312-85 Exam Dumps : Certified Threat Intelligence Analyst (CTIA)

Passive DNS monitoring involves collecting data about DNS queries and responses without actively querying DNS servers, thereby not altering or interfering with DNS traffic. This technique allows analysts to track changes in DNS records and observe patterns that may indicate malicious activity. In the scenario described, Enrique is employing passive DNS monitoring by using a recursive DNS server to log the responses received from name servers, storing these logs in a central database for analysis. This approach is effective for identifying malicious domains, mapping malware campaigns, and understanding threat actors' infrastructure without alerting them to the fact that they are being monitored. This method is distinct from active techniques such as DNS interrogation or zone transfers, which involve sending queries to DNS servers, and dynamic DNS, which refers to the automatic updating of DNS records.

Centralized storage architecture refers to a system where data is stored in a localized system, server, or storage hardware. This type of storage is capable of holding a limited amount of data in its database and is locally available for data usage. Centralized storage is commonly used in smaller organizations or specific departments within larger organizations where the volume of data is manageable and does not require the scalability offered by distributed or cloud storage solutions. Centralized storage systems simplify data management and access but might present challenges in terms of scalability and data recovery.

The exchange of attack techniques, compromised systems, and immediate defensive actions represents Tactical Threat Intelligence sharing.

Tactical Threat Intelligence focuses on adversary Tactics, Techniques, and Procedures (TTPs) and helps defenders understand and counter ongoing attacks in real time.

Why the Other Options Are Incorrect:

B. Operational: Focuses on broader attack campaigns and contextual analysis.

C. Strategic: Provides high-level, long-term insights for executives.

D. Technical: Concerns low-level indicators like IPs and file hashes, not methodologies or immediate actions.

Conclusion:

The collaboration involves Tactical Threat Intelligence, which centers on sharing actionable TTPs and response techniques.

Final Answer: A. Sharing tactical threat intelligence

Explanation Reference (Based on CTIA Study Concepts):

CTIA defines tactical threat intelligence as intelligence describing attacker behaviors and techniques that can be acted upon immediately by defenders.