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Oracle Exadata Database Machine X8Mは、Oracle Exadata製品ファミリーの最新の追加です。前世代品に比べ、より高速なCPU、増加したメモリ、および高速ネットワークなど、いくつかの新しい機能と改善が提供されています。このマシンには、自動索引付け、機械学習、およびハイブリッド列圧縮などのソフトウェアの改善も含まれています。

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しかし、1z1-902「Oracle Exadata Database Machine X8M Implementation Essentials」試験は簡単ではありません。専門的な知識が必要で、もしあなたはまだこの方面の知識を欠かれば、CertJukenは君に向ける知識を提供いたします。CertJukenの専門家チームは彼らの知識や経験を利用してあなたの知識を広めることを助けています。そしてあなたに1z1-902試験に関するテスト問題と解答が分析して差し上げるうちにあなたのIT専門知識を固めています。

Oracle Exadata Database Machine X8Mは、Oracleデータベースワークロード専用に設計された設計されたシステムです。ミッションクリティカルなデータベースアプリケーションを実行するための高性能でスケーラブルで安全なプラットフォームを提供します。 Oracle Exadata Database Machine X8Mは、最新のハードウェアおよびソフトウェアテクノロジーを使用して構築されており、Oracleデータベースワークロード用に最適化されています。 1Z1-902試験に合格した専門家は、このシステムのアーキテクチャ、機能、機能を深く理解します。

Oracle Exadata Database Machine X8M Implementation Essentials 認定 1z1-902 試験問題 (Q11-Q16):

質問 # 11
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, but are not enabled by default.
B. Install Oracle Rest Data Services on each Storage server and install the MS APEX application.
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 # 12
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. 2, 8, 7, 3, and 6
B. 2, 7, 8, and 6
C. 4, 7, 8, 3, and 6
D. 1, 8, 7, 3 and 6
E. 5, 8, 7, and 6

正解：B

質問 # 13
How many 128GB Persistent Memory DIMMS are included in Exadata X9M-2 Extended (XT) Storage Servers?

A. 0
B. 1
C. 2
D. 3

正解：B

解説：
The Exadata X9M-2 Extended (XT) Storage Server does not include any Persistent Memory (PMEM) DIMMs. The XT server configuration primarily serves as a cost-effective archival storage option and lacks the performance features available in the HC (High Capacity) and EF (Extreme Flash) storage servers. This configuration does not include Persistent Memory, which is leveraged in other models for accelerating OLTP workloads and providing extremely low-latency data access.

質問 # 14
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 dcli command.
B. Copy the script to all storage servers using the dcli command and manually execute it on all storage servers using the EXACLI command.
C. Copy the script to all storage servers using the CELLCLI command and execute it on all storage servers in parallel using the CELLCLI command.
D. Copy the script to all storage servers using the dcli command and manually execute it on each storage server using the DCLI command.
E. Copy and execute the script on all storage servers using the EXACLI command.

正解：A

解説：
According to Oracle's documentation1, the Cell Control Command-Line Interface (CellCLI) utility is the command-line administration tool for Oracle Exadata System Software. It can be used to perform various tasks on Exadata Storage Servers, such as creating and managing objects, monitoring performance, and configuring alerts.
To run CELLCLI commands on multiple cells simultaneously, you can use the Distributed Command-Line Interface (dcli) utility2. The dcli utility allows you to execute commands or scripts on a group of cells or hosts in parallel. You can use the dcli utility to copy files from one cell or host to multiple cells or hosts using the -f option3. You can also use the dcli utility to execute commands or scripts on multiple cells or hosts using the -l option to specify a user name and the -g option to specify a file containing a list of cells or hosts3.
Therefore, to achieve your requirement of running a script with several CELLCLI commands on each cell in your Exadata full rack simultaneously, you must:
Copy and execute the script on all storage servers using the dcli command.

質問 # 15
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：B

質問 # 16
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