CS0-003 Domain 1: Security Operations

Which data source shows DNS queries leaving the network?

Multiple choice — select one answer

Answer choices

  1. a. Initial Access
  2. b. Query proxy/DNS for rare newly seen domains
  3. c. DNS logs / passive DNS
  4. d. Same account logins from distant geos quickly

Architectural breakdown & explanation

DNS telemetry reveals C2 and exfil domains.

Correct answer(s): c. DNS logs / passive DNS

Exam domain: Domain 1: Security Operations (33% weight on the official guide).

Official documentation & study links

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