1z0-902 Oracle Exadata Database Machine X9M Implementation Essentials exact Exam Questions

Oracle Exadata Database Machine X9M Implementation Essentials

Last Update 5 hours ago Total Questions : 85

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Question # 21

Which two Exadata security features would you configure to control which databases can access which griddisks, when multiple databases share space on your storage servers in an unpartitioned storage grid?

Exadata storage realms using ASM-scoped security mode

File permissions on the griddisks in each database server

Using EXADCLI instead of CELLCLI to create the griddisks

File permissions on the griddisks in each storage server

Exadata storage realms using database-scoped security mode

Question # 22

Which of the below is NOT a precaution that should be adhered to in order to ensure the site is safe and ready for

Do not use a flathead screwdriver to disconnect connector locks on LAN cables.

Be sure that each grounding wire used for Oracle Exadata Rack is used exclusively for Oracle Exadata Rack.

Do not install Oracle Exadata Rack near a photocopy machine.

Do not place anything on top of Oracle Exadata Rack.

When using shared grounding, the grounding resistance must not be greater than 10 ohms.

Do not install Oracle Exadata Rack in a location that is exposed to direct sunlight.

Question # 23

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?

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 ' .

You query v$SYSTAT and filter for the statistic ' cell smart table scan ' , associated to your table.

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.

Question # 24

How many 128GB Persistent Memory DIMMS are included in Exadata X9M-2 Extended (XT) Storage Servers?

Question # 25

Which are two correct statements about backing up Exadata Database Machine?

Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.

Backing up Exadata Storage Server Software is critical for restoration.

For high availability, system area can be on the first two disks and M.2 devices.

The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually.

Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.