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Oracle 1Z0-902 (Oracle Exadata Database Machine X8M Implementation Essentials) Certification Exam is an essential credential for professionals who are involved in the implementation and management of Oracle Exadata Database Machine X8M. 1Z0-902 exam tests the skills and knowledge of candidates in a wide range of topics related to the machine, and passing the exam can lead to career advancement opportunities and increased earning potential.

Oracle Exadata is a high-performance engineered system that is designed for running the Oracle Database. It provides a unique combination of hardware and software, which is optimized for Oracle Database workloads. Oracle Exadata Database Machine X8M is the latest version of this engineered system, which offers enhanced performance, scalability, and reliability. To implement Exadata X8M, Oracle offers the 1Z0-902 Exam, which validates the candidate's knowledge and skills in Exadata X8M implementation.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q75-Q80):

NEW QUESTION # 75
What is the minimum Exadata System Software version required for Exadata X9M?

A. 19.2.1 0.0
B. 21.2.0.0.0
C. 19.3.0.0.0
D. 20.1.1.0.0
E. 21.3.0.0.0
F. 18.1.3.0.0

Answer: B

Explanation:
The minimum Exadata System Software version required to support Oracle Exadata X9M is 21.2.0.0.0. This version introduced various enhancements and capabilities tailored for the X9M series, including optimizations for the RoCE network fabric and support for new hardware components .

NEW QUESTION # 76
A new Exadata Quarter Rack with 2 Database Servers and 3 HC Storage Servers and 3-phase 15kVA PDUs is being installed in a Data Center. However, the Data Center is only providing enough power for a single cable from each PDU.
Which statement is correct?

A. The installation cannot proceed until two power feeds are available per PDU.
B. The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.
C. A splitter cable can be used to provide power to all PDU cables.
D. The installation can go ahead, no change is required.

Answer: A

Explanation:
An Exadata Quarter Rack with 2 Database Servers and 3 HC Storage Servers and 3-phase 15kVA PDUs would typically require two power feeds per PDU, one for each of the two power distribution units (PDUs) in the rack. A single power feed per PDU is not sufficient to provide the necessary power to the servers and storage in the rack.
The installation cannot proceed until two power feeds are available per PDU. According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], it is recommended that each PDU should have at least two power feeds from different power sources in the data center. This is to ensure redundancy and avoid any power interruption due to power failure on one of the power sources. Splitter cables are not recommended, as they can reduce efficiency and increase the risk of overheating. Rearranging the power cables within the rack is not recommended either, as it does not provide the necessary redundancy for the PDU.

NEW QUESTION # 77
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. 'crsct1 stop cluster -all' on one of the database servers
B. CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server
C. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
D. CellCLI LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server
E. shutdown -h now' on the affected storage server
F. CellCLI alter GRIDDISK all inactive on the affected storage server

Answer: E,F

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].
https://support.oracle.com/knowledge/Oracle%20Database%20Products/1188080_1.html

NEW QUESTION # 78
An Exadata X9M-2 Elastic Rack with 4 Database Servers and 8 HC Storage Servers and 3-phase 24kVA PDUs is being installed in a Data Center. However, the Data Center is only providing enough power for a single cable from each PDU. Which statement is correct?

A. The installation cannot proceed until two power feeds are available per PDU.
B. The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.
C. A splitter cable can be used to provide power to all PDU cables.
D. The installation can go ahead, no change is required.

Answer: A

Explanation:
In order for an Exadata X9M-2 Elastic Rack to be installed, two power feeds are required for each of the three-phase 24kVA PDUs. A single cable from each PDU will not be enough to power the rack, and neither a splitter cable nor rearrangement of the power cables from the servers to the PDUs will be able to provide sufficient power for the system. Therefore, the installation cannot proceed until two power feeds are available per PDU.
For more information about power requirements for Exadata X9M-2 Elastic Racks, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources.
Search results: [1] Oracle Exadata Database Machine X9M-2 Full Rack Installation - Oracle Docs [2] Exadata Database Machine X8M-2 Mid-Size Rack Installation - Oracle Docs

NEW QUESTION # 79
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 the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.
B. Copy and execute the script on all storage servers using the dcli command.
C. Copy and execute the script 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 all storage servers using the EXACLI command.

Answer: D

Explanation:
This can be done by using the 'cellcli -e' command, which allows you to execute commands in parallel on all storage servers. For more information about executing CELLCLI commands in parallel, please refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].

NEW QUESTION # 80
......

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