Security Operations and Monitoring
What this domain tests
Security Operations and Monitoring tests how a SOC turns telemetry into reliable action: logging pipelines, SIEM correlation, IDS and IPS tuning, EDR, vulnerability and configuration management, baselines, playbooks, and metrics. Expect questions on alert quality and operational tradeoffs.
Core rules
- Centralize logs with time sync, integrity, retention, and access control; monitor identity, endpoint, network, and cloud control planes.
- IDS detects and alerts; IPS blocks inline; neither replaces endpoint detection or asset context.
- Tune rules with validated context, not by disabling noisy detections. Use allowlists with expiry, enrich with asset criticality, and track false-positive rates.
- Vulnerability management prioritizes by exploitability and exposure, not CVSS alone. Configuration baselines and patch SLAs reduce known attack surface.
- Playbooks define triage, escalation, containment, and evidence steps; metrics should measure detection and response, not just alert volume.
Worked example
An IDS rule fires repeatedly on SMB admin traffic from a jump host to servers. Instead of disabling the rule, verify the jump host is authorized, confirm the traffic matches the maintenance window, add a scoped, expiring exception for that source-to-destination pair, and keep alerting on SMB from other sources. Reasoning: the activity is expected but the detection remains valuable; a broad disable would hide lateral movement. Document the exception and review it.
Traps
Disabling a noisy signature; monitoring only perimeter firewalls; treating IPS blocking as complete prevention; ignoring clock skew; and measuring success by alert count rather than validated detections and response time.