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Which of the following examples illustrates a precursor concept?

A. An application platform logs multiple failed login attempts, seemingly from an unfamiliar system or IP address.

B. Server or other logs that indicate a vulnerability scanner has been used against a system.

C. Antivirus software detects that a device, such as an endpoint or removable media, has a suspected infection on it.

D. A new or unmanaged host or endpoint attempts to join the network.

Answer :

Final answer:

In network security, precursor concepts indicate potential threats, enabling early detection. The examples of failed login attempts and vulnerability scanning log are strong indicators of possible breaches. Recognizing these signs helps in implementing proactive defense measures.


Explanation:

Understanding Precursor Concepts in Monitoring

In the context of network security, a precursor concept typically refers to indicators or signs that suggest potential threats or vulnerabilities within a system. It is crucial to recognize these signs to proactively mitigate any attacks. In the examples provided, we need to identify which instance showcases a precursor concept.

Examples Analyzed

  1. Application platform logs multiple failed login attempts: This indicates potential unauthorized access attempts, reflecting a concerning precursor to a possible breach.
  2. Server logs indicating a vulnerability scanner: This also represents a precursor, as it suggests that someone is probing the system for weaknesses that could be exploited.
  3. Antivirus detects a suspected infection: While indicative of a threat, this is more of an active detection of an existing problem than a precursor.
  4. New or unmanaged host attempts to join the network: This could be a precursor, as it hints at an unknown entity attempting to access the network without authorization.

Among these, the most notable precursor concepts are the first two. Both the failed login attempts and vulnerability scanning alerts signify behaviors that precede potential more significant attacks.


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