PASS GUARANTEED 2025 1Z1-902: RELIABLE ORACLE EXADATA DATABASE MACHINE X8M IMPLEMENTATION ESSENTIALS RELIABLE TEST CAMP

Pass Guaranteed 2025 1z1-902: Reliable Oracle Exadata Database Machine X8M Implementation Essentials Reliable Test Camp

Pass Guaranteed 2025 1z1-902: Reliable Oracle Exadata Database Machine X8M Implementation Essentials Reliable Test Camp

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To pass the Oracle 1Z0-902 exam, candidates must demonstrate their ability to install, configure, and manage Oracle Exadata Database Machine X8M systems. They must also have a deep understanding of the architecture, features, and capabilities of this technology. In addition, candidates must demonstrate their ability to troubleshoot, optimize, and maintain Oracle Exadata Database Machine X8M systems to ensure optimal performance and availability. Successful candidates will be able to use their knowledge and skills to design and implement Oracle Exadata solutions that meet the needs of their organizations.

Oracle 1z1-902 Exam is an essential certification for IT professionals who seek to specialize in Oracle Exadata database machine implementation. Oracle Exadata Database Machine X8M Implementation Essentials certification will validate their skills and knowledge, making them more competitive in the job market and providing them with the ability to effectively deploy and manage Oracle Exadata database machines in real-world scenarios.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q23-Q28):

NEW QUESTION # 23
Assume that the RDBMS and ASM instances are up and you are enabling write-back flash cache in one cell server at a time.
Which step(s) should you perform before executing the following command you your Exadata X9M-8 Database Machine, which will set the cell flash cache mode to write-back?
#cellcli -e alter cell flashCacheMode=WriteBack

  • A. Disable the storage indexes on the cell.
  • B. Create a new flash cache on the cell.
  • C. Inactivate the grid disks on the cell.
  • D. Inactivate all the physical disks on the cell.
  • E. Drop the existing flash cache on the cell.
  • F. Shut down the CELL5RV service on the cell.

Answer: B,E

Explanation:
To enable the write-back flash cache on an Exadata X9M-8 storage cell, the existing flash cache must be removed before transitioning to a new mode. This is because the flash cache configuration-whether set to write-through or write-back-requires a re-initialization of the flash storage to apply the new caching behavior. The steps are as follows:
Drop the Existing Flash Cache: Before altering the cache mode, any existing flash cache on the cell must be dropped. This clears the existing configuration and allows the system to reallocate flash resources under the new mode. The command for this is:
# cellcli -e "drop flashcache"
Create a New Flash Cache in Write-Back Mode: After dropping the existing flash cache, you can create a new flash cache with write-back mode enabled. This step ensures that the flash cache is configured correctly to handle write operations before they reach disk, thus accelerating write-heavy workloads. The relevant command to set write-back mode is:
# cellcli -e "create flashcache all"
This process will reset the flash cache with the write-back mode enabled, thereby caching both read and write operations effectively.


NEW QUESTION # 24
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. upgrading the Storage Server software package using rpm
  • C. changing the root password
  • D. installing an alternative package manager
  • E. configuring secure shell user equivalency for the cellmonitor user

Answer: C,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 # 25
An Exadata X9M-2 Elastic Rack with 4 Database Servers and 8 HC Storage Servers and 3-phase 24kVA PDUs is being installed in a Data Center. However, the Data Center is only providing enough power for a single cable from each PDU. Which statement is correct?

  • A. The installation cannot proceed until two power feeds are available per PDU.
  • B. A splitter cable can be used to provide power to all PDU cables.
  • C. The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.
  • D. The installation can go ahead, no change is required.

Answer: C


NEW QUESTION # 26
Which two sections of the AWR report shows statistics for X9M Persistent Memory Cache?

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

Answer: D


NEW QUESTION # 27
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 "set 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 "create threshold ds_temp comparison='>', critical=30" on each database server

Answer: B


NEW QUESTION # 28
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