CIS-DF Practice Question: Your organization wants to understand the impact of a failing database server on…
Your organization wants to understand the impact of a failing database server on dependent business applications. Which component of the CMDB architecture must be configured to establish this dependency link?
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
✓
Configuration Item Relationship (cmdb_rel_ci)
Relationships between configuration items are stored in the Configuration Item Relationship table (cmdb_rel_ci), defining how CIs depend on or connect to one another.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
CI Class Manager
Why it's wrong here
CI Class Manager defines class hierarchies, attributes and identification rules for CI types; it holds no relationship data. The CI Relationship Editor is where dependency links between the database server and dependent applications are created. CI Class Manager would be the right component when adding a new CI class or editing its attributes.
- ✓
Configuration Item Relationship (cmdb_rel_ci)
Why this is correct
The cmdb_rel_ci table stores parent-child relationships between configuration items, so linking the database server CI to dependent application CIs exposes the downstream business impact of its failure. Without these relationship records, no dependency mapping or impact analysis is possible.
- ✗
Identification and Reconciliation Engine (IRE)
Why it's wrong here
IRE matches and merges discovered records into CIs; it does not model service dependencies. It is tempting because IRE governs CMDB data integrity, but dependency mapping between a database server and business applications relies on the Service Mapping or dependency relationship configuration, not reconciliation.
- ✗
Discovery Schedule
Why it's wrong here
Discovery Schedules control when and how often discovery runs against targets; they populate CIs but create no dependency links. The CI Relationship Editor is where the database server is mapped to dependent applications. A Discovery Schedule would be correct when configuring recurring discovery of new servers on a subnet.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Security Systems Architect · 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.