FLEXIBLE ORACLE 1Z0-902 TESTING ENGINE | 1Z0-902 LATEST EXAM REVIEW

Flexible Oracle 1Z0-902 Testing Engine | 1Z0-902 Latest Exam Review

Flexible Oracle 1Z0-902 Testing Engine | 1Z0-902 Latest Exam Review

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Oracle 1Z0-902 (Oracle Exadata Database Machine X8M Implementation Essentials) certification exam is designed for professionals who want to prove their expertise in implementing and managing Oracle Exadata Database Machine X8M systems. 1Z0-902 exam assesses the candidate's knowledge and skills in areas such as Exadata deployment and configuration, storage management, backup and recovery, and database administration. Successful completion of 1Z0-902 Exam leads to the Oracle Certified Specialist credential.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q79-Q84):

NEW QUESTION # 79
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

  • A. Run exachk and resolve only WARNINGS that you have not seen before.
  • B. Run patchmgr --all_comp -autofix -autobackup -upgrade -rolling.
  • C. For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.
  • D. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk.
  • E. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release.
  • F. Run the appropriate patchmgr preqequisite check step for each component being updated.

Answer: B,C,E,F


NEW QUESTION # 80
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. High
  • B. Sparse
  • C. Extended
  • D. External
  • E. Normal

Answer: A

Explanation:
https://www.oracle.com/technetwork/database/exadata/maa-exadata-asm-cloud-3656632.pdf According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book, the customer should use the High redundancy level for their ASM storage in order to ensure that their data is available on the Exadata machine during updates. The High redundancy level provides the most protection against single-node server failure, as it stores three copies of each data file on separate nodes. This is the same redundancy level used for the Oracle Database's Control Files and Redo Logs. Instructions for configuring the ASM redundancy level can be found in the book and can be referenced here: https://docs.oracle.com/cd/E80920_01/E80920/html/x9m_asm_overview.html.


NEW QUESTION # 81
What are the two benefits of using Oracle Exadata Deployment Assistant (OEDA)?

  • A. OEDA is used for Oracle Exadata Database Machine, Zero Data Loss Recovery Appliance, Private Cloud Appliance, and SuperCluster.
  • B. OEDA Web-based user interface cannot import OEDA XML configuration files created with the Java-based version of OEDA without conversion
  • C. OEDA facilitates abstracting hardware.
  • D. OEDA gathers configuration details and creates the Oracle Exadata Rack configuration file.
  • E. OEDA provides a CL1 which supports life cycle management tasks for Exadata systems only.

Answer: D,E

Explanation:
Oracle Exadata Deployment Assistant (OEDA) offers multiple benefits for configuring and deploying Exadata systems:
Configuration Gathering and Rack File Creation: OEDA simplifies the setup of Exadata environments by collecting system-specific configuration details. It uses this information to generate the Exadata Rack configuration file, which outlines the optimal setup for the particular environment, streamlining the deployment process and ensuring compatibility with Oracle best practices .
Lifecycle Management CLI for Exadata Systems: OEDA includes a command-line interface (CLI) that facilitates various lifecycle management tasks, specifically designed for Exadata systems. This CLI helps in automating deployment steps, adjusting configurations, and updating system parameters, tailored specifically for Exadata's hardware and software environment .


NEW QUESTION # 82
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 "set threshold ds_temp comparison=' >', critical=30" on each database server
  • D. dbmcli -e "alert metriccurrent ds_temp where metricValue > 30" on each database server

Answer: C

Explanation:
The Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 5-54) recommends using the dbmcli command to set thresholds on metrics, such as temperature. To do this, you should use the following command:
dbmcli -e "set threshold ds_temp comparison=' >', critical=30" on each database server.
This will generate an alert if the temperature exceeds 30C.


NEW QUESTION # 83
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

  • A. cell PMEM cache Read Hits in the Database IOs portion of the Performance Summary
  • B. PMEM Pool Misses in the Exadata Outlier Summary
  • C. PMEM Cache section within Memory Statistics
  • D. PMEM Cache section within Exadata Smart Statistics
  • E. PMEM Pool cache Read Hits in the Cache Sizes portion of the Report Summary

Answer: A,C

Explanation:
The "cell PMEM cache Read Hits" in the "Database IOs" portion of the "Performance Summary" will show the number of reads that have been satisfied from the Persistent Memory Cache. The "PMEM Cache" section within "Memory Statistics" will give detailed information about the usage of the Persistent Memory Cache, such as cache size, used size, hit rate, etc. This information can help to identify if the Persistent Memory Cache is being used effectively and if there are any issues with it.


NEW QUESTION # 84
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