1Z0-1072-26 Database Practice Question
You are managing an Oracle Base Database System (DB System) on OCI and need to minimize downtime during a planned operating system patching cycle. Which action should you perform to achieve this for a 2-node RAC DB System?
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
✓
Perform a rolling patch on one node at a time using the OCI console or CLI.
For a 2-node RAC DB System, patching is performed in a rolling fashion node by node to maintain high availability and minimize downtime.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Apply the patch simultaneously to both nodes to ensure the cluster remains synchronized.
Why it's wrong here
Applying patches simultaneously on both nodes will cause downtime for the entire RAC database.
- ✗
Take a full manual backup, terminate the DB System, and reprovision with the new patched image.
Why it's wrong here
Terminating and reprovisioning is inefficient and introduces unnecessary downtime compared to rolling patches.
- ✓
Perform a rolling patch on one node at a time using the OCI console or CLI.
Why this is correct
Rolling patches allow you to patch one database home or node at a time, keeping the other node operational and ensuring zero downtime.
- ✗
Convert the 2-node RAC to a Single Instance database, patch it, and convert it back.
Why it's wrong here
Converting back and forth between Single Instance and RAC is complex, disruptive, and unnecessary.
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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 Oracle exam blueprint
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