Free Oracle 1Z0-902 Exam Questions

Become Oracle Certified with updated 1Z0-902 exam questions and correct answers

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Total 85 Questions | Updated On: Dec 17, 2025

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Question 1

You are adding a disk expansion kit to a running Exadata X8M Database Machine's Database Servers, and have a filesystem layout that includes:

After running the following commands, which command needs to be run to add 20G of space to the filesystem mounted on /u01?

A : # lvextend -L +20G —verbose /dev/mapper/VGExaDb-LVDbOral

B : # xfs_growfs /uOl +20G

C : # resize2fs +20G /dev/VGExaDb/LVDbOral

D : # lvextend -L +20G —verbose /dev/VGExaDb/LVDbOral

Answer: A

Question 2

Which two statements are true about enabling write-back flash cache?

A : Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.

B : Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.

C : When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.

D : Before write-back flash cache is enabled, you need to drop the Flash Cache first.

E : When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.

Answer: A,D

Question 3

Which statement is FALSE about the OEDA command line interface (OEDACU)?

A : Add nodes to and remove nodes from a VM cluster.

B : Add or remove additional databases.

C : Resize Oracle ASM disk groups.

D : Support ZDLRA life cycle management operation.

E : Add or remove Oracle Database home directories.

F : OEDACU has Edit mode and Deploy mode.

Answer: D

Question 4

How do ASM failure groups provide redundancy?

A : Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.

B : Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.

C : They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.

D : Extended Redundancy mirrors data across data centers providing the highest levels of data protection.

Answer: B

Question 5

Which two Exadata security features would you configure to control which databases can access which griddisks, when multiple databases share space on your storage servers in an unpartitioned storage grid?

A : Exadata storage realms using ASM-scoped security mode

B : File permissions on the griddisks in each database server

C : Using EXADCLI instead of CELLCLI to create the griddisks

D : File permissions on the griddisks in each storage server

E : Exadata storage realms using database-scoped security mode

Answer: A,E

Page: 1 / 17

Total 85 Questions | Updated On: Dec 17, 2025

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