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New Oracle Exadata 1z0-902 Exam Practice Questions

Total 60 Questions

Last Updated On: 16-Jan-2025

Question # 1

What is the maximum DRAM capacity you can expand an X9M-2 DB Server?
A. 1536GB
B. 512GB
C. 2048GB
D. 768GB
E. 1024GB

2048GB

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).

Question # 2

Which two statements are true about applying updates on Exadata systems?
A. Failed storage server updates are automatically rolled back to a previous release.
B. To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.
C. Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum —exclude option.
D. For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.
E. Failed database server updates are rolled back to a working state on a previous release automatically.

For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.

Failed database server updates are rolled back to a working state on a previous release automatically.

Question # 3

Which two statements are true about the initial storage configuration after the standard (non-virtualized) deployment of a new Exadata Database Machine with High Capacity storage servers?
A. The sparse_<DBM_NAME> diskgroup is created automatically.
B. There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.
C. The DATA_<DBM_Name> and RECO_<DBM_NAME> ASM diskgroups are built on with DATA on the outer-most tracks and RECO on the inner-most tracks of the physical disk.
D. There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes.
E. There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.

There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.

There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.

Question # 4

You must drop all celldisks on all the storage servers in an X9M-2 quarter rack as part of a reconfiguration project. Which three statements describe the account on the storage servers which you should use and the tool that may be used to drop the celldisks?
A. to the CELLADMIN account by calling CELLCLI on all cells using DCLI
B. to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli
C. to the CELLMONITOR account using cellcli interactively on each storage server
D. to an administrator-created storage server user with appropriate privileges on celldisk objects by calling EXACLI on all cells using exadcli
E. to the CELLMONITOR account calling CELLCLI on all cells using DCLI

to an administrator-created storage server user with appropriate privileges on celldisk objects by calling CELLCLI on all cells using exadcli

to the CELLMONITOR account using cellcli interactively on each storage server

to the CELLMONITOR account calling CELLCLI on all cells using DCLI

Question # 5

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$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
C. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.
D. 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.

YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.

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'.

Question # 6

Which two statements are true about Auto Service Request (ASR) with an Exadata Database Machine?
A. ASR Manager must be installed and configured on a dedicated server external to the Database Machine.
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 can upload configuration metadata to support problem resolution.
E. ASR Manager opens a service request (SR) automatically after sensors detect hardware faults.

ASR Manager must be installed and configured on a dedicated server external to the Database Machine.

ASR Manager must be installed and configured on one of the database servers.

Question # 7

Which two statements are true about enabling write-back flash cache?
A. Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.
B. Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.
C. When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.
D. Before write-back flash cache is enabled, you need to drop the Flash Cache first.
E. When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.

Before write-back flash cache is enabled, you need to drop the Flash Cache first.

When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.

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