CIS-DF Ingest Practice Question
An organization ingests data from two different cloud providers into the CMDB. Provider A populates virtual machines with a serial number, while Provider B populates virtual machines with a BIOS UUID but no serial number. Both providers use the same identification rule which requires serial number. Consequently, Provider B records fail identification and create duplicates. How should the identification rules be configured to correctly handle both providers?
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 multiple identification rule entries in CI Class Manager: Entry 1 using serial number, and Entry 2 using BIOS UUID.
To handle multiple identification identifiers across different providers, administrators can configure multiple identification rule entries (e.g., Entry 1 for Serial Number, Entry 2 for BIOS UUID).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable identification rules and rely on legacy transform map coalescing.
Why it's wrong here
Disabling identification rules breaks the IRE and causes severe data duplication.
- ✗
Create a Business Rule to copy the BIOS UUID into the serial number field before ingestion.
Why it's wrong here
Modifying core identity attributes with synthetic values violates data integrity standards when proper multi-entry identification rules can be configured.
- ✗
Combine serial number and BIOS UUID into a single compound identification rule entry with an AND operator.
Why it's wrong here
An AND operator would require both attributes to be present, which would cause Provider B's records to fail because they lack a serial number.
- ✓
Configure multiple identification rule entries in CI Class Manager: Entry 1 using serial number, and Entry 2 using BIOS UUID.
Why this is correct
Multiple identification rule entries allow the IRE to try serial number first, and fall back to BIOS UUID if serial number is missing or unmatched.
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.