CS0-003 Security Operations Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✓

  Disabling unnecessary plug-ins

  Why this is correct

  Disabling unnecessary plug-ins prevents the scanner from running checks that are not relevant to the environment, such as Windows-specific tests against Linux hosts. Each plug-in produces findings, and if it probes for software or services that are absent, it can generate false positives based on erroneous banner matches. By tailoring the active plug-in set to the actual asset inventory and exposed services, the analyst reduces meaningless alerts and focuses the scan on likely vulnerabilities. This is a core tuning step that directly reduces false positives while preserving comprehensive coverage.

• ✓

  Enabling credentialed scanning

  Why this is correct

  Enabling credentialed scanning authenticates the scanner to target systems, allowing it to read local configuration data, installed patch levels, and registry settings. This eliminates the guesswork inherent in uncredentialed scans, where the scanner infers vulnerabilities fro remote banners and may flag correctly patched systems or miss actual issues. With credentials, the scanner can perform deeper checks, such as validating hotfixes or inspecting local security settings, producing more accurate results and dramatically fewer false positives. It also uncovers vulnerabilities only visible through authenticated access, such as weak password policies or misconfigured services.

• ✗

  Using a higher scan intensity

  Why it's wrong here

  Using a higher scan intensity increases the rate of concurrent connections, timeouts, and service probing aggressiveness. This may cause the scanner to receive incomplete or ambiguous responses from overloaded targets, leading it to misidentify services and flag false vulnerabilities. Intensity affects performance and network tolerance, not the precision of the detection logic, so it cannot reduce false positives. In fact, aggressive scanning can introduce more extraneous findings by interpreting transient network errors as vulnerabilities.

• ✗

  Scanning from multiple IP addresses

  Why it's wrong here

  Scanning from multiple IP addresses distributes the scan load and can help bypass rate limits or network path restrictions, but it does not alter the scanner's detection logic or how it interprets responses. False positives arise from plug-in logic and target response characteristics, which are independent of the source address. Using multiple sources may even introduce variability, because different paths or network segments can yield inconsistent responses, worsening false positives. It has no effect on reducing the number of false findings.

• ✗

  Scanning only during business hours

  Why it's wrong here

  Scanning only during business hours changes when the scan runs but has no effect on the scanner's detection mechanisms. False positives are produced by plug-ins misinterpreting target responses or lacking context, which is unrelated to the time of day. In fact, business hours might see live user activity or dynamic services that could complicate responses, potentially increasing noise. The accuracy of a scan depends on its configuration, not its schedule, so this does not reduce false positives.

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