Which Task Must Precede OPatch Patching of Grid Infrastructure 19c?
Short answer
C Update the PATH environment variable on the node where you will run the OPatch utility to point to $ORACLE_HOME/OPatch.
Question
Key Takeaways
This question tests the OPatch environment prerequisite for Grid Infrastructure 19c; the trap is assuming PATH must be updated on every cluster node or that staging the patch alone is the required step.
Patching Oracle Grid Infrastructure 19c with OPatch requires setting the PATH environment variable on the node where you will run the utility. This guide establishes that option C is the correct preparatory task, while staging on all nodes is unnecessary.
Common mistake: The most common wrong answer is B: staging the patch on the execution node is necessary for patching but does not satisfy the specific OPatch prerequisite the question asks about.
Expert Analysis
Why the Answer Is Correct
Oracle's documented procedure for patching Grid Infrastructure 19c with the standalone OPatch utility requires setting the PATH environment variable to include the $ORACLE_HOME/OPatch directory before invoking OPatch. Option C correctly scopes this to the node where you will actually run OPatch, because each cluster node has its own environment and its own Grid Infrastructure home in a non-shared configuration. This PATH update ensures the shell finds the opatch executable and that the correct GI home's OPatch is used. The question asks for the task that must be performed before running OPatch, and Oracle explicitly lists this environment setup as that prerequisite.
Why the Other Options Are Wrong
Option A is too broad because you do not need to change PATH on every cluster node, only on the node from which you execute OPatch. Option B describes staging the patch, which is a necessary part of the patching workflow but does not make the opatch command available or address OPatch's documented environment requirement. Option D is even broader than A and is unnecessary for a single OPatch execution because you can stage the patch only on the node you are patching. While some learners argue that opatch -oh can replace setting PATH, the exam follows Oracle's standard documented procedure, which includes the PATH update.
Community Comment Notes
lcoleandro reasoned that A is wrong because PATH is only needed on the node where you run OPatch, and selected C as the documented answer. avrely argued for B, noting that "you have to have patch files on a node being patched" and that -oh can substitute for $ORACLE_HOME, but that does not override Oracle's stated prerequisite for the OPatch utility. krwi1 highlighted the OPatch versus opatchauto distinction, explaining why patch staging scope is not the single best answer here. Tunglinfo9 called the question bad because a DBA "can use absolute path to use OPatch utility without setting PATH", which is technically true but not the exam's expected doctrine. The majority community vote for C aligns with the documentation-based reasoning.
Official Reference
This link opens the official vendor documentation in a new tab.
Exam Strategy
Focus on the scope word in the options: Oracle often requires environment changes only on the node where the command runs, not on every cluster node. For GI patching questions, separate OPatch (manual, per-node) from opatchauto (orchestrated, cluster-wide) to eliminate broad distractors like A and D.
Frequently Asked Questions
Why is staging the patch on the execution node not the correct answer?
Does PATH need to be set on every cluster node for OPatch?
Community Votes
66% of anonymous learners picked answer C. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 7 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 7
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Tunglinfo9 👍 1 Answered CI think it is a bad question. Techinically, DBA can use absolute path to use OPatch utility without setting PATH environment parameter. Also, the question is intended to ask which process must be done before issuing "OPatch" utility. As a result, if you would like to use "opatch version" to check the version of p6880 utility, you should set PATH parameter first. After that, you should stage the patch on the cluster where the OPatch utility will be executed. So, I would like to pickup "C: Update the PATH environment on the node where you will run..."
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krwi1 👍 1 Answered DI think the question is tricky... OPatch: A Java-based utility that enables the application and rollback of patches to Oracle software. OPatchauto: A patch orchestration tool that generates patching instructions specific to your target configuration and then uses OPatch to perform the patching operations without user intervention. for opatchauto the patch can be copied on 1 node for opatch utility the patch must be copied on all nodes The question is about Opatch - I think D is correct
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lcoleandro 👍 1 Answered CA: Incorrect. You only need to update the PATH on the node where you'll run OPatch, not on all nodes. B: Incorrect. Staging the patch on the execution node is essential but doesn't address updating the PATH. D: Incorrect. Staging the patch on all nodes is redundant and unnecessary. C: Correct. You must update the PATH environment variable on the node where you will run the OPatch utility to point to the $ORACLE_HOME/OPatch directory.
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avrely 👍 1 Answered BYou can use opatch -oh option instead of $ORACLE_HOME env but you have to have patch files on a node being patched. Thus, answer is B
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wiprooracle 👍 1D looks to be the answer, since the question is about using opatch with GI
Show 2 more comments
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Qwerus 👍 1 Answered Bpatch can be copied just on the 1 node
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217972f 👍 2 Answered CI think C
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