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NEW QUESTION # 46
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. # resize2fs +20G /dev/VGExaDb/LVDbOral
B. # lvextend -L +20G -verbose /dev/VGExaDb/LVDbOral
C. # xfs_growfs /uOl +20G
D. # lvextend -L +20G -verbose /dev/mapper/VGExaDb-LVDbOral

Answer: D

Explanation:
After running the commands above, the filesystem mounted on /u01 is on the logical volume /dev/mapper/VGExaDb-LVDbOral. So, to add 20G of space to the filesystem mounted on /u01, the command that needs to be run is:
lvextend -L +20G --verbose /dev/mapper/VGExaDb-LVDbOral
This command will extend the logical volume /dev/mapper/VGExaDb-LVDbOral by 20 GB of space. It is important to note that the option --verbose is used to display the progress of the operation.

NEW QUESTION # 47
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. When backing up multi-rack systems, sharing Exadata X9M switches is recommended.
D. Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.

Answer: A,C

Explanation:
1. ZFS Storage Appliance (ZFSSA) can't connect directly to the Exadata 100Gb RoCE network switches. ZFSSA uses Fibre Channel protocol to connect to the Exadata storage cells. C. When backing up multi-rack systems, sharing Exadata X9M switches is not recommended. Each rack should have its own switches to minimize the risk of data loss due to switch failure.
Review the safety guidelines.
Unpack Oracle Exadata Rack.
Let the Exadata acclimatize for 24 hours.
Place Exadata in its allocated space.
Stabilize the Exadata Rack.
Power on Exadata PDU A.
Power on Exadata PDU B.
This order ensures that the necessary safety precautions are taken before installing the Exadata Database Machine, and that the machine is allowed to acclimate to its new environment before being powered on.

NEW QUESTION # 48
What are two recommended configuration best practices for backup and recovery on Exadata?

A. When off-site long-term backup retention is needed, use Oracle Database Backup Cloud Service as a low-cost, offsite scalable storage for a disaster recovery solution.
B. The internal Recovery Appliance backup and restore processing is optimized when the RMAN FILESPERSET parameter is set to 1 for the level 1 incremental backup set.
C. Even if the backup was limited to writing to four tape drives, eight channels could be specified to expedite the restore process.
D. Placing the backup network on dedicated switches installed in the top of the rack (ToR) has the benefits of isolating the backup network from other workloads and providing a greater level of control.

Answer: A,D

NEW QUESTION # 49
Which three statements are true about Oracle Configuration Manager (OCM) for an Exadata Database Machine?