SNOW-CSA Database Administration and CMDB Practice Question
Which TWO of the following are valid CMDB base classes? (Choose exactly 2.)
⚠ Common exam trap
The trap here is that candidates often mistake common CI types like `cmdb_ci_win_system` or `cmdb_ci_computer` for base classes because they appear frequently in CMDB tables, but ServiceNow defines only a few true base classes (e.g., `cmdb_ci`, `cmdb_ci_service`, `cmdb_ci_infrastructure`) from which all others inherit.
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
In ServiceNow, the CMDB base classes are the top-level classes from which all other configuration items (CIs) inherit. `cmdb_ci` is the root base class for all CIs, and `cmdb_ci_service` is a base class specifically for business and technical services. Both are defined in the CMDB data model as foundation classes that cannot be deleted and serve as parents for more specific CI types.
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_ci_win_system
Why it's wrong here
This is a child class of cmdb_ci_computer.
- ✓
cmdb_ci
Why this is correct
This is the root CMDB CI table.
- ✗
cmdb_ci_linux_system
Why it's wrong here
This is a child class of cmdb_ci_computer.
- ✓
cmdb_ci_service
Why this is correct
This is a base class for services.
- ✗
cmdb_ci_computer
Why it's wrong here
This is a child class of cmdb_ci.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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