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To take the Oracle 1z1-902 exam, candidates must have a solid understanding of database concepts and architecture, as well as experience with Oracle database administration and management. They should also be familiar with the Exadata Database Machine X8M hardware and software components, including the storage servers, database servers, InfiniBand network, and Exadata software. Additionally, candidates should be familiar with backup and recovery strategies, as well as performance tuning techniques.

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Oracle 1z1-902 is an essential certification exam for individuals who want to demonstrate their expertise in implementing Oracle Exadata Database Machine X8M. Oracle Exadata Database Machine X8M Implementation Essentials certification exam is designed for IT professionals, database administrators, and implementation specialists who are responsible for managing and implementing the Oracle Exadata Database Machine X8M.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q44-Q49):

NEW QUESTION # 44
You have been tasked with replacing a memory module of an Exadata Storage Server and need to power off the affected storage server. Which two commands must you execute to safely power off the storage server in an Exadata X9M Database Machine?

A. CellCLI alter GRIDDISK all inactive on the affected storage server
B. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
C. CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server
D. shutdown -h now' on the affected storage server
E. CellCLI LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server
F. 'crsct1 stop cluster -all' on one of the database servers

Answer: A,D

Explanation:
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmmn/maintaining-exadata-storage-servers.html#GUID-AE16A1DA-53C6-4E80-94E5-963AA65373AB The two commands that must be executed to safely power off the storage server in an Exadata X9M Database Machine are E and F.
Command E, CellCLI alter GRIDDISK all inactive, will deactivate all of the GRIDDISKS on the affected storage server. This will ensure that no data is lost during the power-off process.
Command F, shutdown -h now, will shut down the storage server. This will ensure that the storage server is completely powered off and no data is lost.
For more information on how to properly power off an Exadata Storage Server, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].

NEW QUESTION # 45
You have been asked by Oracle Support to check the firmware of the hard & flash disks in a storage server. Which cellcli command should you use to get this information?

A. list devices attributes name, deviceName, diskType, physicalFirmware
B. list physicaldisk attributes name, deviceName, diskType, physicalFirmware
C. list celldisk attributes name, deviceName, diskType, physicalFirmware
D. list cell attributes name, deviceName, diskType, physicalFirmware

Answer: B

Explanation:
This command will display the name, deviceName, diskType and physicalFirmware attributes of the physicaldisks in a storage server, as explained in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 85).

NEW QUESTION # 46
You have configured a multirack Database Machine with two X9M-8 full racks all in a single cluster and storage grid comprising a total of 4 X9M-8 Database servers and 28 X9M-8 Storage servers.
Which two options are true regarding the servers on which Enterprise Manager agents must be deployed in order to monitor all components of this multirack configuration?

A. on all database servers and at least two storage servers in both racks
B. on all database servers in the second rack
C. on only one database server in both racks
D. on all database servers in both racks and one storage server in each rack
E. on at least two storage servers in both racks
F. on all storage servers in both racks
G. on all database servers in the first rack

Answer: F,G

NEW QUESTION # 47
Which are two correct statements about backing up Exadata Database Machine?

A. Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.
B. The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually.
C. Backing up Exadata Storage Server Software is critical for restoration.
D. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.
E. For high availability, system area can be on the first two disks and M.2 devices.

Answer: A,C

Explanation:
[1] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 4: Oracle Clusterware [2] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 8: Oracle Exadata Storage Server Software [3] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 9: Oracle Exadata Storage Server Infrastructure
https://www.oracle.com/technetwork/database/availability/exadata-backup-recovery-bp-3633870.pdf

NEW QUESTION # 48
Which three statements are true about Oracle Configuration Manager (OCM) for an Exadata Database Machine?

A. It is mandatory to install OCM on at least one database server.
B. It collects configuration information automatically.
C. It collects configuration information on demand.
D. Collected configuration information can be uploaded automatically to Oracle.
E. It is mandatory to install OCM on all database servers.
F. Collected configuration information can be uploaded manually to Oracle.

Answer: A,E,F

Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources, OCM is mandatory to install on at least one database server and can be used to collect configuration information on demand. The collected information can then be uploaded either manually or automatically to Oracle.

NEW QUESTION # 49
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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q44-Q49):

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