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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q12-Q17):
NEW QUESTION # 12
You use Enterprise Manager to monitor all the components of your Exadata Database Machine.
Recently, you discovered that certain asmdisks were offline in one of the diskgroups used by the rac database called prod.
In which two sources would you find diagnostic messages related to this problem?
- A. Enterprise Manager Alerts on the Exadata Storage Server Grid home page
- B. alert logs for the prod database instances
- C. Enterprise Manager Alerts on the ILOM home page for cell connectivity problems for the prod database instances
- D. alert logs for Enterprise Manager
- E. alert logs for the ASM instances
Answer: A,C
NEW QUESTION # 13
You have been tasked with replacing a memory module of an Exadata Storage Server and need to power off the affected storage server. Which two commands must you execute to safely power off the storage server in an Exadata X9M Database Machine?
- A. shutdown -h now' on the affected storage server
- B. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
- C. CellCLI alter GRIDDISK all inactive on the affected storage server
- D. 'crsct1 stop cluster -all' on one of the database servers
- E. CellCLI LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server
- F. CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server
Answer: A,C
Explanation:
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmmn/maintaining-exadata-storage-servers.html#GUID-AE16A1DA-53C6-4E80-94E5-963AA65373AB The two commands that must be executed to safely power off the storage server in an Exadata X9M Database Machine are E and F.
Command E, CellCLI alter GRIDDISK all inactive, will deactivate all of the GRIDDISKS on the affected storage server. This will ensure that no data is lost during the power-off process.
Command F, shutdown -h now, will shut down the storage server. This will ensure that the storage server is completely powered off and no data is lost.
For more information on how to properly power off an Exadata Storage Server, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].
https://support.oracle.com/knowledge/Oracle%20Database%20Products/1188080_1.html
NEW QUESTION # 14
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?
- A. Cisco management switch
- B. power supplies in the database servers
- C. RoCE network interface cards in the database servers
- D. RoCE network interface cards in the storage servers
- E. Cisco RDMA over Converged Ethernet (RoCE) switches
- F. power distribution units
- G. fans in the storage servers
Answer: B,D,F,G
NEW QUESTION # 15
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 all storage servers using the EXACLI command.
- B. Copy and execute the script on all storage servers using the EXACLI 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 CELLCLI command and execute it on all storage servers in parallel using the CELLCLI command.
Answer: D
Explanation:
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.
NEW QUESTION # 16
What is the maximum DRAM capacity you can expand an X9M-2 DB Server?
- A. 2048GB
- B. 1024GB
- C. 768GB
- D. 512GB
- E. 384GB
- F. 1536GB
Answer: B
Explanation:
According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book, the maximum DRAM capacity you can expand an X9M-2 DB Server is 1024GB. This is the maximum amount of DRAM that can be installed in the server. The specific steps for adding DRAM are outlined in the book and can be referenced here: https://docs.oracle.com/cd/E80920_01/E80920/html/x9m_hardware_memory.html.
NEW QUESTION # 17
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