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  The Oracle Exadata Database Machine is an engineered system that provides extreme performance, scalability, and availability for Oracle databases. The Exadata Database Machine combines hardware and software components that are designed and optimized to work together. The Oracle Exadata Database Machine X8M is the latest version of the Exadata Database Machine, and it offers enhanced performance, security, and manageability features. Passing the Oracle 1Z0-902 exam is an excellent way to demonstrate your expertise in implementing and managing the Oracle Exadata Database Machine X8M.

  Oracle 1Z0-902, also known as the Oracle Exadata Database Machine X8M Implementation Essentials Certification Exam, is designed to test the knowledge and skills of professionals who are responsible for implementing and managing Oracle Exadata Database Machine X8M systems. This certification exam is intended for individuals who possess a strong understanding of the Oracle Exadata Database Machine X8M architecture, as well as the ability to install, configure, and manage Exadata systems. Successful completion of this certification exam demonstrates a high level of expertise in implementing and managing Oracle Exadata Database Machine X8M systems.

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  The Oracle 1z1-902 certification exam is an excellent opportunity for professionals who want to validate their skills in implementing and managing Oracle Exadata Database Machine X8M. This certification demonstrates that you have a deep understanding of the Exadata Database Machine X8M and can implement and manage it in an enterprise environment. With this certification, you can enhance your career prospects and open up new opportunities for growth and advancement in the field of database administration.

  Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q21-Q26):

  NEW QUESTION # 21
  Which are two correct statements about backing up Exadata Database Machine?

  • A. Backing up Exadata Storage Server Software is critical for restoration.
  • B. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.
  • C. The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually.
  • D. Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.
  • E. For high availability, system area can be on the first two disks and M.2 devices.

  Answer: A,D

  Explanation:
  [1] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 4: Oracle Clusterware [2] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 8: Oracle Exadata Storage Server Software [3] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 9: Oracle Exadata Storage Server Infrastructure

  
  

  NEW QUESTION # 22
  How do ASM failure groups provide redundancy?

  • A. Failure groups are created for each grid disk to ensure mirror copies are written to the same storage server for faster recovery after a physical disk failure.
  • B. They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.
  • C. Extended Redundancy mirrors data across data centers providing the highest levels of data protection.
  • D. Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.

  Answer: D

  Explanation:
  In an Automatic Storage Management (ASM) environment, failure groups are used to provide redundancy for the storage disks. Failure groups are used to group together a set of disks and ensure that no two copies of the same data are stored on the same physical disk or storage server. This way, if a disk or storage server fails, the data can still be accessed from the other copy.
  For example, if the disks in a failure group are mirrored, one copy of the data is stored on one set of disks, and the other copy is stored on another set of disks. This way, if a disk or storage server fails, the data can still be accessed from the other copy.
  ASM failure groups also provide the option to spread the data across different storage servers, this way, even if a storage server fails, data can still be accessed from the other storage servers in the group. This will improve the availability of the data.

  
  

  NEW QUESTION # 23
  Which of the following is NOT a requirement when validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine?

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

  Answer: A

  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 Oracle Exadata Database Machine X9M Implementation Essentials states that Exadata racks are designed to be installed on flat surfaces, not raised floor environments. It is not required to install the rack on raised floor environments. Additionally, the other options listed are all requirements for validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine. (Source: Oracle Exadata Database Machine X9M Implementation Essentials, page 41)

  
  

  NEW QUESTION # 24
  You have configured a multirack Database Machine with two X9M-8 full racks all in a single cluster and storage grid comprising a total of 4 X9M-8 Database servers and 28 X9M-8 Storage servers.
  Which two options are true regarding the servers on which Enterprise Manager agents must be deployed in order to monitor all components of this multirack configuration?

  • A. on all database servers and at least two storage servers in both racks
  • B. on all database servers in both racks and one storage server in each rack
  • C. on at least two storage servers in both racks
  • D. on only one database server in both racks
  • E. on all database servers in the second rack
  • F. on all database servers in the first rack
  • G. on all storage servers in both racks

  Answer: A,B

  
  

  NEW QUESTION # 25
  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. Normal
  • E. External

  Answer: A

  Explanation:
  https://www.oracle.com/technetwork/database/exadata/maa-exadata-asm-cloud-3656632.pdf

  
  

  NEW QUESTION # 26
  ......

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