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Download Oracle Exadata Database Machine X8M Implementation Essentials Exam Dumps

NEW QUESTION 32
A new Exadata Quarter Rack with 2 Database Servers and 3 HC Storage Servers and 3-phase 15kVA 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 power cables from the servers to the PDUs can be rearranged inside the rack following OECA guidance to utilize a single PDU power cable.
• B. The installation can go ahead, no change is required.
• C. The installation cannot proceed until two power feeds are available per PDU.
• D. A splitter cable can be used to provide power to all PDU cables.

Answer: C

Explanation:
An Exadata Quarter Rack with 2 Database Servers and 3 HC Storage Servers and 3-phase 15kVA PDUs would typically require two power feeds per PDU, one for each of the two power distribution units (PDUs) in the rack. A single power feed per PDU is not sufficient to provide the necessary power to the servers and storage in the rack.
The installation cannot proceed until two power feeds are available per PDU. According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], it is recommended that each PDU should have at least two power feeds from different power sources in the data center. This is to ensure redundancy and avoid any power interruption due to power failure on one of the power sources. Splitter cables are not recommended, as they can reduce efficiency and increase the risk of overheating. Rearranging the power cables within the rack is not recommended either, as it does not provide the necessary redundancy for the PDU.

NEW QUESTION 33
Which are two correct statements about backing up Exadata Database Machine?

• A. For high availability, system area can be on the first two disks and M.2 devices.
• B. Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.
• C. Backing up Exadata Storage Server Software is critical for restoration.
• D. Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.
• E. The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually.

Answer: C,D

Explanation:
[1] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 4: Oracle Clusterware [2] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 8: Oracle Exadata Storage Server Software [3] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book [1][2], Chapter 9: Oracle Exadata Storage Server Infrastructure

NEW QUESTION 34
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. CellCLI alter GRIDDISK all inactive on the affected storage server
• B. CeLLCLI> alter cell shutdown SERVICES all on the affected storage server
• C. CeLLCLI> list GRIDDISK where status != 'inactive' on the affected storage server
• D. CellCLI LIST GRIDDISK ATTRIBUTES name WHERE asmdeactivationoutcome != 'Yes' on the affected Storage server
• E. 'crsct1 stop cluster -all' on one of the database servers
• F. shutdown -h now' on the affected storage server

Answer: F

Explanation:
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/dbmmn/maintaining-exadata-storage-servers.html#GUID-AE16A1DA-53C6-4E80-94E5-963AA65373AB

NEW QUESTION 35
Which two statements are true in regards to starting the Exadata Virtual Machine?

• A. Use vm_maker -auto-start command to configure a virtual machine to start automatically when the KVM host is started.
• B. To see Oracle Linux boot messages during guest startup, use -console option with the vm_maker -start-domain command.
• C. To streamline the diagnosis of virtual machines, one ISO file is used for multiple Oracle Exadata System Software releases.
• D. Use vm_maker boot-from-iso command to boot a virtual machine.
• E. Use vm_maker -start-domain to start a virtual machine manually.

Answer: A,D

NEW QUESTION 36
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 Database 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 Storage server and install the MS APEX application.

Answer: A

Explanation:
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).

NEW QUESTION 37
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