequence, often in the context of electronic or digital signals.

Poisson Approximation

A method used to approximate the distribution of a number of events in a fixed interval of time or space, assuming the events occur with a known constant mean rate and independently of the time since the last event.

Trials

In probability, the term refers to the execution of an experiment or the number of times an experiment is run.

Poisson Distribution

A statistical distribution showing the probability of a given number of events occurring in a fixed interval of time or space.