CIS-DF Configuration Practice Question
An administrator needs to create a new custom Configuration Item class for specialized industrial IoT gateways that inherit base attributes from the Hardware class. Which table should be the parent table for this new class?
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
✓
cmdb_ci_hardware
Custom CI classes representing physical hardware typically inherit from the cmdb_ci_hardware table to leverage existing hardware attributes and identification rules.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
cmdb_rel_ci
Why it's wrong here
cmdb_rel_ci is the table used for storing relationships between configuration items, not for class hierarchy.
- ✗
cmdb_ci
Why it's wrong here
Inheriting directly from cmdb_ci is too generic and bypasses standard hardware attributes.
- ✓
cmdb_ci_hardware
Why this is correct
Hardware-related CIs should inherit from cmdb_ci_hardware to ensure proper tracking and attribute inheritance.
- ✗
cmdb
Why it's wrong here
The cmdb table is the root table for the database, not a specific CI class.
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.