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1z0-497 Oracle Database 12c Essentials Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Oracle 1z0-497 Oracle Database 12c Essentials certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 150 questions

Which two statements about multitenant architecture are true?

A.

Multiple PDBs on a single server need multiple database instances and multiple sets of database files.

B.

Although consolidated into a single physical database, PDBs mimic the behavior of non-CDBs.

C.

A PDB administrator can use Oracle Flashback or point-in-time recovery to retrieve lost data from a PDB, only by shutting down all the PDBs from the CDB.

D.

It is easier to collect performance metrics for many databases in a CDB than individual non-CDB databases.

E.

It takes more time to apply a patch to one CDB that holds hundreds of PDBs than to hundreds of non-CDB databases.

Identify three key properties of a transaction in Oracle Database 12c.

A.

durability

B.

consistency

C.

concurrency

D.

isolation

E.

scalability

F.

manageability

Which type of information is included in dynamic performance views?

1 - System and session parameters

2 - Memory usage and allocation

3 - File states (including RMAN backup files)

4 - Progress of jobs and tasks

5 - SQL execution

6 - Statistics and metrics

A.

3, 4, and 5

B.

1, 2, 5, and 6

C.

1, 2, 3, and 4

D.

2, 3, 5, and 6

E.

2, 3, 4, 5, and 6

F.

1, 2, 3, 4, 5, and 6

Your customer wants to migrate their production database from Oracle Database 10gon AIX to Oracle Database 12con Solaris, and is concerned about the downtime. Which Oracle solution would you recommend?

A.

Active Data Guard

B.

Oracle GoldenGate

C.

Oracle Real Application Clusters

D.

Oracle Transportable Tablespaces

E.

Oracle Cloud Platform as a Service

You are about to apply a patch to a database. Which recommended action is incorrect?

A.

You should check the patch conflict with installed patches before applying the patch.

B.

You should make sure that you have a good backup of the software, database, and configuration files.

C.

You should install the latest O patch before applying the patch.

D.

You should check the fifth digit of the release information to confirm that the Patch Set Update (PSU) is applied successfully.

E.

You should stop all applications running from the software directory that is being patched.

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Total 150 questions
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