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完全版は2025年最新の1z1-902試験問題集テストガイドはトレーニング専門問題 [Q40-Q65]

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完全版は2025年最新の1z1-902試験問題集テストガイドはトレーニング専門問題

試験準備と合格するための最高なカバー率問題集を提供しています これで試験準備せよ1z1-902


Oracle Exadata Database Machine X8Mは、エンタープライズワークロードの最高クラスのパフォーマンス、スケーラビリティ、信頼性を提供するように設計された高性能なデータベースマシンです。大量のデータを高速かつ効率的に処理する必要がある組織にとって理想的なソリューションです。Oracle Exadata Database Machine X8Mは、ハードウェアとソフトウェア技術の強力な組み合わせに基づいて構築されており、卓越したパフォーマンスを提供するように共同作業しています。

 

質問 # 40
Which two of the following network connection types can be deployed on the client network ports of an Exadata X9M-2 Database Server?

  • A. 2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and 2x 25Gb ports on eth5 and eth6 using SFP28 transceivers and OM4 fiber cable for client network
  • B. 2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fibre cable for client network, and 2x 10Gb ports on eth9 and eth10 using RJ45 cat6 cable for backup network
  • C. 2x 10Gb ports on eth1 and eth2 using FU45 cat6 cable for client network, and 2x 25Gb ports on eth11 and eth12 using SFP28 transceivers and OM4 fiber cable for backup network
  • D. 2x 25Gb ports on eth1 and eth2 using SFP28 transceivers and OM4 fiber cable for backup network, and 2x 10Gb ports on eth3 and eth4 using RJ45 cat6 cable for client network

正解：A、B

解説：
https://www.oracle.com/a/ocom/docs/engineered-systems/exadata/exadata-x9m-2-ds.pdf


質問 # 41
Which four actions should you take before proceeding with applying updates to your Exadata Database Machine?

  • A. For database servers, perform a server backup using patchmgr -dbnodes db_list_file -backup -rolling.
  • B. Run exachk and resolve only WARNINGS that you have not seen before.
  • C. Check the Exadata Critical Issues My Oracle Support note 1270094.1 for any issues not added to the latest version of exachk.
  • D. Run patchmgr --all_comp -autofix -autobackup -upgrade -rolling.
  • E. Run the appropriate patchmgr preqequisite check step for each component being updated.
  • F. Consult My Oracle Support note 888828.1 to determine the current recommended Exadata software release.

正解：A、C、E、F


質問 # 42
Which statement is true about the Persistent Memory Commit Accelerator?

  • A. Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.
  • B. Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.
  • C. Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.
  • D. Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.
  • E. Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).

正解：E

解説：
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmso/new-features-exadata-system-software-release-23.html


質問 # 43
You have a script with several CELLCLI commands that must be executed on each cell in your Exadata full rack. The script must run on each cell simultaneously. How must you achieve this?

  • A. Copy the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.
  • B. Copy the script to all storage servers using the CELLCLI command and execute it on all storage servers in parallel using the CELLCLI command.
  • C. Copy and execute the script on all storage servers using the EXACLI command.
  • D. Copy the script to all storage servers using the dcli command and manually execute it on all storage servers using the EXACLI command.
  • E. Copy and execute the script on all storage servers using the dcli command.

正解：B

解説：
This can be done by using the 'cellcli -e' command, which allows you to execute commands in parallel on all storage servers. For more information about executing CELLCLI commands in parallel, please refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].


質問 # 44
How do ASM failure groups provide redundancy?

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

正解：D

解説：
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.


質問 # 45
Your system administrator reports an amber, non-blinking light on one of your Exadata storage disks. You immediately execute the 'list physicaldisk where diskType=HardDisk and status=failed DETAIL' command on the Exadata storage system and the specified disk is indeed reported as failed. Platinum Support has not been enabled for this system. Enterprise Manager Cloud Control is monitoring the system.
What is the next step that you should perform before you do anything else?

  • A. Wait for the email of the failure that Exadata or Enterprise Manager will send.
    E Download and run the latest exadiag tool.
  • B. Ask the system administrator to replace the broken disk with a spare.
  • C. Wait for a blue light to appear on the disk if the rebalance operation is running.
  • D. Check the database to see if any rebalance operations are active.
  • E. Call Oracle Support and make an appointment so that the drive can be replaced.

正解：B


質問 # 46
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. To speed up applying storage server updates in a rolling manner, updating two storage servers simultaneously is recommended.
  • C. Updating kernel and RDMA packages on storage cells should be prevented by excluding them with the yum -exclude option.
  • D. Failed storage server updates are automatically rolled back to a previous release.
  • E. When running a "yum update" for a new Exadata release, all other repositories should be disabled.
  • F. For regular Exadata updates, yum automatically installs a non-UEK kernel, which can be selected to boot from grub.

正解：A、F


質問 # 47
Which of the below is NOT a precaution that should be adhered to in order to ensure the site is safe and ready for

  • A. When using shared grounding, the grounding resistance must not be greater than 10 ohms.
  • B. Be sure that each grounding wire used for Oracle Exadata Rack is used exclusively for Oracle Exadata Rack.
  • C. Do not install Oracle Exadata Rack in a location that is exposed to direct sunlight.
  • D. Do not install Oracle Exadata Rack near a photocopy machine.
  • E. Do not use a flathead screwdriver to disconnect connector locks on LAN cables.
  • F. Do not place anything on top of Oracle Exadata Rack.

正解：D

解説：
When preparing a site for an Exadata Database Machine, several precautions ensure both the safety of the installation and the optimal performance of the equipment. These precautions include:
Avoiding High-Interference Equipment: Installing near devices like photocopy machines, which can emit electromagnetic interference (EMI), is not a specified precaution for Exadata installations. However, attention should be given to site requirements for temperature, power, and proper grounding connections .
In contrast, other site requirements include exclusive grounding for Exadata racks, avoiding direct sunlight exposure, and ensuring grounding resistance is less than 10 ohms for shared grounding to minimize electrical risks.


質問 # 48
Which are two valid reasons for executing an X9M-2 Exadata storage server rescue procedure?

  • A. the failure of physical disk 1
  • B. accidental loss of all data from all griddisks in a storage server
  • C. moving all disks from one cell to another as part of a chassis-level component failure
  • D. the failure of physical disk 0 and 11
  • E. the failure of both physical M.2 disks
  • F. corruption in the / (root) filesystem
  • G. corruption in a normal or high redundancy ASM diskgroup

正解：B、F

解説：
Reason B, corruption in the / (root) filesystem, is a valid reason for executing a storage server rescue procedure. If the root filesystem is corrupted, the storage server will no longer be able to boot and will need to be rescued.
Reason F, accidental loss of all data from all griddisks in a storage server, is also a valid reason for executing a storage server rescue procedure. If all data is accidentally lost from the griddisks in a storage server, the server will need to be rescued in order to recover the data.
For more information about the Exadata X9M-2 storage server rescue procedure, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources.
Search results: [1] Oracle Exadata Database Machine X9M-2 Full Rack Installation - Oracle Docs [2] Oracle Exadata Database Machine X9M-2 Storage Server Rescue Procedure - Oracle Docs [3] Oracle Exadata Database Machine X8M-2 Mid-Size Rack Installation - Oracle Docs [4] Oracle Exadata Database Machine X8M-2 Storage Server Rescue Procedure - Oracle Docs [5] Oracle Exadata Database Machine X9M-2 Storage Server Update Procedure - Oracle Docs [6] Oracle Exadata Database Machine X8M-2 Storage Server Update Procedure - Oracle Docs


質問 # 49
Which three statements are true about the CELLCLI command?

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

正解：A、B、E

解説：
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


質問 # 50
Which statement is true about the disks that are used in ASM diskgroups on the Exadata platform?

  • A. The grid disks in ASM diskgroups must have similar performance characteristics in addition lo having the same size.
  • B. Sparse diskgroups are virtual objects allocated from the DATA diskgroup.
  • C. In an Exadata storage server, each disk is placed into a separate failure group.
  • D. If High redundancy is selected, grid disks from the primary and secondary Exadata Database Machine must be specified.
  • E. Extreme Flash (EF) and High Capacity (HC) disks can be mixed to any capacity within the same diskgroup.

正解：A

解説：
On Exadata systems, ASM disk group configurations require that:
Grid Disks Must Have Similar Performance Characteristics: Within a disk group, grid disks must not only be of the same size but also need to exhibit similar performance traits. This consistency ensures balanced I/O operations and optimizes the performance for ASM mirroring and striping across disks.
Sparse Diskgroups: These are specialized virtual objects that reside within the DATA disk group. Sparse diskgroups are used to support snapshots and other space-efficient storage solutions by creating virtual representations of grid disks within an existing disk group without consuming additional physical space.
These characteristics are fundamental to ensuring that ASM maintains optimal performance and storage efficiency on Exadata platforms.


質問 # 51
You have been asked to design a backup solution for an Exadata X9M-2 Quarter Rack with Extreme Flash Storage Servers connected to a new ZFS Storage Appliance ZS7 with 2 Storage Controllers with 100Gb Ethernet cards and 3 Storage Trays. You are using Oracle Exadata Configuration Assistant to validate the rack layout.
1. Use "Add Equipment" to add the Exadata X9M EF Storage Servers, starting from RU10.
2. Use drop down to add ZFS Storage Appliance Controllers.
3. You cannot add ZFS Storage Appliance to an Exadata Rack.
4. Use "Add Equipment" to add the ZFS Storage Trays, starting from RU1.
5. Use drop down to add ZFS Storage Trays.
6. Use "Add Equipment" to add the Exadata X9M Database Servers, starting from RU16.
7. Use "Add Equipment" to add the Exadata X9M EF Storage Servers, starting from RU1.
8. Use drop down to add Exadata X9M EF Storage Servers.
9. Use "Add Equipment" to add the ZFS Storage Controllers, starting from RU27.
10. Use drop down to add Exadata X9M Database Servers.
11. Use "Add Equipment" to add the ZFS Storage Trays, starting from RU31.
Which of these steps are correct and what is their correct order?

  • A. 7,6,9,11
  • B. 4,1, 6, 9
  • C. 10, 8, 9, 11
  • D. 10, 8, 2, 5
  • E. 0

正解：C

解説：
The correct order of steps is 10, 8, 9, 11. The 10th step is to use the drop down to add Exadata X9M Database Servers, the 8th step is to use the drop down to add Exadata X9M EF Storage Servers, the 9th step is to use "Add Equipment" to add the ZFS Storage Controllers, and the 11th step is to use "Add Equipment" to add the ZFS Storage Trays. These steps are referenced in the Oracle Exadata Database Machine X9M Implementation Essentials Official Textbook, which is available online at https://docs.oracle.com/cd/E80437_01/E80437/html/index.html.
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmin/configuring-exadata.html


質問 # 52
You are working on a remote Exadata Database Machine with current software and firmware. You now need to start a storage server after hardware maintenance.
Which ILOM command starts the storage server?

  • A. -> set /SYS power_state=ON
  • B. -> start /System
  • C. -> start /SYSTEM/power
  • D. You must be physically present in the data center to start an Exadata Storage Server.
  • E. -> start /SP/console
  • F. -> start /SYS/power

正解：B


質問 # 53
Which are three customer options for hosting the Platinum Services Advanced Support Gateway?

  • A. Install on Exadata Engineered System.
  • B. Purchase the recommended x86 64-Bit gateway hardware from Oracle.
  • C. Install on Oracle Database Appliance.
  • D. Provide individual x86 64-Bit gateway hardware.
  • E. Install in Oracle Virtual Machine with required hardware.

正解：B、C、D

解説：
According to Oracle's documentation1, the customer options for hosting the Platinum Services Advanced Support Gateway are:
Provide individual x86 64-Bit gateway hardware1
Purchase the recommended x86 64-Bit gateway hardware from Oracle1
Install on Oracle Database Appliance2


質問 # 54
Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?

  • A. Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.
  • B. ZFS Snapshots can provide rapid cloning of development and test environment.
  • C. ZFSSA may connect directly to the Exadata 100Gb RoCE network switches.
  • D. When backing up multi-rack systems, sharing Exadata X9M switches is recommended.

正解：C、D

解説：
A) ZFS Storage Appliance (ZFSSA) can't connect directly to the Exadata 100Gb RoCE network switches. ZFSSA uses Fibre Channel protocol to connect to the Exadata storage cells.
C) When backing up multi-rack systems, sharing Exadata X9M switches is not recommended. Each rack should have its own switches to minimize the risk of data loss due to switch failure.
Review the safety guidelines.
Unpack Oracle Exadata Rack.
Let the Exadata acclimatize for 24 hours.
Place Exadata in its allocated space.
Stabilize the Exadata Rack.
Power on Exadata PDU A.
Power on Exadata PDU B.
This order ensures that the necessary safety precautions are taken before installing the Exadata Database Machine, and that the machine is allowed to acclimate to its new environment before being powered on.


質問 # 55
Which three statements are true concerning the configuration or use of Enterprise Manager Cloud Control to monitor and manage Exadata Database Machine components?

  • A. Oracle management agents must only be installed on one storage node in a Database Machine to enable monitoring and management of all storage node.
  • B. Compute nodes forward their SNMP traps to the Management Server process on the same compute node.
  • C. Oracle management agents must only be installed on one compute node in a Database Machine to enable monitoring and management of all compute nodes and storage nodes.
  • D. Cloud Control can monitor and manage a Database Machine storage Expansion rack.
  • E. Storage nodes forward their SNMP traps to the Management Server process on the same storage node.
  • F. Cloud Control cannot monitor partitioned Exadata Database Machine systems.

正解：A、C、D

解説：
Oracle Enterprise Manager (EM) Cloud Control provides comprehensive monitoring and management for Exadata Database Machines, including:
Support for Database Machine Storage Expansion Racks: EM Cloud Control seamlessly integrates with the Storage Expansion Rack, allowing administrators to monitor both primary and expansion storage environments together, which is essential for large-scale deployments.
Minimal Agent Installation: Cloud Control needs only one Oracle Management Agent on one compute node to monitor the entire Database Machine cluster, covering all compute and storage nodes. This is due to Exadata's interconnect and resource-sharing capabilities, enabling centralized monitoring with minimal setup requirements.


質問 # 56
You have been asked to design a backup solution for an Exadata X9M-2 Quarter Rack with Extreme Flash Storage Servers connected to a new ZFS Storage Appliance ZS7 with 2 Storage Controllers with 100Gb Ethernet cards and 3 Storage Trays. You are using Oracle Exadata Configuration Assistant to validate the rack layout.
1. Use "Add Equipment" to add the Exadata X9M EF Storage Servers, starting from RU10.
2. Use drop down to add ZFS Storage Appliance Controllers.
3. You cannot add ZFS Storage Appliance to an Exadata Rack.
4. Use "Add Equipment" to add the ZFS Storage Trays, starting from RU1.
5. Use drop down to add ZFS Storage Trays.
6. Use "Add Equipment" to add the Exadata X9M Database Servers, starting from RU16.
7. Use "Add Equipment" to add the Exadata X9M EF Storage Servers, starting from RU1.
8. Use drop down to add Exadata X9M EF Storage Servers.
9. Use "Add Equipment" to add the ZFS Storage Controllers, starting from RU27.
10. Use drop down to add Exadata X9M Database Servers.
11. Use "Add Equipment" to add the ZFS Storage Trays, starting from RU31.
Which of these steps are correct and what is their correct order?

  • A. 7,6,9,11
  • B. 10, 8, 2, 5
  • C. 10, 8, 9, 11
  • D. 0
  • E. 4,1, 6, 9

正解：E


質問 # 57
Which two statements are true for the Oracle Exadata Configuration Assistant (OECA)?

  • A. OECA extends the hardware for the elastic configuration only.
  • B. OECA reconfigures the size of disk groups and recreates grid disks.
  • C. OECA allows one XT storage server in the configuration.
  • D. OECA's "Add Equipment" input option allows allocation of RU slots for customer equipment.
  • E. OECA facilitates PDU power selection initially and after equipment addition.

正解：A、E

解説：
B and E are true statements for the Oracle Exadata Configuration Assistant (OECA). OECA facilitates PDU power selection initially and after equipment addition, and it allows for the elastic configuration of the hardware. It does not reconfigure the size of disk groups or recreate grid disks, nor does it allow for a single XT storage server in the configuration. The "Add Equipment" input option does allow for the allocation of RU slots for customer equipment.
References for this information can be found in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources.
Search results: [1] Oracle Exadata Database Machine X8-2 [1][2]: Configuration Assistant Guide ... The Oracle Exadata Configuration Assistant (OECA) is a web-based tool that can ... [2] The Oracle Exadata Configuration Assistant (OECA) is a web-based tool that can be used to ... Add Equipment: This input option allows you to allocate RU slots for ... [3] Oracle Exadata Database Machine X7-2 and X7-2L Installation Guide ... The Oracle Exadata Configuration Assistant (OECA) is a web-based tool that can ... [4] The Oracle Exadata Configuration Assistant (OECA) is a web-based tool that can be used to ... Power Selection [1][2]: This input option allows you to select PDU power initially ... [5] Oracle Exadata Database Machine X7-2 and X7-2L Installation Guide ... The Oracle Exadata Configuration Assistant (OECA) is a web-based tool that can ...


質問 # 58
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 Storage 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 Database server and install the MS APEX application.

正解：C


質問 # 59
Which three of the following options are available for database consolidation on Exadata?

  • A. Bare Metal deployment with one database per database server
  • B. A single database with one or more schema per application
  • C. Multiple databases spanning a Bare Metal and Virtual Machine cluster to provide resource isolation and consolidation concurrently
  • D. Multiple Databases on a cluster
  • E. Multiple Virtual Machine clusters supporting a single database for greatest resource isolation
  • F. Multiple pluggable databases in one or more container databases on a Virtual Machine or Bare Metal cluster

正解：D、E、F


質問 # 60
In order two support a new application, you are planning to add a RAC VM cluster to an existing Oracle Exadata X9M-2 deployment.
Which two methods can be considered?

  • A. Use Oracle VM Manager.
  • B. Use domu_maker utility.
  • C. Use the OEDA web-based configuration tool.
  • D. Use the OEDA Command line interface.
  • E. Use the xm command.

正解：C、D

解説：
For adding a new RAC (Real Application Clusters) VM cluster to an existing Oracle Exadata X9M-2 deployment, you can utilize the Oracle Exadata Deployment Assistant (OEDA). OEDA is available in two interfaces:
OEDA Web-based Configuration Tool: This web-based interface facilitates the configuration of Exadata environments, supporting both physical and virtual deployments. The graphical interface helps in defining VM clusters, including RAC clusters, and ensures the configuration aligns with Oracle best practices.
OEDA Command Line Interface (CLI): For more advanced or automated tasks, the command-line interface (oedacli) allows for precise control over the deployment process. It supports various configuration actions such as adding or removing clusters, resizing ASM disk groups, and managing VM clusters.
These tools are specifically designed for Exadata configurations and provide a streamlined approach for deploying and managing RAC clusters in both physical and virtualized environments.


質問 # 61
Your customer would like to configure monitoring capabilities Auto Service Request (ASR) on the stand-alone server that was set aside to run ASR Manager.
What configuration should you set up for the customer?

  • A. Enterprise Manager, Exachk and ASR Manager on the stand-alone server because ASR needs Exachk for continuous Hardware monitoring.
  • B. ASR Manager with SNMP traps configured to listen for specific alerts triggered by Exadata Intergrated Lights Out Manager (ILOM).
  • C. Enterprise Manager and ASR Manager on the stand-alone server because ASR is not a monitoring tool.
  • D. ASR Manager inside the firewall along with ExaWatcher to monitor Database and Storage Server performance.

正解：B

解説：
For setting up Auto Service Request (ASR) monitoring on a standalone server dedicated to ASR Manager:
ASR Manager with SNMP Traps: Configuring ASR Manager to utilize SNMP traps allows it to automatically receive alerts from the Integrated Lights Out Manager (ILOM) on Exadata components. The SNMP traps notify ASR Manager of specific hardware faults or critical system events, which then automatically generate service requests with Oracle Support.
This setup ensures proactive monitoring and allows rapid response to any critical alerts related to the Exadata hardware, leveraging the ILOM's ability to monitor key system health metrics and trigger alerts as necessary.


質問 # 62
Which three statements are true about Oracle Configuration Manager (OCM) for an Exadata Database Machine?

  • A. Collected configuration information can be uploaded manually to Oracle.
  • B. It collects configuration information automatically.
  • C. Collected configuration information can be uploaded automatically to Oracle.
  • D. It is mandatory to install OCM on all database servers.
  • E. It is mandatory to install OCM on at least one database server.
  • F. It collects configuration information on demand.

正解：A、D、E

解説：
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources, OCM is mandatory to install on at least one database server and can be used to collect configuration information on demand. The collected information can then be uploaded either manually or automatically to Oracle.


質問 # 63
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 storage servers in both racks
  • B. on all database servers and at least two storage servers in both racks
  • C. on only one database server in both racks
  • D. on all database servers in the second rack
  • E. on all database servers in both racks and one storage server in each rack
  • F. on all database servers in the first rack
  • G. on at least two storage servers in both racks

正解：B、G

解説：
In order to monitor all components of this multirack configuration, Enterprise Manager agents must be deployed on at least two storage servers in both racks and all database servers in both racks. This is according to the Oracle Exadata Database Machine X9M Implementation Essentials official text book [1], in which it states "To monitor all components of the multirack configuration, you must deploy agents on all database servers and at least two storage servers in each rack" (page 6-15).


質問 # 64
You are concerned about the operating temperature of the database servers in your Exadata Full Rack and want to be alerted if the server exceeds 30C.
What command should use use to generate alerts for such an event?

  • A. dbmcli -e "create threshold ds_temp comparison='>', critical=30" on each database server
  • B. dbmcli -e "set alert ds_temp> 30" on each database server
  • C. dbmcli -e "alert metriccurrent ds_temp where metricValue > 30" on each database server
  • D. dbmcli -e "set threshold ds_temp comparison=' >', critical=30" on each database server

正解：D

解説：
The Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 5-54) recommends using the dbmcli command to set thresholds on metrics, such as temperature. To do this, you should use the following command:
dbmcli -e "set threshold ds_temp comparison=' >', critical=30" on each database server.
This will generate an alert if the temperature exceeds 30C.


質問 # 65
......


Oracle 1Z0-902試験では、Oracle Exadata Database Machine X8Mの実装に関連するさまざまなトピックをカバーしています。これらのトピックには、アーキテクチャ、ハードウェアコンポーネント、ソフトウェアコンポーネント、インストールと構成、バックアップと回復、監視とチューニングが含まれます。この試験に合格した候補者は、Oracle Exadata Database Machine X8Mとそのコンポーネントをインストール、構成、および管理する能力を実証します。

 

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