Official Oracle 1z1-902 Practice Test - 1z1-902 Exam Score

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Oracle Exadata Database Machine X8M is a powerful and high-performance database system that is designed to help organizations achieve better performance, scalability, and reliability. The system is built with advanced hardware and software components that work together to deliver faster query processing, reduced downtime, and improved security. By passing the Oracle 1z1-902 Certification Exam, IT professionals can demonstrate their expertise in implementing and managing this system, which can help them advance their careers and open up new job opportunities.

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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.

Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q25-Q30):

NEW QUESTION # 25
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: B

NEW QUESTION # 26
Which of the following is NOT a requirement when validating, receiving, unpacking, and planning access route and space requirements for Exadata Database Machine?

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

Answer: B

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)
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmin/index.html

NEW QUESTION # 27
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?

A. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
B. alert logs for the ASM instances
C. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances
D. alert logs for Enterprise Manager
E. alert logs for the prod database instances

Answer: A,C

NEW QUESTION # 28
You are hardening the security posture of your Exadata Database Machine. Before disabling ssh access to the storage servers, what should you do to enable REST access to the MS process?

A. Install Oracle Rest Data Services on each Database server and install the MS APEX application.
B. The MS Process on the storage servers is natively endowed with REST services, but are not enabled by default.
C. The MS Process on the storage servers is natively endowed with REST services and are enabled by default, however, appropriate roles and users should be created to ensure security.
D. Install Oracle Rest Data Services on each Storage server and install the MS APEX application.

Answer: B

Explanation:
To enable REST access to the MS process, you need to manually enable the REST services on each storage server by running the command cellcli -e "ALTER CELL ENABLE REST" and then configure authentication and authorization to ensure secure access. This is described in detail in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (Chapter 8, Securing the Exadata Database Machine).

NEW QUESTION # 29
Which two quarantine types can disable Smart Scan for multiple databases that offload SQL statements to a cell on an Exadata Database Machine?

A. Disk Region Quarantine
B. SQL Plan Quarantine
C. Manually created Quarantine
D. Cell Offload Quarantine
E. Database Quarantine

Answer: C,E

NEW QUESTION # 30
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