1Z0-902日本語講座 & 1Z0-902試験対策

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Oracle 1Z0-902認定試験は、Oracle Exadata Database Machine X8Mを扱うプロフェッショナルにとって貴重な資格です。この強力なデータベースアプライアンスの実装、構成、および管理の専門知識を証明します。この認定を取得することで、新しいキャリアの機会を開拓し、データベース管理の分野でのプロフェッショナルな信頼性を高めることができます。

Oracle Exadata Database Machine X8Mは、Oracleデータベースを実行するための強力で高性能なプラットフォームです。従来のデータベースシステムよりも高速な処理、低遅延、および改善されたスケーラビリティを提供するように設計されています。そのため、ミッションクリティカルなアプリケーションに高性能なデータベースが必要な組織にとっては、人気のある選択肢です。

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Oracle Exadata Database Machine X8M Implementation Essentials 認定 1Z0-902 試験問題 (Q32-Q37):

質問 # 32
Which two statements are true about the initial storage configuration after the standard (non-virtualized) deployment of a new Exadata Database Machine with High Capacity storage servers?

A. The DATA_<DBM_Name> and RECO_<DBM_NAME> ASM diskgroups are built on with DATA on the outer-most tracks and RECO on the inner-most tracks of the physical disk.
B. There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes.
C. The sparse_<DBM_NAME> diskgroup is created automatically.
D. There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.
E. There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.

正解：D、E

質問 # 33
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. 0
B. 10, 8, 2, 5
C. 4,1, 6, 9
D. 7,6,9,11
E. 10, 8, 9, 11

正解：E

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.

質問 # 34
An Exadata X9M-2 Elastic Rack with 4 Database Servers and 8 HC Storage Servers and 3-phase 24kVA PDUs is being installed in a Data Center. However, the Data Center is only providing enough power for a single cable from each PDU. Which statement is correct?

A. The installation cannot proceed until two power feeds are available per PDU.
B. The power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.
C. A splitter cable can be used to provide power to all PDU cables.
D. The installation can go ahead, no change is required.

正解：A

解説：
In order for an Exadata X9M-2 Elastic Rack to be installed, two power feeds are required for each of the three-phase 24kVA PDUs. A single cable from each PDU will not be enough to power the rack, and neither a splitter cable nor rearrangement of the power cables from the servers to the PDUs will be able to provide sufficient power for the system. Therefore, the installation cannot proceed until two power feeds are available per PDU.
For more information about power requirements for Exadata X9M-2 Elastic Racks, 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] Exadata Database Machine X8M-2 Mid-Size Rack Installation - Oracle Docs

質問 # 35
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?

A. OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.
B. OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.
C. There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.
D. OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.

正解：A、D

質問 # 36
What are two recommended configuration best practices for backup and recovery on Exadata?

A. 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.
B. 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.
C. Even if the backup was limited to writing to four tape drives, eight channels could be specified to expedite the restore process.
D. 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.

正解：C、D

質問 # 37
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