CIS-DF Ingest Practice Question
An administrator is configuring Data Source Precedence rules and notices unexpected attribute overwrites. Which THREE of the following conditions or settings can influence how Data Source Precedence behaves? (Choose three.)
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 exact case-sensitive string value used for the discovery source in the payload.
Precedence behavior is influenced by discovery source string matching, class inheritance hierarchies, and attribute-level configurations.
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 exact case-sensitive string value used for the discovery source in the payload.
Why this is correct
If discovery source strings do not match precisely, precedence rules fail to apply correctly.
- ✓
Whether the payload specifies handling for empty or null attribute values from lower-priority sources.
Why this is correct
Payload settings and engine properties determine whether empty values from low-priority sources overwrite existing data.
- ✗
The number of active user sessions currently logged into the ServiceNow instance.
Why it's wrong here
Concurrent user sessions have zero impact on IRE Data Source Precedence evaluation.
- ✗
Whether the attribute being updated is included in the class's identification rule criteria.
Why it's wrong here
Identification criteria attributes are used for matching, while precedence governs attribute-level overwrites independently.
- ✓
Whether precedence rules are defined at the parent class level or overridden at a child class level.
Why this is correct
Class-specific precedence rules inherit from parent classes but can be overridden on child classes in CI Class Manager.
About these practice questions
This CIS-DF question is part of Courseiva's 320-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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.