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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q19-Q24):
NEW QUESTION # 19
For which four component failures on an X9M Database Machine does Auto Service Request (ASR) raise service requests?
- A. power distribution units
- B. Cisco RDMA over Converged Ethernet (RoCE) switches
- C. RoCE network interface cards in the database servers
- D. fans in the storage servers
- E. Cisco management switch
- F. RoCE network interface cards in the storage servers
- G. power supplies in the database servers
Auto Service Request (ASR) will raise service requests for component failures in RoCE network interface cards in the storage servers, fans in the storage servers, power distribution units, and power supplies in the database servers. This is according to the Oracle Exadata Database Machine X9M Implementation Essentials official text book , which states "ASR will raise service requests for component failures in RoCE network interface cards in the storage servers , fans in the storage servers, power distribution units, and power supplies in the database servers" (page 5-11).
NEW QUESTION # 20
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 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. The installation can go ahead, no change is required.
- D. A splitter cable can be used to provide power to all PDU cables.
According to the Oracle Exadata Database Machine X9M-2 Data Sheet1, each PDU has two power input cables that can be connected to separate power sources for redundancy. However, if only one power source is available per PDU, then a single cable can be used to provide sufficient power for normal operation.
NEW QUESTION # 21
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?
- A. OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.
- B. OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.
- C. OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.
- D. There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.
1. OEDA deployment steps include calibrate cells, create cell disks, and resecure machine2.
2. OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA2.
NEW QUESTION # 22
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 cluster networking between the database servers in the VM Cluster. This provides security and isolation between multiple tenants or VM clusters.
- C. 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.
- D. 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.
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 # 23
Your customer needs to ensure that their data is available on the Exadata machine during updates. The customer wants to be able to update one server at a time but still be protected against single-node server failure.
What ASM redundancy level should they use?
- A. External
- B. Normal
- C. Sparse
- D. High
- E. Extended
https://www.oracle.com/technetwork/database/exadata/maa-exadata-asm-cloud-3656632.pdf According to the Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book, the customer should use the High redundancy level for their ASM storage in order to ensure that their data is available on the Exadata machine during updates. The High redundancy level provides the most protection against single-node server failure, as it stores three copies of each data file on separate nodes. This is the same redundancy level used for the Oracle Database's Control Files and Redo Logs. Instructions for configuring the ASM redundancy level can be found in the book and can be referenced here: https://docs.oracle.com/cd/E80920_01/E80920/html/x9m_asm_overview.html.
NEW QUESTION # 24
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