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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q15-Q20):

NEW QUESTION # 15
You have a script with several CELLCLI commands that must be executed on each cell in your Exadata full rack. The script must run on each cell simultaneously. How must you achieve this?

A. Copy and execute the script on all storage servers using the EXACLI command.
B. Copy and execute the script on all storage servers using the dcli command.
C. Copy the script to all storage servers using the dcli command and manually execute it on all storage servers using the EXACLI command.
D. Copy the script to all storage servers using the CELLCLI command and execute it on all storage servers in parallel using the CELLCLI command.
E. Copy the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.

Answer: B

NEW QUESTION # 16
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. Using EXADCLI instead of CELLCLI to create the griddisks
B. File permissions on the griddisks in each storage server
C. Exadata storage realms using ASM-scoped security mode
D. File permissions on the griddisks in each database server
E. Exadata storage realms using database-scoped security mode

Answer: B,C

Explanation:
When multiple databases share space on the storage servers in an unpartitioned storage grid, two Exadata security features can be configured to control which databases can access which griddisks.
Exadata storage realms using ASM-scoped security mode: This feature allows you to create storage realms and assign them to specific databases. This allows you to control which databases have access to which griddisks. The ASM-scoped security mode applies to all griddisks within an ASM disk group, which means that all griddisks in a disk group will be accessible only to the databases that belong to the assigned storage realm.
File permissions on the griddisks in each storage server: This feature allows you to configure file permissions on the griddisks at the storage server level. You can assign specific permissions to specific users or groups, allowing you to control which databases can access which griddisks.

NEW QUESTION # 17
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

A. For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.
B. Run the appropriate patchmgr preqequisite check step for each component being updated.
C. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release.
D. Run exachk and resolve only WARNINGS that you have not seen before.
E. Run patchmgr --all_comp -autofix -autobackup -upgrade -rolling.
F. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk.

Answer: A,B,C,E

NEW QUESTION # 18
You are planning the monitoring configuration for your Exadata X9M Database Machine.
Which three components are monitored directly through the use of Exadata-specific Enterprise Manager Plug-Ins?

A. Hybrid Columnar Compression (HCC) ratios on Extended (XT) storage servers
B. Oracle clusterware on the database server
C. the storage server ILOM
D. the Power Distribution Units (PDUs)
E. ASM instances
F. the RDMA over Converged Ethernet (RoCE) switches

Answer: B,C,E

NEW QUESTION # 19
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

A. Run patchmgr --all_comp -autofix -autobackup -upgrade -rolling.
B. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk.
C. Run the appropriate patchmgr preqequisite check step for each component being updated.
D. Run exachk and resolve only WARNINGS that you have not seen before.
E. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release.
F. For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.

Answer: B,C,D,E

Explanation:
According to Oracle.com documents or resources, the four actions that you should take before proceeding with applying updates to your Exadata Database Machine are:
1. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release123.
2. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk453.
3. Run exachk and resolve only WARNINGS that you have not seen before3.
4. Run the appropriate patchmgr preqequisite check step for each component being updated3.

NEW QUESTION # 20
......

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