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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q76-Q81):

NEW QUESTION # 76
Which two statements are true in regards to starting the Exadata Virtual Machine?

A. Use vm_maker -auto-start command to configure a virtual machine to start automatically when the KVM host is started.
B. Use vm_maker boot-from-iso command to boot a virtual machine.
C. To streamline the diagnosis of virtual machines, one ISO file is used for multiple Oracle Exadata System Software releases.
D. To see Oracle Linux boot messages during guest startup, use -console option with the vm_maker -start-domain command.
E. Use vm_maker -start-domain to start a virtual machine manually.

Answer: A,B

NEW QUESTION # 77
Which three component faults are covered by Oracle Auto Service Request (ASR)?

A. Proactive recommendations for firmware
B. Fan trays
C. System Controller (SC)
D. RoCE network interface cards
E. File system unmounted
F. I/O boards

Answer: B,C,F

Explanation:
Oracle ASR covers a range of hardware components on Exadata Database Machines to ensure rapid response and issue resolution. The covered hardware components include critical parts such as:
Fan Trays: These are essential for cooling Exadata components and are covered by ASR in case of failures.
System Controller (SC): Integral to the operation of Exadata storage servers, SC failures are reported by ASR to ensure the overall system's reliability and availability.
I/O Boards: ASR actively monitors and responds to failures in I/O boards, which are crucial for data processing and connectivity within Exadata storage servers.
The ASR system is optimized to handle hardware-related issues proactively, ensuring that critical components are continuously monitored and replaced as necessary.

NEW QUESTION # 78
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 database server
C. Exadata storage realms using database-scoped security mode
D. File permissions on the griddisks in each storage server
E. Exadata storage realms using ASM-scoped security mode

Answer: A,D

NEW QUESTION # 79
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

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

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 # 80
Which dbmcli command is NOT valid on Exadata X9M?

A. dbmcli -e "LIST METRICHISTORY WHERE name LIKE 'DS_.*'"
B. dbmcli -e "LIST METRICCURRENT WHERE name = 'DS_TEMP' "
C. dbmcli -e "LIST ALERTHISTORY WHERE agelnMinutes < 15"
D. dbmcli -e "LIST IBPORT DETAIL"

Answer: D

Explanation:
The dbmcli -e "LIST IBPORT DETAIL" command is not valid on Exadata X9M. According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], this command is only valid on Exadata X3 and X4 models. The other three commands are valid on Exadata X9M.
https://forums.oracle.com/ords/apexds/map/tech/apps-infra/discussion/4342715/monitoring-roce-performance

NEW QUESTION # 81
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