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Oracle Exadata Database Machine X8M is a high-end database machine designed for large-scale enterprise data management. It offers a unique combination of hardware and software technologies that deliver high performance, scalability, and reliability. The machine is optimized for running Oracle Database and other Oracle software, and it offers a complete solution for database consolidation and cloud computing. The Exadata Database Machine X8M is a complex system that requires specialized skills and knowledge to install, configure, and manage effectively.

In order to prepare for the Oracle 1z1-902 Certification Exam, candidates are advised to have a good understanding of Oracle database administration, as well as experience working with the Exadata platform. There are a variety of study materials and training courses available to help candidates prepare for the exam, including online courses, practice exams, and study guides. With the right preparation, candidates can pass the Oracle 1z1-902 certification exam and demonstrate their knowledge and skills in implementing the Exadata Database Machine X8M.

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Oracle 1Z0-902 certification exam covers a wide range of topics related to the implementation and management of the Exadata Database Machine X8M. This includes hardware and software installation, configuration, and management, as well as backup and recovery strategies, performance tuning, and troubleshooting. 1z1-902 Exam is designed to test the practical skills and knowledge required to implement and manage the Exadata Database Machine X8M in a real-world environment.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q77-Q82):

NEW QUESTION # 77
I/O performance of the prod database on your Exadata Database Machine has degraded slightly over the past month. The database has been allocated to the OLTP I/O Resource Management (IORM) category.
Which two monitoring tools might be useful in examining I/O performance for the prod database?

A. OS I/O metrics using OS tools such as iostat on the database servers
B. I/O-specific dynamic performance views such as v$iostat_fiie, v$iostat_function, and v$iostat_consumer_group from the prod database instances using SQL *p1us
C. OS I/O metrics using Enterprise Manager host pages for the storage servers
D. cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk
E. OS I/O metrics using OS tools such as iostat on the storage servers

Answer: C,D

Explanation:
1. OS I/O metrics using Enterprise Manager host pages for the storage servers: Enterprise Manager provides a detailed view of the storage server's performance including I/O metrics and statistics. You can use these metrics to analyze I/O performance and identify any bottlenecks.
2. cellcli (or exacli/exadcli) to examine storage server metrics such as database, category, ceiidisk, and griddisk: These commands are used to gather information about storage server performance, including I/O statistics, disk usage, and resource allocation.

NEW QUESTION # 78
Which three statements are true about the CELLCLI command?

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

Answer: A,B,E

Explanation:
The statements that are true about the CellCLI command are:
It has command-line history . According to 1, you can use the up and down arrow keys to scroll through previous commands that you entered in CellCLI . You can also use Ctrl+R to search for a previous command by entering part of it .
It can be executed on storage servers . According to 1, you can invoke CellCLI by logging in to the Exadata cell as cellmonitor , celladmin , or root user and typing "cellcli" . Within CellCLI , you can perform various management and monitoring tasks for the cell134.
It can be executed using the DCLI utility . According to 5, DCLI (distributed CLI) is another utility that can be used to execute scripts and commands across multiple storage cells from a single interface. You can use DCLI to run CellCLI commands on multiple cells at once54.

NEW QUESTION # 79
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. Extended
D. High
E. Normal

Answer: D

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 # 80
Examine this list of software components:
1. Oracle KVM Guest
2. Oracle Enterprise Manager Agent (OMA)
3. ASM instance
4. RDBMS instance
5. Automatic Diagnostic Repository Command Interpreter (ADRCI)
6. CELLCLI
7. Cell Server(CELLSRV)
8. diskmon
9. Restart Server (RS)
10. Management Server (MS)
What is the correct location where these software components can run in the standard Exadata Database Machine deployment?

A. 1, 2, 3, 4, 9 and 10 run on the database servers; 5, 6, 7, 8, 9, and 10 run on the Exadata storage servers.
B. 1, 2, 3, 4, 5, 8, 9 and 10 run on the database servers; 5, 6,7, 9 and 10 run on the Exadata storage servers.
C. 1, 2, 3, 4, 8 and 9 run on the database servers; 5, 6, 7, 9 and 10 run on the Exadata storage servers.
D. 2, 3, 4, 8, and 10 run on the database servers; 1, 5, 6, 7and 9 run on the Exadata storage servers.
E. 3, 4, 8, and 10 run on the database servers; 1, 2, 5, 6, 7 and 9 run on the Exadata storage servers.

Answer: B

NEW QUESTION # 81
You plan to monitor the status of the motherboard, memory, power, fans, and network cards on the database nodes in your Exadata Database Machine using Enterprise Manager.
Where must you set the thresholds for these hardware components and why, to assure that sensor readings, faults, and any related alerts, are visible in Enterprise Manager?

A. No thresholds need to be set because they are preset in the ILOM and in Enterprise Manager
B. Set thresholds in ILOM and in Enterprise Manager because they are not preset anywhere and must be set in both places.
C. No thresholds need to be set because they are preset in the ILOM and these are sufficient for monitoring.
D. Set thresholds only in ILOM because they are not preset anywhere but need to be set only in ILOM.

Answer: A

NEW QUESTION # 82
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