PASS GUARANTEED QUIZ 2025 1Z1-902: ORACLE EXADATA DATABASE MACHINE X8M IMPLEMENTATION ESSENTIALS NEWEST FREE UPDATES

Pass Guaranteed Quiz 2025 1z1-902: Oracle Exadata Database Machine X8M Implementation Essentials Newest Free Updates

Pass Guaranteed Quiz 2025 1z1-902: Oracle Exadata Database Machine X8M Implementation Essentials Newest Free Updates

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Upon passing the Oracle 1Z0-902 exam, candidates will receive the Oracle Exadata Database Machine X8M Implementation Essentials certification. Oracle Exadata Database Machine X8M Implementation Essentials certification validates the candidate's knowledge and skills in implementing Exadata X8M and is recognized by employers worldwide. Oracle Exadata Database Machine X8M Implementation Essentials certification holders can also access Oracle's Exadata support resources and participate in Oracle user groups.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q42-Q47):

NEW QUESTION # 42
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 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.
  • B. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.
  • C. You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
  • D. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.

Answer: B,D

Explanation:
1. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table. This does not show how much data was filtered by Smart Scan, but only how much data was returned after Smart Scan12.
2. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table. This does not show how much data was filtered by Smart Scan for a specific table, but only for all tables in a session12.
https://www.databasejournal.com/oracle/monitoring-smart-scans-in-oracle-exadata/


NEW QUESTION # 43
You have been tasked with replacing a memory module of an Exadata Storage Server and need to power off the affected storage server. Which two commands must you execute to safely power off the storage server in an Exadata X9M Database Machine?

  • A. CellCLI LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server
  • B. CellCLI alter GRIDDISK all inactive on the affected storage server
  • C. 'crsct1 stop cluster -all' on one of the database servers
  • D. CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server
  • E. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
  • F. shutdown -h now' on the affected storage server

Answer: B,F

Explanation:
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmmn/maintaining-exadata-storage-servers.html#GUID-AE16A1DA-53C6-4E80-94E5-963AA65373AB The two commands that must be executed to safely power off the storage server in an Exadata X9M Database Machine are E and F.
Command E, CellCLI alter GRIDDISK all inactive, will deactivate all of the GRIDDISKS on the affected storage server. This will ensure that no data is lost during the power-off process.
Command F, shutdown -h now, will shut down the storage server. This will ensure that the storage server is completely powered off and no data is lost.
For more information on how to properly power off an Exadata Storage Server, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].
https://support.oracle.com/knowledge/Oracle%20Database%20Products/1188080_1.html


NEW QUESTION # 44
Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?

  • A. ZFSSA may connect directly to the Exadata 100Gb RoCE network switches.
  • B. When backing up multi-rack systems, sharing Exadata X9M switches is recommended.
  • C. Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.
  • D. ZFS Snapshots can provide rapid cloning of development and test environment.

Answer: A,B

Explanation:
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.


NEW QUESTION # 45
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?

  • A. # /opt/oracle.SupportTools/exachk/exachk -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00
  • B. $ ${ORACLE_HOME}/suptools/tfa/release/tfa_home/bin/tfact1 -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00
  • C. # /opt/oracle.SupportTools/ibdiagtools/netcheck/runDiagnostics.pm -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00
  • D. # /opt/oracle.ExaWatcher/GetExaWatcherResults.sh -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

Answer: D

Explanation:
AccordingtoOraclesdocumentationoneoftheutilitiesfordiagnosticsand
Explanation:
repair of Oracle Exadata Storage Server is ExaWatcher, which collects operating system and network metrics on database servers and storage servers. The utility is located in the /opt/oracle.ExaWatcher directory1.
To investigate why an Exadata Database Server stopped communicating on the client network for 10 minutes over the past weekend, you can use the GetExaWatcherResults.sh script to collect and analyze ExaWatcher data for a specified time range1.
Therefore, the command that you should use to investigate this is:
/opt/oracle.ExaWatcher/GetExaWatcherResults.sh -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00


NEW QUESTION # 46
Which two activities are supported on the storage servers in an Exadata Database Machine?

  • A. upgrading a device driver for hard disks when inserting a replacement disk after a hard disk failure
  • B. changing the root password
  • C. upgrading the Storage Server software package using rpm
  • D. installing an alternative package manager
  • E. configuring secure shell user equivalency for the cellmonitor user

Answer: B,E

Explanation:
According to the web search results123, the storage servers in an Exadata Database Machine are mainly used for processing data at the storage level and offloading some SQL operations from the database servers. Therefore, the two activities that are supported on the storage servers are:
1. changing the root password
2. configuring secure shell user equivalency for the cellmonitor user
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmso/exadata-introduction.html


NEW QUESTION # 47
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