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Oracle Exadata Database Machine X8M is a high-performance, scalable, and secure database system that offers a complete solution for running mission-critical workloads. The system is designed to deliver exceptional performance and reliability while reducing the total cost of ownership. The Oracle Exadata Database Machine X8M is an ideal choice for organizations that require high availability, scalability, and security for their critical applications and databases.

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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q63-Q68):

NEW QUESTION # 63
Which three statements are true about the CELLCLI command?

A. It has command-line history.
B. It can be executed using the DCLI utility.
C. It requires root privileges to create CELLDISKS and GRIDDISKS.
D. It can execute commands on multiple storage servers in parallel.
E. It can be executed on storage servers.

Answer: A,B,D

Explanation:
The CELLCLI utility is a command line interface to Exadata that enables the execution of commands across multiple storage servers in parallel. It also has command-line history, so users can easily recall previously entered commands. Furthermore, the CELLCLI utility can be executed using the DCLI utility, which provides a convenient way to execute commands on multiple storage servers simultaneously.
However, CELLCLI does not require root privileges to create CELLDISKS and GRIDDISKS, and it cannot be executed on storage servers. This is because CELLCLI is used to manage the Exadata database machine from the database server [1]. For more information about CELLCLI, refer to the Oracle Exadata Database Machine X9M Implementation Essentials official text book and resources [1][2].

NEW QUESTION # 64
You have been asked by Oracle Support to check the firmware of the hard & flash disks in a storage server. Which cellcli command should you use to get this information?

A. list cell attributes name, deviceName, diskType, physicalFirmware
B. list devices attributes name, deviceName, diskType, physicalFirmware
C. list physicaldisk attributes name, deviceName, diskType, physicalFirmware
D. list celldisk attributes name, deviceName, diskType, physicalFirmware

Answer: C

Explanation:
This command will display the name, deviceName, diskType and physicalFirmware attributes of the physicaldisks in a storage server, as explained in the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book (page 85).
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-storage-server-cellcli.html

NEW QUESTION # 65
Which statement is true about the Persistent Memory Commit Accelerator?

A. Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).
B. Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.
C. Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.
D. Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.
E. Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

Answer: A

NEW QUESTION # 66
How is Exadata Secure RDMA Fabric isolation used in X9M-2 with virtualization enabled?

A. With Secure Fabric isolation, each Storage Server runs multiple KVM guests each dedicated to a Database VM cluster using a dedicated network partition and VLAN ID. This provides security and isolation between multiple tenants or VM clusters.
B. With Secure Fabric isolation, each Database VM Cluster uses a dedicated network partition and VLAN ID for Data Guard networking between the primary and disaster recovery Exadata racks. This improves security by isolating data guard traffic onto an encrypted network between data centers.
C. With Secure Fabric isolation, each Database VM cluster uses a dedicated network partition and VLAN ID for cluster networking between the database servers in the VM Cluster. This provides security and isolation between multiple tenants or VM clusters.
D. With Secure Fabric isolation, each Database VM Guest uses a dedicated network partition and VLAN ID for client networking between application servers. This improves security by preventing man in the middle attacks.

Answer: C

Explanation:
Exadata Secure RDMA Fabric isolation is a feature that allows you to use virtualization on the X9M-2 platform while maintaining security and isolation between multiple tenants or VM clusters. Secure Fabric isolation works by creating a dedicated network partition and VLAN ID for each Database VM cluster, which is used for cluster networking between the database servers in the VM Cluster. This ensures that the network traffic of each VM cluster is isolated from the others, and it prevents unauthorized access to the data or resources of other VM clusters. Secure Fabric isolation can also be used for other purposes such as client networking, Data Guard traffic, but it's mainly used to provide security and isolation between multiple tenants or VM clusters.

NEW QUESTION # 67
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?

A. RoCE network interface cards in the storage servers
B. power supplies in the database servers
C. RoCE network interface cards in the database servers
D. fans in the storage servers
E. power distribution units
F. Cisco management switch
G. Cisco RDMA over Converged Ethernet (RoCE) switches

Answer: A,B,D,E

NEW QUESTION # 68
......

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