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Oracle Exadata Database Machine X8Mは、ミッションクリティカルなワークロード用に設計された高性能でスケーラブルで安全なデータベースシステムです。ハードウェアとソフトウェアコンポーネントを組み合わせて、データベースの統合、データウェアハウジング、オンライントランザクション処理（OLTP）ワークロードの完全なソリューションを提供します。このシステムには、Infiniband Networking、Flash Storage、Database Offloadingなどの高度なテクノロジーを備えており、比類のないパフォーマンス、可用性、スケーラビリティを実現しています。 Oracle 1Z1-902試験は、この強力なデータベースマシンの実装と管理に関する専門知識を実証したいITプロフェッショナルにとって不可欠な認証です。

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1z1-902実際試験 & 1z1-902受験料

成功への道を示す指標として、当社の1z1-902実践教材は、あなたの旅のあらゆる困難を乗り越えるために役立ちます。すべての課題をウォークインのように扱うことはできませんが、1z1-902シミュレーションの実践により、レビューを効果的にすることができます。それが、当社の1z1-902調査問題がプロのモデルである理由です。 98％以上の高い合格率を誇る1z1-902試験問題により、数千万人の受験者が試験に合格しました。

Oracle Exadataは、Oracle Databaseを実行するために設計された高性能なエンジニアリングシステムです。ハードウェアとソフトウェアのユニークな組み合わせを提供し、Oracle Databaseのワークロードに最適化されています。Oracle Exadata Database Machine X8Mは、性能、拡張性、信頼性を向上させたこのエンジニアリングシステムの最新バージョンです。Exadata X8Mを実装するには、Oracleは1Z0-902試験を提供しており、これは候補者のExadata X8M実装に関する知識とスキルを検証するものです。

Oracle Exadata Database Machine X8M Implementation Essentials 認定 1z1-902 試験問題 (Q57-Q62):

質問 # 57
Examine these commands:
1. Execute "crscti stop cluster -all" as the grid user from one database server.
2. Execute "crscti stop cluster -all" as root from one database server.
3. Power off all network switches.
4. Execute "crscti stop cluster" as root from one database server.
5. Execute "crscti stop cluster" as the grid user from one database server.
6. Power off the rack using the power switches on the PDUs.
7. Execute "shutdown -h now" on all database servers.
8. Execute "shutdown -h now" on all Exadata storage servers.
Which is the correct order or the required commands to completely power off an Exadata Database Machine in an orderly fashion?

A. 5, 8, 7, and 6
B. 2, 8, 7, 3, and 6
C. 2, 7, 8, and 6
D. 4, 7, 8, 3, and 6
E. 1, 8, 7, 3 and 6

正解：A

解説：
Option 5 stops the clusterware on all database servers as the grid user3.
Option 8 shuts down all Exadata storage servers using their ILOM interfaces1.
Option 7 shuts down all database servers using their ILOM interfaces1.
Option 6 powers off the rack using the power switches on the PDUs2.

質問 # 58
Which two statements are true for the Oracle Exadata Configuration Assistant (OECA)?

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

正解：C、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.
Reference 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 # 59
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 and execute the script on all storage servers using the EXACLI 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 the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.
D. Copy and execute the script on all storage servers using the dcli command.
E. Copy the script to all storage servers using the dcli command and manually execute it on all storage servers using the EXACLI command.

正解：D

質問 # 60
You want to monitor how a large production table is accessed. Especially, you are interested to see how the access on that particular table leverages the benefits of the Exadata Platform.
Which two actions are NOT appropriate for that purpose?

A. You run the CellCli-command list activerequest , filtering for the attributes ioReason and objectNumber, that you specify as 'Smart Scan' and the Object ID of your table from DBA_OBJECTS.
B. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table.
C. You query v$segment_statistics and filter for the Object ID of your table from dba_objects and the the column STATISTIC_NAME='optimized physical reads'.
D. YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table.

正解：B、D

解説：
A . YOU query VSSYSTEM_EVENTS and filter for the event 'cell physical IO interconnect bytes returned by smart scan', associated to your table. This does not show how much data was filtered by Smart Scan, but only how much data was returned after Smart Scan12.
. You query v$SYSTAT and filter for the statistic 'cell smart table scan', associated to your table. This does not show how much data was filtered by Smart Scan for a specific table, but only for all tables in a session12.
https://www.databasejournal.com/oracle/monitoring-smart-scans-in-oracle-exadata/

質問 # 61
Which three statements are true about the Grid Infrastructure configuration after a nonvirtual deployment of a new Exadata Database Machine with a single cluster?

A. The ora. diskmon clusterware resource is enabled and online.
B. Grid Naming Service (GNS) is not configured.
C. Three Single Client Access Name (SCAN) listeners are configured on the RDMA over Converged Ethernet (RoCE) network.
D. Three Single Client Access Name (SCAN) listeners are configured on the client access network.
E. Grid Infrastructure uses the management network as the cluster interconnect.
F. The OCR is multiplexed in the DATA_<DBM__NAMe> and RECo_<dbm_name> diskgroups.

正解：A、C、F

解説：
For a non-virtual deployment of Oracle Exadata with a single cluster:
Single Client Access Name (SCAN) Listeners: By default, three SCAN listeners are configured on the RDMA over Converged Ethernet (RoCE) network. This setup allows for load balancing and high availability of incoming client connections across the cluster nodes.
Oracle Cluster Registry (OCR) Multiplexing: The OCR is typically stored in multiple locations within the disk groups to enhance reliability and fault tolerance. On Exadata, the OCR is multiplexed across the DATA and RECO disk groups for enhanced resilience.
ora.diskmon Resource: This is an essential component of Oracle Clusterware, responsible for monitoring and managing disk-related cluster resources. It is always enabled and kept online by Oracle Clusterware on Exadata systems.

質問 # 62
......

1z1-902実際試験: https://www.mogiexam.com/1z1-902-exam.html

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速読学習Oracle 1z1-902試験に合格するための学習ソフト

1z1-902実際試験 & 1z1-902受験料

Oracle Exadata Database Machine X8M Implementation Essentials 認定 1z1-902 試験問題 (Q57-Q62):

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