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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q80-Q85):

NEW QUESTION # 80
Which two options can be used to identify a damaged or failing flash card on an X9M-2 Database Machine High Capacity storage server?

A. hardware monitoring using the storage server ILOM
B. using the CELLCLI list LUN DETAIL command as the celladmin user
C. using the CELLCLI CALIBRATE command on the storage server after logging in as the root user
D. using the CELLCLI CALIBRATE command on the storage server after logging in as the celladmin user

Answer: A,D

Explanation:
The CELLCLI CALIBRATE command can be used to check the health of all flash cards in the storage server, and it should be run after logging in as the celladmin user. The hardware monitoring using the storage server ILOM should also be used to check for errors and other potential issues with the flash cards. The CELLCLI list LUN DETAIL command should not be used to identify a damaged or failing flash card, since it will not provide any information about the health of the flash card.
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmmn/index.html

NEW QUESTION # 81
Which statement is true about the patching features provided in Platinum Services?

A. Oracle Platinum Service covers Exadata storage software and firmware patching, but customers must perform the database patching.
B. Patching is done automatically during business hours.
C. The rolling and complete down time approaches are two options to patching.
D. Patching services are available for the full software stack up to twice per year.

Answer: D

Explanation:
Oracle Platinum Services provides patching features for the full software stack, which includes operating systems, virtualization, storage software and firmware, and databases. This service is typically performed up to twice per year, allowing customers to schedule the patching at their convenience. The patching is usually done to keep the software and firmware up-to-date and to fix any known security vulnerabilities. It's important to note that patching services are not done automatically during business hours, customer's involvement and schedule is needed, and the rolling and complete downtime approaches are options to minimize the impact on the system during patching.

NEW QUESTION # 82
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. Extended Redundancy mirrors data across data centers providing the highest levels of data protection.
D. They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.

Answer: B

Explanation:
According to Oracle's documentation12, ASM failure groups provide redundancy by storing mirror copies of data on different disks or storage servers. When ASM allocates an extent for a normal redundancy file, ASM allocates a primary copy and a secondary copy. ASM chooses the disk on which to store the secondary copy so that it is in a different failure group than the primary copy1. This way, if one disk or storage server fails, ASM can still access the data from another failure group2.
Therefore, the statement that is true about how ASM failure groups provide redundancy is:
Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.

NEW QUESTION # 83
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. # xfs_growfs /uOl +20G
B. # lvextend -L +20G -verbose /dev/VGExaDb/LVDbOral
C. # lvextend -L +20G -verbose /dev/mapper/VGExaDb-LVDbOral
D. # resize2fs +20G /dev/VGExaDb/LVDbOral

Answer: C

NEW QUESTION # 84
Which are two correct statements about backing up Exadata Database Machine?

A. For high availability, system area can be on the first two disks and M.2 devices.
B. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.
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. Backing up Exadata Storage Server Software is critical for restoration.
E. 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.

Answer: C,E

NEW QUESTION # 85
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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q80-Q85):

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