CIS-DF Ingest Practice Question
An administrator notices that when Discovery updates a virtual machine, the 'Environment' attribute populated by a manual spreadsheet import is overwritten, despite Data Source Precedence rules being configured. Upon investigation, they find that both sources are writing with the exact same discovery source string value. What is the correct way to resolve this conflict?
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
✓
Configure the manual import to use a distinct discovery source string (e.g., 'Manual Import' or 'Spreadsheet') rather than sharing the default discovery source string.
If two different workflows or integrations use the exact same discovery source string, the IRE treats them as the same entity and precedence rules cannot distinguish between them.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable 'Coalesce' on the spreadsheet import transform map.
Why it's wrong here
Coalescing only affects record matching during import, not the discovery source identity used by the IRE.
- ✓
Configure the manual import to use a distinct discovery source string (e.g., 'Manual Import' or 'Spreadsheet') rather than sharing the default discovery source string.
Why this is correct
Distinct discovery source strings are required for Data Source Precedence rules to differentiate and prioritize attribute updates.
- ✗
Modify the CI Class Manager identification rule to exclude the Environment attribute.
Why it's wrong here
Identification rules determine matching criteria, not attribute-level ownership or update precedence.
- ✗
Set the table to read-only for the discovery integration user.
Why it's wrong here
This would stop Discovery from updating any server attributes.
Visual reference
About these practice questions
Courseiva writes every CIS-DF question from scratch — 320 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official ServiceNow exam blueprint
This CIS-DF 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 CIS-DF exam.