Quiz 2025 High Pass-Rate Oracle 1Z0-902: Oracle Exadata Database Machine X8M Implementation Essentials Exam Topics Pdf

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Oracle 1z1-902 certification exam is a rigorous and comprehensive test of the candidate's ability to manage and implement the Oracle Exadata Database Machine X8M. Oracle Exadata Database Machine X8M Implementation Essentials certification is highly valued in the industry and is a must-have credential for professionals who want to demonstrate their expertise in managing complex database systems. With the right preparation and experience, candidates can pass the exam and earn this valuable certification.

Oracle Exadata Database Machine X8M is a powerful database appliance that provides high performance, scalability, and reliability for mission-critical applications. It is designed to consolidate multiple databases and applications into a single machine, making it easier to manage and maintain. The machine is equipped with state-of-the-art hardware and software components, including flash storage, InfiniBand networking, and Oracle Database software.

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Oracle 1Z0-902 certification exam, also known as the Oracle Exadata Database Machine X8M Implementation Essentials, is designed for professionals who specialize in implementing and administering Oracle Exadata Database Machine X8M systems. Oracle Exadata Database Machine X8M Implementation Essentials certification validates your skills and knowledge of Exadata architecture, configuration, and management, as well as your ability to troubleshoot and resolve common issues. 1Z0-902 Exam is ideal for database administrators, system administrators, and technical consultants who want to enhance their expertise in Oracle Exadata.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q20-Q25):

NEW QUESTION # 20
You want to monitor how a large production table is accessed. Especially, you are interested to see how the access on that particular table leverages the benefits of the Exadata Platform.
Which two actions are NOT appropriate for that purpose?

A. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.
B. You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
C. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
D. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.

Answer: A,D

Explanation:
1. Querying VSSYSTEM_EVENTS for the event 'cell physical IO interconnect bytes returned by smart scan' will not be appropriate for monitoring the access on a particular table. The V$SYSTEM_EVENT view is used to monitor system-wide performance statistics, not specific table access. C. Querying v$SYSTAT for the statistic 'cell smart table scan' will not be appropriate for monitoring the access on a particular table as well. The v$SYSTAT view contains system-wide performance statistics, not specific table access.

NEW QUESTION # 21
You plan to monitor the status of the motherboard, memory, power, fans, and network cards on the database nodes in your Exadata Database Machine using Enterprise Manager.
Where must you set the thresholds for these hardware components and why, to assure that sensor readings, faults, and any related alerts, are visible in Enterprise Manager?

A. No thresholds need to be set because they are preset in the ILOM and these are sufficient for monitoring.
B. Set thresholds in ILOM and in Enterprise Manager because they are not preset anywhere and must be set in both places.
C. Set thresholds only in ILOM because they are not preset anywhere but need to be set only in ILOM.
D. No thresholds need to be set because they are preset in the ILOM and in Enterprise Manager

Answer: D

Explanation:
For Exadata systems, hardware monitoring for components like the motherboard, memory, power, fans, and network cards on the database nodes is managed through the Integrated Lights Out Manager (ILOM). The ILOM provides built-in thresholds and sensor readings that are automatically recognized by Oracle Enterprise Manager.
These thresholds and alerts are already configured within ILOM for Exadata components, ensuring seamless integration with Enterprise Manager for alerting and monitoring purposes.
Enterprise Manager uses these pre-set ILOM thresholds and does not require additional configuration for monitoring hardware components. Therefore, administrators benefit from preset alerting mechanisms that are sufficient for comprehensive hardware status visibility.

NEW QUESTION # 22
Which two statements are true about applying updates on Exadata systems?

A. When running a "yum update" for a new Exadata release, all other repositories should be disabled.
B. For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.
C. Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum -exclude option.
D. Failed database server updates are rolled back to a working state on a previous release automatically.
E. To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.
F. Failed storage server updates are automatically rolled back to a previous release.

Answer: D,F

Explanation:
When applying updates on Exadata systems, database server updates are automatically rolled back to a working state on a previous release if the update fails. This ensures that the system can be restored to a working state in the event of a failed update. Additionally, storage server updates are also automatically rolled back to a previous release in the event of a failed update.
This is documented in the Oracle Exadata Database Machine X9M Implementation Essentials official text book and more information can be found on the Oracle support website [1][2].

NEW QUESTION # 23
Your customer would like to configure monitoring capabilities Auto Service Request (ASR) on the stand-alone server that was set aside to run ASR Manager.
What configuration should you set up for the customer?

A. ASR Manager with SNMP traps configured to listen for specific alerts triggered by Exadata Intergrated Lights Out Manager (ILOM).
B. Enterprise Manager and ASR Manager on the stand-alone server because ASR is not a monitoring tool.
C. ASR Manager inside the firewall along with ExaWatcher to monitor Database and Storage Server performance.
D. Enterprise Manager, Exachk and ASR Manager on the stand-alone server because ASR needs Exachk for continuous Hardware monitoring.

Answer: A

Explanation:
For setting up Auto Service Request (ASR) monitoring on a standalone server dedicated to ASR Manager:
ASR Manager with SNMP Traps: Configuring ASR Manager to utilize SNMP traps allows it to automatically receive alerts from the Integrated Lights Out Manager (ILOM) on Exadata components. The SNMP traps notify ASR Manager of specific hardware faults or critical system events, which then automatically generate service requests with Oracle Support.
This setup ensures proactive monitoring and allows rapid response to any critical alerts related to the Exadata hardware, leveraging the ILOM's ability to monitor key system health metrics and trigger alerts as necessary.

NEW QUESTION # 24
Which three statements are true about the CELLCLI command?

A. It can be executed on storage servers.
B. It has command-line history.
C. It can execute commands on multiple storage servers in parallel.
D. It can be executed using the DCLI utility.
E. It requires root privileges to create CELLDISKS and GRIDDISKS.

Answer: B,C,D

Explanation:
The CELLCLI utility is a command line interface to Exadata that enables the execution of commands across multiple storage servers in parallel. It also has command-line history, so users can easily recall previously entered commands. Furthermore, the CELLCLI utility can be executed using the DCLI utility, which provides a convenient way to execute commands on multiple storage servers simultaneously.
However, CELLCLI does not require root privileges to create CELLDISKS and GRIDDISKS, and it cannot be executed on storage servers. This is because CELLCLI is used to manage the Exadata database machine from the database server [1]. For more information about CELLCLI, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].

NEW QUESTION # 25
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