ServiceNow CIS-DF free question 3 / 10 · Domain 2: Ingest
What makes up a relationship in the CMDB?
- A parent CI, a child CI, and a relationship type
- A child CI, a relationship type, and an ID rule
- A parent CI, a relationship type, and a scan time
- A parent CI, a child CI, and a discovery source
Show the answer and explanation
Answer: A
Why this is correct
A relationship in the CMDB consists of two CIs and a relationship type: the parent CI, the child CI, and the type of the relationship that links both CIs.
Why the other options are wrong
"A parent CI, a child CI, and a discovery source" … The discovery source is not part of the relationship itself. For non-dependent relationships, it is tracked separately in the Relationship Sources [sys_rel_source] table.
"A parent CI, a relationship type, and a scan time" … The child CI is missing. A relationship always links two CIs. The last scanned time is tracked in Relationship Sources, not in the relationship.
"A child CI, a relationship type, and an ID rule" … The parent CI is missing, and identification rules are a mechanism for uniquely identifying CIs, not a part of a relationship.
Key point
Unlike a static asset list, the CMDB tracks not only the CIs but also the relationships between them.
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