1z0-902 Practice Exam Questions with Answers Oracle Exadata Database Machine X9M Implementation Essentials Certification

The statements that are true about the CellCLI command are:

• It has command-line history . According to 1, you can use the up and down arrow keys to scroll through previous commands that you entered in CellCLI . You can also use Ctrl+R to search for a previous command by entering part of it .
• It can be executed on storage servers . According to 1, you can invoke CellCLI by logging in to the Exadata cell as cellmonitor , celladmin , or root user and typing “cellcli” . Within CellCLI , you can perform various management and monitoring tasks for the cell134.
• It can be executed using the DCLI utility . According to 5, DCLI (distributed CLI) is another utility that can be used to execute scripts and commands across multiple storagecells from a single interface. You can use DCLI to run CellCLI commands on multiple cells at once54.

To enable REST access to the MS process, you need to manually enable the REST services on each storage server by running the command cellcli -e "ALTER CELL ENABLE REST" and then configure authentication and authorization to ensure secure access. This is described in detail in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (Chapter 8, Securing the Exadata Database Machine).

https://docs.oracle.com/en/cloud/paas/exadata-cloud/csexa/access-rest-api.html

According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book and Resources, you can find diagnostic messages related to this problem in the alert logs for the ASM instances and the alert logs for the prod database instances. The alert logs for the ASM instances will provide information related to the offline asm disks, while the alert logs for the prod database instances will provide information related to whether the prod database instances are connected to the ASM instance or not.

https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-administering-asm.html

• 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.