Splunk SPLK-5003 Exam Actual Questions
Splunk Certified Cybersecurity Defense Architect (Page 2 )

Updated On: 11-Aug-2026

Sophia manages data ingestion for her organization’s SIEM. The data science team wants to perform real-time analytics on security data and asks Sophia for a copy of all new endpoint telemetry from the current point forward. The SIEM currently collects 15TB of endpoint telemetry every day.
Which of the following solutions can Sophia use to best help the data science team?

  1. Export the last 12 months of telemetry data from the SIEM in OCSF.
  2. Use a message bus to send data to both the SIEM and data science team.
  3. Export the last 12 months of telemetry data from the SIEM in JSON format.
  4. Configure the SIEM to export a CSV report of all new telemetry data every night.

Answer(s): B

Explanation:

A message bus is the best solution because it enables endpoint telemetry to be streamed from the point of collection to multiple consumers in real time. This supports both SIEM ingestion and the data science team’s analytics needs without relying on large historical exports, delayed batch reports, or inefficient nightly file generation for 15TB of daily telemetry.



To ensure leadership is aware of the security team’s performance, which measurements should be presented on a regular basis? (Choose all that apply.)

  1. Patch compliance percentage
  2. Mean time to contain
  3. Number of emergency change requests
  4. Mean time to respond

Answer(s): A,B,D

Explanation:

Security leadership should regularly receive performance measurements that show how effectively the team reduces risk and handles incidents. Patch compliance percentage reflects vulnerability management effectiveness, while mean time to contain and mean time to respond measure the speed and efficiency of incident response operations.



Justin has just finished successfully importing data from the CMDB platform into the SIEM.
While validating data, he discovers a host with a MAC address (35:33:33:20:76) that does not have the same OUI (03:83:71) as the rest of the deployed devices.
Which of the following is the most likely explanation for this discrepancy?

  1. CMDB contains data from personal devices managed under MDM
  2. CMDB data was normalized during the SIEM import process
  3. CMDB data was corrupted during the export process
  4. CMDB contains data related to dynamic VPN pool addresses

Answer(s): A

Explanation:

A different OUI indicates the MAC address likely belongs to hardware from a different vendor than the organization’s standard deployed devices. Personal or BYOD devices managed through MDM can appear in the CMDB with different vendor OUIs, making this the most likely explanation.



Which of the following are common criteria used for the evaluation of threat intelligence feeds? (Choose all that apply.)

  1. TLP
  2. Industry
  3. Source
  4. Severity

Answer(s): A,B,C,D

Explanation:

Threat intelligence feeds are commonly evaluated by handling requirements, relevance to the organization’s industry, trustworthiness of the source, and severity or risk value of the indicators. These criteria help determine whether a feed is actionable, appropriate to share, and useful for security operations.



Which MLTK command can be combined with tstats in an ES detection to apply a machine learning model to search results?

  1. Summary
  2. Fit
  3. Cluster
  4. Sample

Answer(s): B

Explanation:

The fit command is used in the Machine Learning Toolkit to train or apply a machine learning model to search results. In an Enterprise Security detection, it can be combined with tstats output so the model can analyze summarized event data efficiently.



An architect is planning for a net new SIEM deployment.
Which of the following data sources will provide the most immediate security value?

  1. Physical access control logs
  2. Active Directory logs
  3. CMDB logs
  4. Security tool alerts

Answer(s): D

Explanation:

Security tool alerts provide the most immediate value because they are already security-focused, enriched by existing controls, and directly tied to suspicious or malicious activity. In a new SIEM deployment, this gives analysts actionable detections quickly while broader raw telemetry sources are onboarded and tuned.



How can a threat intelligence team discover additional Indicators Of Compromise (IOCs) from threat actor payloads?

  1. Submit the payload to Splunk Intelligence Management.
  2. Submit the payload to Mission Control.
  3. Submit the payload to Behavioral Analytics.
  4. Submit the payload to Splunk Attack Analyzer.

Answer(s): D

Explanation:

Splunk Attack Analyzer is designed to analyze suspicious payloads and artifacts, extract related observables, and identify additional indicators of compromise. This helps threat intelligence teams expand their understanding of attacker infrastructure, files, URLs, and other related threat evidence.



Which of the following is the most direct way to measure a detection engineering practice to understand what gaps may exist in security controls and program effectiveness?

  1. Measure Mean Time to Detect (MTTD) threats.
  2. Measure the number of true positive security alerts created per environment.
  3. Measure security control coverage against industry frameworks and organizational risks.
  4. Measure the number of detections created per quarter.

Answer(s): C

Explanation:

Measuring security control coverage against industry frameworks and organizational risks is the most direct way to identify detection gaps and assess program effectiveness. It shows whether detections align with expected threat behaviors, business risk, and required security outcomes.



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