CIS-DF Configuration Practice Question
An administrator is reviewing class hierarchy design principles in the CMDB. Which TWO statements describe the purpose of extending existing CI classes rather than creating independent base tables? (Choose two.)
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
✓
Inherited classes ensure proper compatibility with CMDB Health, IRE, and Dependency Views.
Extending existing classes allows inheritance of standard attributes, relationships, and ensures compatibility with CMDB tools like Discovery and CSDM.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Inherited classes ensure proper compatibility with CMDB Health, IRE, and Dependency Views.
Why this is correct
Using proper class hierarchy ensures tools like Dependency Views and IRE recognize and process the CIs.
- ✓
Child classes automatically inherit standard attributes and behaviors from their parent class.
Why this is correct
Inheritance is a primary benefit of extending existing CI classes.
- ✗
Independent base tables provide better integration with out-of-the-box Service Graph Connectors automatically.
Why it's wrong here
Independent tables lacking standard parents or IRE rules will not integrate automatically with Service Graph Connectors.
- ✗
Extending base tables allows CIs to bypass mandatory access control lists (ACLs).
Why it's wrong here
Table extension does not bypass ACL security controls.
- ✗
Creating independent tables eliminates the need for any identification rules.
Why it's wrong here
All CMDB tables benefit from identification rules to maintain data quality.
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.