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Oracle 1Z0-902 exam consists of 60 questions that are multiple-choice and multiple-answer. 1z1-902 Exam Duration is 105 minutes, and the passing score is 63%. 1z1-902 exam covers topics such as Exadata Database Machine architecture, installation, configuration, backup and recovery, storage management, and monitoring and tuning. 1z1-902 exam also tests the candidate's knowledge of Oracle Database features and technologies that are specific to Exadata Database Machine.

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.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q85-Q90):

NEW QUESTION # 85
Which two options can be used to identify a damaged or failing flash card on an X9M-2 Database Machine High Capacity storage server?

A. using the CELLCLI CALIBRATE command on the storage server after logging in as the celladmin user
B. using the CELLCLI CALIBRATE command on the storage server after logging in as the root user
C. hardware monitoring using the storage server ILOM
D. using the CELLCLI list LUN DETAIL command as the celladmin user

Answer: A,C

Explanation:
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.

NEW QUESTION # 86
An Exadata storage server physical disk on an X9M-2 high-capacity full rack entered the predictive failure state. Which two steps must you perform to replace this failed physical disk?

A. Identify the griddisks located on the failed physical disk and drop them from the associated ASM diskgroups.
B. Add the griddisks back into the ASM diskgroup they used to be a member of.
C. Replace the failed physical disk.
D. Verify that the griddisks located on the physical disk have been successfully dropped from the associated ASM diskgroups.
E. Rebalance the data on the effected griddisks before performing a manual drop command.
F. Create a new celldisk and new griddisks on the replaced physical disk.

Answer: C,E

NEW QUESTION # 87
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?

A. OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.
B. OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.
C. There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.
D. OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.

Answer: A,D

Explanation:
Oracle Exadata Deployment Assistant (OEDA) enables customers to deploy Oracle Exadata Database Machine in virtualized environments and it support both bare metal and virtual machine deployment in an Exadata X9M Quarter Rack.
OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack, and it sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA. According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], OEDA deployment steps include setup, configure, deploy, and manage. The number of VMs in an Exadata rack is limited by the available resources in the rack, such as CPU, Memory, and Storage.

NEW QUESTION # 88
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$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
B. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.
C. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
D. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.

Answer: A,B

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 # 89
Which two statements are true about Auto Service Request (ASR) with an Exadata Database Machine?

A. ASR can upload configuration metadata to support problem resolution.
B. Configuring ASR is mandatory for all Database Machine assets.
C. ASR Manager must be installed and configured on one of the database servers.
D. ASR Manager must be installed and configured on a dedicated server external to the Database Machine.
E. ASR Manager opens a service request (SR) automatically after sensors detect hardware faults.
F. ASR communicates with Oracle support services using HTTPS.

Answer: A,E

Explanation:
D) ASR can upload configuration metadata to support problem resolution1.
E) ASR Manager opens a service request (SR) automatically after sensors detect hardware faults1
https://docs.oracle.com/cd/E37710_01/doc.41/e23333/toc.htm

NEW QUESTION # 90
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