Oracle Exam 1Z0-497 Topic 7 Question 5 Discussion

Actual exam question for Oracle's 1Z0-497 exam

Question #: 5
Topic #: 7

Which two statements about multitenant architecture are true?

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

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

CA 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.

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

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

Show Suggested Answer

Suggested Answer: B, D

B: A PDB is a portable collection of schemas, schema objects, and nonschema objects that appears to an Oracle Net client as a non-CDB. All Oracle databases before Oracle Database 12c were non-CDBs.

D: Ease of performance tuning

It is easier to collect performance metrics for a single database than for multiple databases. It is easier to size one SGA than 100 SGAs.

Benefits of the Multitenant Architecture for Database Consolidation

URL: http://docs.oracle.com/cd/E16655_01/server.121/e17633/cdbovrvw.htm#CNCPT89239

by Mattie at May 09, 2022, 12:27 PM

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