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1z0-902 – Oracle Exadata Database Machine X9M Implementation Essentials

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Showing 7–9 of 10 questions

Question 7

Which dbmcli command is NOT valid on Exadata X9M?

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    dbmcli -e "LIST METRICHISTORY WHERE name LIKE 'DS_.*’”
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    dbmcli -e "LIST METRICCURRENT WHERE name = 'DS_TEMP’ ”
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    dbmcli -e "LIST IBPORT DETAIL"
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    dbmcli -e "LIST ALERTHISTORY WHERE agelnMinutes < 15"
Question 8

How do ASM failure groups provide redundancy?

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    Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.
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    Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.
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    They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.
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    Extended Redundancy mirrors data across data centers providing the highest levels of data protection.
Question 9

Your system administrator reports an amber, non-blinking light on one of your Exadata storage disks. You immediately execute the 'list physicaldisk where diskType=HardDisk and status=failed DETAIL' command on the Exadata storage system and the specified disk is indeed reported as failed. Platinum Support has not been enabled for this system. Enterprise Manager Cloud Control is monitoring the system.

What is the next step that you should perform before you do anything else?

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    Ask the system administrator to replace the broken disk with a spare.
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    Check the database to see if any rebalance operations are active.
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    Call Oracle Support and make an appointment so that the drive can be replaced.
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    Wait for the email of the failure that Exadata or Enterprise Manager will send.
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    Download and run the latest exadiag tool.
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    Wait for a blue light to appear on the disk if the rebalance operation is running.