CAS-005 Exam Dumps : CompTIA SecurityX Certification Exam

To keep the mail server up to date with indicators of compromise (IoCs) and block known-malicious emails, the security architect needs mechanisms to ingest new threat intelligence and apply it dynamically. The best solutions are:

Threat Feed API (B): This provides automated updates from external or commercial threat intelligence providers. By integrating a threat feed, the mail server can regularly fetch IoCs such as malicious domains, IPs, or attachment hashes.

Webhooks (D): These allow real-time or near real-time updates when new IoCs are published. Instead of waiting for scheduled pulls, the mail server can receive push notifications with updated indicators, ensuring rapid response to evolving threats.

Other options are less effective. Log analyzers (A) assist with monitoring but don’t actively update or block threats. A scheduled task (C) may automate local operations but lacks the external intelligence integration required. Inbox deletion code (E) is reactive and inefficient. A security runbook (F) defines processes but does not technically enable automated updates.

Thus, the combination of Threat Feed APIs and Webhooks provides continuous, automated IoC ingestion, reducing exposure to malicious email campaigns.

Phishing simulations are a proven method for reinforcing security awareness, meeting compliance training requirements, and improving user incident reporting. In CAS-005, social engineering testing is a recommended component of organizational security culture programs.

DoS attacks (A) and penetration tests (B) assess technical security, not user awareness.

Fake ransomware (D) can cause unnecessary alarm and operational disruption.

The Common Vulnerability Scoring System (CVSS) v3.1 uses three metric groups to calculate overall scores:Base,Temporal, andEnvironmental.

Base (E):Mandatory metrics assessing exploitability (e.g., attack vector) and impact (confidentiality, integrity, availability).

Temporal (A):Optional metrics reflecting the current state of the vulnerability (e.g., exploit availability, remediation level).

Environmental (F):Optional metrics tailoring the score to the organization’s context (e.g., security requirements).

B, C, D (Availability, Integrity, Confidentiality):These are subcomponents of the Base Impact metrics, not standalone groups.

G (Impact):A categorywithin Base, not a group.

H (Attack vector):A single Base metric, not a group.