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Oracle Exadata Database Machine X8M system is a high-performance database machine that is designed to deliver extreme performance for data-intensive workloads. It combines hardware and software technologies to provide fast and efficient processing of large volumes of data. The Oracle 1z1-902 Exam covers a range of topics related to this system, including installation and configuration, administration, backup and recovery, and performance tuning.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q64-Q69):

NEW QUESTION # 64
You must drop all celldisks on all the storage servers in an X9M-2 quarter rack as part of a reconfiguration project.
Which three statements describe the account on the storage servers which you should use and the tool that may be used to drop the celldisks?

A. to the CELLMONITOR account using cellcli interactively on each storage server
B. to an administrator-created storage server user with appropriate privileges on celldisk objects by calling EXACLI on all cells using exadcli
C. to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli
D. to the CELLMONITOR account calling CELLCLI on all cells using DCLI
E. to the CELLADMIN account by calling CELLCLI on all cells using DCLI
F. to the CELLADMIN account using cellcli interactively on each storage server

Answer: A,C,D

NEW QUESTION # 65
Which are two correct statements about backing up Exadata Database Machine?

A. 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.
B. For high availability, system area can be on the first two disks and M.2 devices.
C. Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.
D. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.
E. Backing up Exadata Storage Server Software is critical for restoration.

Answer: C,E

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 # 66
Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?

A. ZFSSA may connect directly to the Exadata 100Gb RoCE network switches.
B. ZFS Snapshots can provide rapid cloning of development and test environment.
C. Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.
D. When backing up multi-rack systems, sharing Exadata X9M switches is recommended.

Answer: A,C

NEW QUESTION # 67
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 LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server
C. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
D. 'crsct1 stop cluster -all' on one of the database servers
E. shutdown -h now' on the affected storage server
F. CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server

Answer: A,E

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 # 68
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?

A. fans in the storage servers
B. RoCE network interface cards in the database servers
C. Cisco management switch
D. RoCE network interface cards in the storage servers
E. Cisco RDMA over Converged Ethernet (RoCE) switches
F. power distribution units
G. power supplies in the database servers

Answer: D,E,F,G

Explanation:
According to the Oracle Auto Service Request (ASR) documentation1, ASR raises service requests for qualified Oracle products that are detected with specific faults. The qualified Exadata products include2:
Database servers
Storage servers
InfiniBand switches
Cisco switches (X8M and later systems)
Power distribution units (PDUs)

NEW QUESTION # 69
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