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Certification Topics of Oracle 1Z0-902 Exam

• Exadata Database Machine Architecture and Key Capabilities
• Exadata Database Machine Security
• Exadata Database Machine Site and Implementation Planning (OECA&OEDA)
• Exadata Database Machine Monitoring
• Exadata Database Machine Troubleshooting
• Exadata Database Machine Configuration and Administration
• Exadata Database Maintenance Tasks

Oracle 1z1-902 Exam Syllabus Topics:

Topic	Details
Topic 1	Use Exadata Software to troubleshoot client network disconnect Exadata Database Machine Architecture and Key Capabilities
Topic 2	Describe the monitoring recommendations for Exadata Database Machine database servers Back up the Exadata Database Machine and databases on Exadata
Topic 3	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 4	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 5	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 6	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 7	Install and configure Oracle Exadata using Oracle Exadata Deployment Assistant Use Cloud Control or DBMCLI to monitor Exadata Database Machine Database Servers
Topic 8	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 9	Describe the deployment options of Exadata including Virtualization and Bare Metal Add additional storage to Exadata Database Servers
Topic 10	Describe physical site requirements and safety best practices for implementing Exadata Describe Exadata Remote Direct Memory Access (RDMA) and Client network architecture
Topic 11	Describe the network integration options of Exadata Database Machine Use Enterprise Manager to discover Exadata Database Machine

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q36-Q41):

NEW QUESTION # 36
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 v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.
• B. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
• C. You query v$segmentstatistics and filter for the Object ID of your table from dbaobjects and the the column STATISTIC_NAME='optimized physical reads'.
• D. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.

Answer: C,D Explanation:
The two actions that are not appropriate for monitoring how a large production table is accessed in order to leverage the benefits of the Exadata Platform are A) querying VSSYSTEMEVENTS and filtering for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table; and B) querying v$segmentstatistics and filtering for the Object ID of your table from dbaobjects and the the column STATISTICNAME='optimized physical reads'. Instead, you should query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table (C), or 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). These two methods are outlined in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (Chapter 8, Monitoring the Exadata Database Machine).
NEW QUESTION # 37
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?

• A. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
• B. alert logs for the prod database instances
• C. alert logs for Enterprise Manager
• D. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances
• E. alert logs for the ASM instances

Answer: B,E Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources, you can find diagnostic messages related to this problem in the alert logs for the ASM instances and the alert logs for the prod database instances. The alert logs for the ASM instances will provide information related to the offline asm disks, while the alert logs for the prod database instances will provide information related to whether the prod database instances are connected to the ASM instance or not.
NEW QUESTION # 38
What is the maximum DRAM capacity you can expand an X9M-2 DB Server?

• A. 1024GB
• B. 2048GB
• C. 768GB
• D. 512GB
• E. 1536GB
• F. 384GB

Answer: B Explanation:
The Exadata X9M-2 Database Machine uses powerful database servers, each with two 32-core x86 processors and 512 GB of memory (expandable up to 2 TB).
NEW QUESTION # 39
You have configured a multirack Database Machine with two X9M-8 full racks all in a single cluster and storage grid comprising a total of 4 X9M-8 Database servers and 28 X9M-8 Storage servers.
Which two options are true regarding the servers on which Enterprise Manager agents must be deployed in order to monitor all components of this multirack configuration?

• A. on all database servers in the second rack
• B. on at least two storage servers in both racks
• C. on all database servers in both racks and one storage server in each rack
• D. on all database servers in the first rack
• E. on only one database server in both racks
• F. on all database servers and at least two storage servers in both racks
• G. on all storage servers in both racks

Answer: B,F Explanation:
In order to monitor all components of this multirack configuration, Enterprise Manager agents must be deployed on at least two storage servers in both racks and all database servers in both racks. This is according to the Oracle Exadata Database Machine X9M Implementation Essentials official text book [1], in which it states "To monitor all components of the multirack configuration, you must deploy agents on all database servers and at least two storage servers in each rack" (page 6-15).
NEW QUESTION # 40
Which three statements are true about Oracle Configuration Manager (OCM) for an Exadata Database Machine?

• A. It is mandatory to install OCM on all database servers.
• B. It collects configuration information on demand.
• C. Collected configuration information can be uploaded automatically to Oracle.
• D. Collected configuration information can be uploaded manually to Oracle.
• E. It is mandatory to install OCM on at least one database server.
• F. It collects configuration information automatically.

Answer: D,E,F
NEW QUESTION # 41
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