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Oracle 1Z0-902 Exam

Certification Provider: Oracle
Exam Name: Oracle Exadata Database Machine X9M Implementation Essentials
Number of questions in our database: 60
Exam Version: May. 21, 2023
1Z0-902 Exam Official Topics:
  • Topic 1: Describe the deployment options of Exadata including Virtualization and Bare Metal/ Add additional storage to Exadata Database Servers
  • Topic 2: Use Exadata Software to troubleshoot client network disconnect/ Exadata Database Machine Architecture and Key Capabilities
  • Topic 3: Describe the network integration options of Exadata Database Machine/ Use Enterprise Manager to discover Exadata Database Machine
  • Topic 4: Describe how software is maintained on different Database Machine components/ Describe Exadata software architecture and deployment scenarios
  • Topic 5: Install and configure Oracle Exadata using Oracle Exadata Deployment Assistant/ Use Cloud Control or DBMCLI to monitor Exadata Database Machine Database Servers
  • Topic 6: Describe Oracle Configuration Manager (OCM) and how it relates to Exadata Database Machine/ Explain the impact of various diskgroup failure group choices
  • Topic 7: Use Exadata Software to deploy an update to an Exadata Database Machine without downtime/ Configure Exadata Database virtual deployment using Oracle Exadata Deployment Assistant
  • Topic 8: Describe the monitoring recommendations for Exadata Database Machine database servers/ Back up the Exadata Database Machine and databases on Exadata
  • Topic 9: Use the CellCLI, ExaCLI, DCLI and ExaDCLI Exadata administration tools in various situations/ Reconfigure the Exadata Database Machine to use a single power cable
  • Topic 10: Describe the Auto Service Request (ASR) function and how it relates to Exadata Database Machine/ Set up Automatic Service Request (ASR) on the Exadata Database Machine
  • Topic 11: Monitor Exadata Storage Server and Network using Command line or Cloud control/ Connect Exadata Database Server in various scenarios, including client and backup networks
  • Topic 12: Safely shut down a single Exadata Storage Server/ Describe the function of Oracle Exadata Configuration Assistant and Oracle Exadata Deployment Assistant
  • Topic 13: Add additional database server to a physical Exadata Database Machine using Oracle Exadata Deployment Assistant/ Create and configure Automatic Storage Management disk groups using Exadata
  • Topic 14: Describe physical site requirements and safety best practices for implementing Exadata/ Describe Exadata Remote Direct Memory Access (RDMA) and Client network architecture

Free Oracle 1Z0-902 Exam Actual Questions

The questions for 1Z0-902 were last updated On May. 21, 2023

Question #1

Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?

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Correct Answer: A, C

1. ZFS Storage Appliance (ZFSSA) can't connect directly to the Exadata 100Gb RoCE network switches. ZFSSA uses Fibre Channel protocol to connect to the Exadata storage cells. C. When backing up multi-rack systems, sharing Exadata X9M switches is not recommended. Each rack should have its own switches to minimize the risk of data loss due to switch failure.

Review the safety guidelines.

Unpack Oracle Exadata Rack.

Let the Exadata acclimatize for 24 hours.

Place Exadata in its allocated space.

Stabilize the Exadata Rack.

Power on Exadata PDU A.

Power on Exadata PDU B.

This order ensures that the necessary safety precautions are taken before installing the Exadata Database Machine, and that the machine is allowed to acclimate to its new environment before being powered on.


Question #2

You are working on a remote Exadata Database Machine with current software and firmware. You now need to start a storage server after hardware maintenance.

Which ILOM command starts the storage server?

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Correct Answer: C

This command is based on the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and other resources. This command sets the power state of the system to ON and starts the storage server. It is the only command that is able to start the storage server remotely. All the other commands are incorrect or require the user to be physically present in the data center.


Question #3

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

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Correct Answer: A, C

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


Question #4

You have been asked to investigate why an Exadata Database Server stopped communicating on the client network for 10 minutes over the past weekend.

Which command would help investigate this?

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Correct Answer: D

Exachk is an Oracle-provided diagnostic tool that allows you to check various components of an Exadata Database Server, including the client network. The tool is located in the /opt/oracle.SupportTools/exachk/ directory and can be run with the command: exachk. This command can be run with the option ---from <Fridays_Date>_17:00:00 and ---to <Sundays_Date>_23:59:00 to specify a time range of interest, this way you can check the client network status between the specified time range. The tool checks the status of various components such as network interfaces, InfiniBand fabric, and storage servers. It also analyzes log files, configuration files, and system settings to detect any issues. The tool generates a report, which can be used to identify the root cause of the issue and provide recommendations for resolution.

Tfact1 is a tool to collect diagnostic information from Exadata and non-Exadata systems and it is not related to client network status.

Netcheck and GetExaWatcherResults.sh are not tools provided with the Exadata Database Server and they are not related to client network status.


Question #5

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?

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Correct Answer: A, C, E

1. The Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 6-25) recommends using the Exadata-specific Enterprise Manager Plug-Ins to monitor ASM instances.

2. Additionally, the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 6-25) recommends using the Exadata-specific Enterprise Manager Plug-Ins to monitor the storage server ILOM.

3. The Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 6-25) also recommends using the Exadata-specific Enterprise Manager Plug-Ins to monitor Oracle clusterware on the database server.



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