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Latest Updated Oracle 1z1-902 Valid Exam Prep - 1z1-902 Oracle Exadata Database Machine X8M Implementation Essentials
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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q32-Q37):

NEW QUESTION # 32
You are in the process of upgrading your nonvirtualized X9M-2 Database Machine elastic configuration with 4 database servers and 7 HC storage servers with an additional 4 database servers and 7 HC storage servers.
The new storage servers are called DM01CEL08 through dmoicel14.
After creating 96 new griddisks, you issued this SQL statement:

How many failgroups if any, will be added to the DATE diskgroup by executing this SQL statement?

  • A. 1 consisting of all 96 griddisks
  • B. 12 consisting of seven griddisks each
  • C. 96 consisting of one griddisk each
  • D. 0 because the new griddisks will be added to the existing faiigroups
  • E. 7 consisting of 12 griddisks each

Answer: B


NEW QUESTION # 33
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?

  • A. alert logs for the ASM instances
  • B. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances
  • C. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
  • D. alert logs for the prod database instances
  • E. alert logs for Enterprise Manager

Answer: A,D

Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources, you can find diagnostic messages related to this problem in the alert logs for the ASM instances and the alert logs for the prod database instances. The alert logs for the ASM instances will provide information related to the offline asm disks, while the alert logs for the prod database instances will provide information related to whether the prod database instances are connected to the ASM instance or not.
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-administering-asm.html


NEW QUESTION # 34
You are concerned about the operating temperature of the database servers in your Exadata Full Rack and want to be alerted if the server exceeds 30C.
What command should use use to generate alerts for such an event?

  • A. dbmcli -e "create threshold ds_temp comparison='>', critical=30" on each database server
  • B. dbmcli -e "set alert ds_temp> 30" on each database server
  • C. dbmcli -e "alert metriccurrent ds_temp where metricValue > 30" on each database server
  • D. dbmcli -e "set threshold ds_temp comparison=' >', critical=30" on each database server

Answer: A

Explanation:
The correct command to generate alerts for an event when the temperature of the database servers in an Exadata Full Rack exceeds 30C is "dbmcli -e "create threshold ds_temp comparison='>', critical=30" on each database server". The dbmcli is the command-line interface for the Oracle Database Management Agent (DMA), which allows you to perform various management tasks on the Exadata servers. This command creates a threshold for the ds_temp metric with a comparison operator of ">" (greater than), and a critical value of 30. The threshold is set on all database servers in the Exadata Full Rack, so when the server temperature exceeds 30C, an alert will be generated.


NEW QUESTION # 35
You have been asked by Oracle Support to check the firmware of the hard & flash disks in a storage server. Which cellcli command should you use to get this information?

  • A. list physicaldisk attributes name, deviceName, diskType, physicalFirmware
  • B. list cell attributes name, deviceName, diskType, physicalFirmware
  • C. list devices attributes name, deviceName, diskType, physicalFirmware
  • D. list celldisk attributes name, deviceName, diskType, physicalFirmware

Answer: A

Explanation:
This command will display the name, deviceName, diskType and physicalFirmware attributes of the physicaldisks in a storage server, as explained in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 85).


NEW QUESTION # 36
Your customer needs to ensure that their data is available on the Exadata machine during updates. The customer wants to be able to update one server at a time but still be protected against single-node server failure.
What ASM redundancy level should they use?

  • A. Sparse
  • B. External
  • C. High
  • D. Extended
  • E. Normal

Answer: E

Explanation:
Your customer needs to ensure that their data is available on the Exadata machine during updates. The customer wants to be able to update one server at a time but still be protected against single-node server failure. This means that they need a redundancy level that can tolerate at least one disk failure without losing data availability or performance. Therefore, the best option for them is normal redundancy . Normal redundancy provides two-way mirroring by default, which means that each data extent has a primary copy and a mirror copy on different disks in different failure groups1. A failure group is a subset of disks within a disk group that are likely to fail at the same time due to common dependencies2. On Exadata Database Machine , each Storage Server is considered as a failure group by default2. This means that if one Storage Server fails or needs to be updated , the data on its disks can still be accessed from another Storage Server that has the mirror copies of the same data extents2. Therefore, normal redundancy ensures data availability and performance during updates or single-node server failures.
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-administering-asm.html


NEW QUESTION # 37
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