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Oracle 1z1-902 exam, also known as the Oracle Exadata Database Machine X8M Implementation Essentials exam, is a certification exam designed to test the knowledge and skills of IT professionals in implementing and managing the Oracle Exadata Database Machine X8M system. 1Z0-902 Exam is intended for professionals who have experience with this system and want to validate their expertise in this area.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q40-Q45):

NEW QUESTION # 40
What does the following command do?
root@rul6 -]# for j in {01..23} ; do ipmitool sunoem cli "set /SP/network/test ping=192.168.1.1$j'' ; done

A. Sets the test address for the RoCE network for all storage and database servers in a full rack Exadata X9M-2, run from the first database server.
B. Verifies that the ILOM management network is working after OEDA configuration has completed for all storage and database servers in a full rack Exadata X9M-2, run from the first database server.
C. Sets the address for each storage and database server's /SP during installation to enable ping testing from the management network, run from the first database server.
D. Verifies that the ILOM management network is working before installation of all storage and database servers in a full rack Exadata X9M-2, run from the first database server.

Answer: D

Explanation:
The given command uses a for loop with ipmitool to issue ping commands sequentially to a range of IP addresses in the management network:
for j in {01..23}; do ipmitool sunoem cli "set /SP/network/test ping=192.168.1.1$j"; done This script verifies the connectivity of the ILOM management network before the Exadata installation. Each server's Service Processor (SP) is tested for reachability, confirming that the management network setup is operational across the full rack .

NEW QUESTION # 41
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

A. Run the appropriate patchmgr preqequisite check step for each component being updated.
B. Run exachk and resolve only WARNINGS that you have not seen before.
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 patchmgr --all_comp -autofix -autobackup -upgrade -rolling.
F. For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.

Answer: A,C,D,F

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 # 42
Which statement is true about the Persistent Memory Commit Accelerator?

A. Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.
B. Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).
C. Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.
D. Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.
E. Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

Answer: B

Explanation:
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmso/new-features-exadata-system-software-release-23.html

NEW QUESTION # 43
Which of the following is NOT a requirement when validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine?

A. The incline of any access route ramp must be less than or equal to 6 degrees.
B. 914mm of space required above the rack height is required for maintenance access.
C. A conditioned space is required to remove the packaging material to reduce particles before entering the data center.
D. All four leveling and stabilizing feet should be raised and out of the way prior to moving the rack.
E. Oracle Exadata Rack may only be installed on raised floor environments.
F. The entire access route to the installation site should be free of raised-pattern flooring that can cause vibration.

Answer: E

Explanation:
Exadata Database Machine is a pre-configured and pre-tuned hardware and software system designed to run Oracle Database, it can be installed on raised floor environments, but also on concrete or tile floors

NEW QUESTION # 44
Which three statements are true about the CELLCLI command?

A. It requires root privileges to create CELLDISKS and GRIDDISKS.
B. It can be executed using the DCLI utility.
C. It can be executed on storage servers.
D. It has command-line history.
E. It can execute commands on multiple storage servers in parallel.

Answer: B,C,D

Explanation:
The CellCLI utility supports command-line history.
Each Exadata Storage cell can be monitored, configured, and maintained using the cellcli command line interface.
The dcli utility facilitates centralized management across an Oracle Exadata Storage Server Software realm by automating the execution of CellCLI commands on a set of cells and returning the output to the centralized management location where the dcli utility was run.
References: http://docs.oracle.com/cd/E80920_01/SAGUG/exadata-storage-server-cellcli.htm

NEW QUESTION # 45
......

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