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A network sensor must detect exploit traffic using packet payload signatures and generate alerts without blocking traffic. Which deployment is BEST? In the alert triage phase, Which action gives the analyst the clearest next triage step?

Question 1mediummultiple choice
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A network sensor must detect exploit traffic using packet payload signatures and generate alerts without blocking traffic. Which deployment is BEST? In the alert triage phase, Which action gives the analyst the clearest next triage step?

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Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Best answer

Suricata or Snort in IDS mode on a monitored network tap or SPAN port

IDS mode observes traffic and alerts on signatures while avoiding inline blocking impact.

B

Distractor review

A vulnerability scanner run once per quarter

Quarterly scans do not provide continuous packet-level detection.

C

Distractor review

Host-based file integrity monitoring only

FIM detects file changes on hosts, not network exploit payloads.

D

Distractor review

Inline IPS mode with drop rules for all signatures

Inline blocking can be useful, but the requirement is detection without blocking.

Common exam trap

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Technical deep dive

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

  • Static NAT maps one inside address to one outside address.
  • PAT allows many inside hosts to share one public address using ports.
  • Inside local and inside global describe the private and translated addresses.
  • NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

  • Identify inside and outside interfaces first.
  • Check whether the scenario needs static NAT, dynamic NAT or PAT.
  • Do not confuse NAT matching ACLs with normal packet-filtering intent.

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More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

Question 1

A responder is acquiring evidence from a potentially compromised server. Which actions support forensic integrity? (Choose two.)

Question 2

A SOC wants to reduce alert fatigue without missing confirmed malicious activity. Which actions are appropriate? (Choose two.)

Question 3

A user reports approving an unexpected OAuth consent prompt for an app named 'Invoice Reader'. The app now has mailbox read permissions. What should the incident responder do first? During detection and analysis, which decision is most defensible?

Question 4

A business owner accepts delayed remediation for a production system. What must the report include? If the primary audience is business service owner, which content choice is most appropriate?

Question 5

A business owner accepts delayed remediation for a production system. What must the report include? If the primary audience is legal/privacy stakeholder, which content choice is most appropriate?

Question 6

A host alert shows certutil.exe downloading a file from an external URL, followed by execution from a user-writable directory. What should the analyst focus on? In the containment trade-off phase, Which response balances containment with evidence preservation?

FAQ

Questions learners often ask

What does this CS0-003 question test?

Static NAT maps one inside address to one outside address.

What is the correct answer to this question?

The correct answer is: Suricata or Snort in IDS mode on a monitored network tap or SPAN port — IDS mode observes traffic and alerts on signatures while avoiding inline blocking impact. This keeps the analysis focused on alert triage rather than broad, low-value actions.

What should I do if I get this CS0-003 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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