FREE PDF VALID 1Z1-902 - ORACLE EXADATA DATABASE MACHINE X8M IMPLEMENTATION ESSENTIALS VCE EXAM

Free PDF Valid 1z1-902 - Oracle Exadata Database Machine X8M Implementation Essentials Vce Exam

Free PDF Valid 1z1-902 - Oracle Exadata Database Machine X8M Implementation Essentials Vce Exam

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Oracle Exadata Database Machine is a pre-configured, pre-tuned and pre-tested data center appliance that is optimized for database workloads. It offers high-performance, scalability, and reliability for both OLTP and data warehousing workloads. Oracle Exadata X8M is the latest version of the Oracle Exadata Database Machine, which includes enhanced hardware and software features to further improve performance and availability.

Oracle Exadata Database Machine X8M is a high-performance database appliance designed for enterprises that require extreme performance and reliability. It is a complete package that includes hardware, software, and storage, and is optimized for running Oracle Database. The machine is designed to handle massive amounts of data and processing power, making it an ideal platform for large-scale data processing and analytics.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which two statements are true in regards to starting the Exadata Virtual Machine?

  • A. To see Oracle Linux boot messages during guest startup, use -console option with the vm_maker -start-domain command.
  • B. Use vm_maker -auto-start command to configure a virtual machine to start automatically when the KVM host is started.
  • C. To streamline the diagnosis of virtual machines, one ISO file is used for multiple Oracle Exadata System Software releases.
  • D. Use vm_maker -start-domain to start a virtual machine manually.
  • E. Use vm_maker boot-from-iso command to boot a virtual machine.

Answer: B,D

Explanation:
Statement B is true as the vm_maker -start-domain command can be used to start a virtual machine manually, as stated in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 65).
Statement E is also true as the vm_maker -auto-start command can be used to configure a virtual machine to start automatically when the KVM host is started [1][2], as stated in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 66).


NEW QUESTION # 19
What are two recommended configuration best practices for backup and recovery on Exadata?

  • A. Even if the backup was limited to writing to four tape drives, eight channels could be specified to expedite the restore process.
  • B. When off-site long-term backup retention is needed, use Oracle Database Backup Cloud Service as a low-cost, offsite scalable storage for a disaster recovery solution.
  • C. The internal Recovery Appliance backup and restore processing is optimized when the RMAN FILESPERSET parameter is set to 1 for the level 1 incremental backup set.
  • D. Placing the backup network on dedicated switches installed in the top of the rack (ToR) has the benefits of isolating the backup network from other workloads and providing a greater level of control.

Answer: B,D


NEW QUESTION # 20
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. 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.
  • B. The MS Process on the storage servers is natively endowed with REST services, but are not enabled by default.
  • C. Install Oracle Rest Data Services on each Storage server and install the MS APEX application.
  • D. Install Oracle Rest Data Services on each Database server and install the MS APEX application.

Answer: A

Explanation:
The MS process on Exadata storage servers is natively endowed with REST services and these services are enabled by default. However, it is important to create appropriate roles and users to ensure security when accessing these services. This way, it is possible to disable ssh access to the storage servers, and still enable REST access to the MS process. It's not necessary to install Oracle Rest Data Services on each Database or Storage server or install the MS APEX application, the MS process on the storage servers already have REST services by default.


NEW QUESTION # 21
Which two statements are true about applying updates on Exadata systems?

  • A. Failed database server updates are rolled back to a working state on a previous release automatically.
  • B. When running a "yum update" for a new Exadata release, all other repositories should be disabled.
  • C. Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum -exclude option.
  • D. To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.
  • E. For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.
  • F. Failed storage server updates are automatically rolled back to a previous release.

Answer: B,F

Explanation:
According to Oracle's documentation12, some of the statements that are true about applying updates on Exadata systems are:
Failed storage server updates are automatically rolled back to a previous release1.
When running a "yum update" for a new Exadata release, all other repositories should be disabled1.


NEW QUESTION # 22
What is the maximum DRAM capacity you can expand an X9M-2 DB Server?

  • A. 1536GB
  • B. 512GB
  • C. 384GB
  • D. 2048GB
  • E. 768GB
  • F. 1024GB

Answer: F

Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book, the maximum DRAM capacity you can expand an X9M-2 DB Server is 1024GB. This is the maximum amount of DRAM that can be installed in the server. The specific steps for adding DRAM are outlined in the book and can be referenced here: https://docs.oracle.com/cd/E80920_01/E80920/html/x9m_hardware_memory.html.


NEW QUESTION # 23
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