Define Long Tail Analysis, Outlier Detection, and Some Common Steps of Hypothesis Hunting with Splunk. SPLK-5001 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In the context of threat hunting, what is a 'hypothesis'?

   • AA proposed explanation for a potential security threat that can be tested against data
   • BA confirmed security incident that has been fully investigated
   • CA set of rules used to automatically block malicious traffic
   • DA summary of all security events that occurred in a given time period
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   How can Splunk be used to support outlier detection in a hypothesis hunting workflow?

   • ABy storing all data in a separate database that is not searchable
   • BBy using statistical commands to compare current data against a baseline and flag deviations
   • CBy requiring the analyst to manually review every single event without any statistical assistance
   • DBy automatically blocking any IP address that appears in the logs
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which Splunk search command is commonly used to perform long tail analysis by showing the frequency distribution of field values?

   • Arare
   • Beventstats
   • Ctop
   • Dstats
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A Splunk analyst is monitoring outbound DNS traffic and wants to flag domain names that deviate from the typical query patterns seen in the environment. The analyst has a baseline of the average number of queries per domain over the past 30 days. Which Splunk approach is most appropriate for identifying outlier domains?

   • AUse `rare` to find domains with the fewest queries
   • BUse `top` to list the domains with the highest query counts
   • CUse `eventstats` to compute the average and then filter for domains with counts above the average
   • DUse the `outlier` command on the count of queries per domain to identify values that fall outside the expected range
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A threat hunter suspects that attackers may be using PowerShell to download payloads from file-sharing sites, based on a recent industry report. The hunter wants to proactively search for evidence of this behavior in the environment. According to the hypothesis hunting process, what should the hunter do first?

   • AFormulate a testable hypothesis, such as 'PowerShell is being used to download files from file-sharing domains'
   • BImmediately block all file-sharing domains in the firewall
   • CRun a broad search for all PowerShell activity in the last 30 days
   • DReview the latest threat intelligence reports to confirm the report is accurate
   Reveal Solution Discussion Select an answer first