SNOW-CAD Integrating and managing application data Practice Question
A ServiceNow admin is troubleshooting a data import from an external database via JDBC. The import runs successfully but only loads partial data. Which is the most likely cause?
⚠ Common exam trap
Many candidates assume partial data is due to a transform map filter or field mapping error, but the key clue is that the import 'runs successfully' — meaning no errors — which points to a silent cap on row retrieval rather than a configuration or interruption issue.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The JDBC driver has a default row limit that caps the number of records imported
JDBC drivers often impose a default row limit (e.g., 10,000 rows) to prevent memory overload during data retrieval. When importing from an external database via JDBC, this limit caps the number of records returned, causing only partial data to load even though the import job completes successfully. The admin must explicitly set the fetch size or disable the row limit in the JDBC URL or driver configuration to import all records.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The scheduled import job was interrupted by another job
Why it's wrong here
Job interruption would cause failure, not partial load.
- ✗
The transform map has a filter that excludes certain records
Why it's wrong here
Filters on the transform map affect which records are processed, but the question states partial data, not missing specific types.
- ✗
The field mapping is incorrect and some fields are not being populated
Why it's wrong here
Incorrect field mapping would result in empty fields, not fewer rows.
- ✓
The JDBC driver has a default row limit that caps the number of records imported
Why this is correct
ServiceNow JDBC imports have a default limit of 50,000 rows, which can be adjusted in the datasource configuration.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SNOW-CAD practice question is part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SNOW-CAD exam.