Which three are true about OPatch?

Question

Options

• AIt requires installation of Oracle Universal Installer.
• BIt supports Rolling Patching.
• CIt must be invoked as the user that owns the software being patched.
• DIt is a Java-based utility for applying patchsets.
• EIt is platform independent.
• FIt can be used to apply interim patches to the Grid Infrastructure and Database Home

• B
  93% (37)
• D
  5% (2)
• E
  3% (1)

Explanation

OPatch supports Rolling Patching (B), which allows patches to be applied one node at a time in RAC environments, keeping the cluster available during maintenance. It must be invoked as the software owner (C) - typically the oracle OS user - because it needs write access to the Oracle home and running it as root or another user will fail. It applies to both Grid Infrastructure and Database homes (F), making it the go-to tool for interim (one-off) patches across both environments.

Why the distractors are wrong:

• A - OPatch is a standalone utility; it does not require Oracle Universal Installer to be separately installed.
• D - While OPatch is Java-based, it applies interim patches, not patchsets. Patchsets are applied using the full Oracle installer.
• E - OPatch is platform-specific; separate binaries exist for Linux, Windows, Solaris, etc.

Memory tip: Think "RCI" gone wrong - OPatch does Rolling patches, requires Correct user, and works on both Infrastructure/DB homes. The trap answers all contain a grain of truth (it is Java-based; it does use some OUI libraries) - but each flips one key fact, so focus on what OPatch cannot do: work cross-platform or touch patchsets.

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