STUDY GUIDE 1Z0-902 PDF - 1Z0-902 EXAM BIBLE

Study Guide 1Z0-902 Pdf - 1Z0-902 Exam Bible

Study Guide 1Z0-902 Pdf - 1Z0-902 Exam Bible

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Oracle 1Z0-902 exam covers a broad range of topics related to the implementation of the Exadata Database Machine X8M. Candidates will be tested on their knowledge of the Exadata Database Machine X8M architecture, hardware and software components, deployment and configuration, management and monitoring, backup and recovery, and performance tuning. 1Z0-902 exam is designed to ensure that candidates possess the necessary skills and knowledge to implement and maintain an Exadata Database Machine X8M environment.

Oracle 1z1-902 is an exam that tests the candidate's knowledge and expertise in implementing Oracle Exadata Database Machine X8M. 1Z0-902 exam is designed for individuals who are working as database administrators, system administrators, or technical consultants, and are responsible for implementing and managing Oracle Exadata Database Machine X8M. 1Z0-902 Exam covers various topics related to the installation, configuration, management, and troubleshooting of Oracle Exadata Database Machine X8M.

Oracle 1z1-902 exam consists of 60 multiple-choice questions that must be completed within 105 minutes. 1Z0-902 exam covers a range of topics, including the architecture and components of Oracle Exadata database machines, the installation and configuration of Exadata software and hardware, database administration and performance tuning, and backup and recovery techniques. Candidates who pass 1Z0-902 exam will become Oracle certified professionals in Oracle Exadata database machine X8M implementation essentials.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q82-Q87):

NEW QUESTION # 82
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. The incline of any access route ramp must be less than or equal to 6 degrees.
  • C. The entire access route to the installation site should be free of raised-pattern flooring that can cause vibration.
  • D. A conditioned space is required to remove the packaging material to reduce particles before entering the data center.
  • E. All four leveling and stabilizing feet should be raised and out of the way prior to moving the rack.
  • F. 914mm of space required above the rack height is required for maintenance access.

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


NEW QUESTION # 83
Which two statements are true about Exadata System Software metrics and alerts on an Exadata Database Machine?

  • A. Metric thresholds, if set, will persist across storage and database server reboots.
  • B. Metric alert notifications can be sent to only one destination such as Enterprise Manager OR SNMP OR SMTP.
  • C. Metric alerts are never stateful.
  • D. Metrics have no thresholds set on them by default.
  • E. SMTP metric alert notifications must be sent to both ASR manager and Enterprise Manager agents.

Answer: A,D

Explanation:
Exadata System Software metrics and alerts work as follows:
Persistence of Thresholds: When metric thresholds are configured, they remain active and persist across server reboots. This ensures consistent monitoring behavior even after maintenance or unexpected reboots .
Default Metrics: By default, metrics are collected without predefined thresholds. Administrators must set custom thresholds to enable specific alerting based on their operational requirements.


NEW QUESTION # 84
Which three statements are true about the CELLCLI command?

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

Answer: A,D,E

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 # 85
Which two statements are true in regards to starting the Exadata Virtual Machine?

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

Answer: B,E


NEW QUESTION # 86
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. Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.
  • C. They ensure that the ASM Flex instances are enabled on a maximum of two database servers or VMs per cluster.
  • D. Extended Redundancy mirrors data across data centers providing the highest levels of data protection.

Answer: B

Explanation:
According to Oracle's documentation12, ASM failure groups provide redundancy by storing mirror copies of data on different disks or storage servers. When ASM allocates an extent for a normal redundancy file, ASM allocates a primary copy and a secondary copy. ASM chooses the disk on which to store the secondary copy so that it is in a different failure group than the primary copy1. This way, if one disk or storage server fails, ASM can still access the data from another failure group2.
Therefore, the statement that is true about how ASM failure groups provide redundancy is:
Failure groups contain all ASM disks in a single storage server preventing mirror copies being written to the same storage server.


NEW QUESTION # 87
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