20+ practice questions focused on Database Administration and CMDB — one of the most tested topics on the ServiceNow Certified System Administrator CSA exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Database Administration and CMDB PracticeWhich TWO are valid methods to populate the CMDB with configuration items?
Explanation: ServiceNow Discovery (B) automatically scans the network and populates the CMDB with CIs identified through probes and sensors. Importing a CSV file using the Import Set feature (E) is also a valid method, as it allows structured data to be loaded into the CMDB via a staging table and transform maps. Option C, manually creating CIs, is not considered a 'populate' method as it is a manual, one-at-a-time entry. Option A, the 'CMDB Import' application, does not exist as a standard application. Option D, LDAP integration, synchronizes users and groups, not CIs.
An administrator is investigating a performance issue where a script that queries the task table with a JOIN to the cmdb_ci table is slow. Which two actions can improve query performance? (Select two.)
Explanation: Adding an index on the `cmdb_ci` field of the `task` table allows the database to quickly locate matching rows without scanning the entire table, significantly speeding up the JOIN operation. In ServiceNow, indexes are database-level structures that reduce I/O and improve query performance for filtered or joined columns. Option D is incorrect because creating a database view does not improve performance – views in ServiceNow are not materialized and only store the query logic; they do not pre-join or cache data.
A ServiceNow CSA is tasked with ensuring that all CIs in the CMDB have an accurate 'Asset Tag' field. Some records show 'No asset tag' as a value. Which method can prevent this in the future?
Explanation: A data policy can enforce that the 'Asset Tag' field does not contain the specific string 'No asset tag' by using a condition script. Default values only populate the field at creation but do not prevent users from manually entering unwanted values like 'No asset tag' later. A data policy with a pattern requirement can block such invalid entries, ensuring data integrity.
A ServiceNow administrator notices that a CI record in the CMDB is not being updated by a scheduled discovery job. The CI is a Linux server that is reachable on the network. Which is the most likely cause?
Explanation: When a CI is classified under a different CI class in the CMDB, the scheduled discovery job may not update it because discovery uses the IRE to match incoming data against existing CIs based on identification rules. If the CI's class differs from what the discovery payload expects, the IRE may fail to reconcile the record, or the update may be directed to a different class table, leaving the original CI unchanged. This is a common cause of apparent update failures when the CI is reachable and the discovery source is correctly configured.
A consultant is designing the CMDB for a large enterprise. The company wants to track relationships between business services, applications, and infrastructure components. Which relationship model should be used to represent that a business service depends on an application, which in turn depends on a server?
Explanation: A dependency relationship (structural) is the correct model because it explicitly captures the directional 'depends on' nature of the chain: a business service relies on an application, which in turn relies on a server. In ServiceNow CMDB, structural dependency relationships (e.g., 'Depends on' or 'Used by') are designed to represent these hierarchical, transitive dependencies between CIs, enabling impact analysis and root cause mapping.
+15 more Database Administration and CMDB questions available
Practice all Database Administration and CMDB questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Database Administration and CMDB. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Database Administration and CMDB questions on the SNOW-CSA frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Database Administration and CMDB is tested as part of the ServiceNow Certified System Administrator CSA blueprint. Practicing with targeted Database Administration and CMDB questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Database Administration and CMDB is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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