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1z1-902 New Dumps, 1z1-902 VCE Exam Simulator

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Oracle 1z1-902 Certification Exam consists of 60 multiple-choice questions and has a time limit of 105 minutes. 1z1-902 exam is available in multiple languages, including English, Japanese, and Simplified Chinese. To pass the exam, candidates must score at least 63% on the exam. Candidates who pass the exam will receive an Oracle Certified Specialist certification that is recognized worldwide.

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Oracle 1z1-902 Exam is designed to test the knowledge and skills of IT professionals who are interested in implementing and managing the Oracle Exadata Database Machine X8M. 1z1-902 exam is one of the most sought-after certifications in the IT industry due to the increasing demand for professionals who can manage large databases and ensure their optimal performance.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q13-Q18):

NEW QUESTION # 13
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

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

Answer: B,C,D,E

Explanation:
For database servers, perform a server backup using patchmgr -dbnodes dblistfile -backup -rolling. This is according to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book . The other statement is false as exachk should not be used to resolve warnings or errors [1], but rather to identify them so that they can be addressed. Additionally, patchmgr should not be used with the --autofix, --autobackup, --upgrade, or --rolling flags as this could cause unexpected issues.

NEW QUESTION # 14
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> list GRIDDISK where status != 'inactive' on the affected storage server
C. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
D. shutdown -h now' on the affected storage server
E. CellCLI alter GRIDDISK all inactive on the affected storage server
F. 'crsct1 stop cluster -all' on one of the database servers

Answer: D,E

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 # 15
Which two options describe the flash memory capabilities of the Exadata X9M-2 database and storage severs?

A. 4 x 6.4 TB NVMe flash cards on the High Capacity (HC) storage server
B. No flash storage on the database server
C. 8 x 6.4 TB NVMe flash cards on the Extreme Flash (EF) storage server
D. 8x 6.4 TB NVMe flash cards on the Extended (XT) storage server
E. 4 x 6.4 TB NVMe flash cards on the database server

Answer: A,C

Explanation:
In the Exadata X9M-2 configuration:
High Capacity (HC) Storage Server: Each HC storage server is equipped with 4 x 6.4 TB NVMe flash cards. These flash cards serve as a cache layer to accelerate I/O performance, especially for read-heavy and mixed workload environments. This configuration combines large storage capacity with NVMe flash for optimal data processing.
Extreme Flash (EF) Storage Server: Each EF storage server contains 8 x 6.4 TB NVMe flash cards, which provides extremely high IOPS and low latency. This configuration is designed for applications demanding high-performance flash storage, making it suitable for intensive OLTP and analytical workloads.
Database Server Flash Storage: The Exadata X9M-2 database servers themselves do not include flash storage as part of their default configuration, which aligns with option D. However, since option E is correct, we do not include D as the other correct answer.

NEW QUESTION # 16
Which three steps are required to expand an Exadata X9M-2 Database Server with the lowest memory configuration available to the highest memory configuration?

A. Add 12x 64GB DIMMs.
B. Add 24x 32GB DIMMs.
C. Remove existing memory modules.
D. Add 32x 64GB DIMMs.
E. Memory cannot be expanded on Exadata X9M-2 Database Servers.
F. Add 12x 32GB DIMMs.
G. Add 16x 64GB DIMMs.
H. Shutdown the Database Server if running.
I. Add 16x 32GB DIMMs.

Answer: C,G,H

Explanation:
1. Remove existing memory modules: Before adding new memory modules, the existing memory modules should be removed.
2. Add 16x 64GB DIMMs: The new DIMMs should be added, in this case is 16 DIMMs of 64GB each, which will expand the memory to the highest configuration available.
3. Shutdown the Database Server if running: The Database Server should be shutdown before adding new memory modules in order to prevent any possible data loss or corruption.

NEW QUESTION # 17
Which two statements are true about enabling write-back flash cache?

A. Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.
B. Before write-back flash cache is enabled, you need to drop the Flash Cache first.
C. Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.
D. When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.
E. When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.

Answer: D,E

Explanation:
When enabling write-back flash cache in a rolling manner, it is important to use DBCLI to inactivate the grid disks on all cells first so that all the cells are in the same state before the process is started. In a non-rolling manner, you must drop the Persistent Memory Commit Accelerator (PMEMLog) first. Write-back flash cache is not on by default for High Capacity Storage Servers in High Redundancy configurations and can be used on Extreme Flash Storage Servers. It's also important to check if it's necessary to drop the flash cache before enabling write-back flash cache.

NEW QUESTION # 18
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