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Oracle Exadata Database Machine X8M Implementation Essentials Sample Questions (Q60-Q65):

NEW QUESTION # 60
Which two statements are true about the initial storage configuration after the standard (non-virtualized) deployment of a new Exadata Database Machine with High Capacity storage servers?

• A. There is free space available on the hard disks inside the database servers for possible extension of the /uoi file system.
• B. The sparse<DBMNAME> diskgroup is created automatically.
• C. There is free space available on flashdisks inside the Exadata storage servers for possible use for storage indexes.
• D. The DATA<DBMName> and RECO<DBMNAME> ASM diskgroups are built on with DATA on the outer-most tracks and RECO on the inner-most tracks of the physical disk.
• E. There is free space available on flashdisks inside the Exadata storage servers to configure Exadata Smart Flash Logs.

Answer: D,E
NEW QUESTION # 61
Which are two correct statements for managing virtual deployment using Oracle Exadata Deployment Assistant (OEDA)?

• A. There is no limit on the number of VMs in an Exadata rack as long as the Exadata rack has adequate resources.
• B. OEDA allows customers to have both bare metal (BM) and virtual machine (VM) in an Exadata X9M Quarter Rack.
• C. OEDA sets up key-based authentication for the root user by using the setuprootssh.sh utility included with OEDA.
• D. OEDA deployment steps include calibrate cells, create cell disks, and resecure machine.

Answer: B,D
NEW QUESTION # 62
You have been notified by your Network Administrator that an upstream switch has been replaced due to a hardware fault. Which command verifies that the client network on your Exadata X9M-2 Database Server is available via both client switches?

• A. cat /proc/net/bonding/bondeth0
• B. /opt/oracle.SupportTools/ibdiagtools/checkbadlinks.p1 -all
• C. ifconfig -a legrep "re0| re1"
• D. netstat -rn

Answer: B Explanation:
The checkbadlinks.pl script is a tool provided with the Exadata X9M-2 Database Server that allows you to verify the status of the InfiniBand links between the Database Server and the client switches. This script checks for bad links, and it can be used to identify any issues with the client network connectivity. To use the script, you can navigate to the directory where it is located, which is /opt/oracle.SupportTools/ibdiagtools/ and execute the command ./checkbadlinks.pl -all. This will give you a summary of the status of the links and it will indicate if there are any bad links. This command will check the client network on your Exadata X9M-2 Database Server is available via both client switches. Other commands like ifconfig, netstat and cat are not relevant to check the client network on Exadata X9M-2 Database Server
NEW QUESTION # 63
Which two statements are false about backup to ZFS Storage Appliance (ZFSSA)?

• A. Top of Rack (ToR) switches are managed as part of the hardware stack and software levels are upgraded during the patching process.
• B. ZFSSA may connect directly to the Exadata 100Gb RoCE network switches.
• C. ZFS Snapshots can provide rapid cloning of development and test environment.
• D. When backing up multi-rack systems, sharing Exadata X9M switches is recommended.

Answer: B,D Explanation:
1. ZFS Storage Appliance (ZFSSA) can't connect directly to the Exadata 100Gb RoCE network switches. ZFSSA uses Fibre Channel protocol to connect to the Exadata storage cells. C. When backing up multi-rack systems, sharing Exadata X9M switches is not recommended. Each rack should have its own switches to minimize the risk of data loss due to switch failure.
Review the safety guidelines.
Unpack Oracle Exadata Rack.
Let the Exadata acclimatize for 24 hours.
Place Exadata in its allocated space.
Stabilize the Exadata Rack.
Power on Exadata PDU A.
Power on Exadata PDU B.
This order ensures that the necessary safety precautions are taken before installing the Exadata Database Machine, and that the machine is allowed to acclimate to its new environment before being powered on.
NEW QUESTION # 64
Which two quarantine types can disable Smart Scan for multiple databases that offload SQL statements to a cell on an Exadata Database Machine?

• A. Cell Offload Quarantine
• B. Disk Region Quarantine
• C. Manually created Quarantine
• D. SQL Plan Quarantine
• E. Database Quarantine

Answer: A,D Explanation:
A and E are the two correct quarantine types that can disable Smart Scan for multiple databases that offload SQL statements to a cell on an Exadata Database Machine. A is correct because SQL Plan Quarantine will disable Smart Scan for all queries related to the SQL plan that was placed in the SQL Plan Quarantine [1]. E is correct because the Cell Offload Quarantine will disable Smart Scan for all queries offloaded to Oracle Database Exadata Storage Server Software [2]. The other statements (B, C, and D) are incorrect.
[1] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book , Chapter 13 [1][2]: Oracle Database Exadata Storage Server Software [2] Oracle Exadata Database Machine X9M Implementation Essentials Official Text Book , Chapter 15 [1][2]: Oracle Database Exadata Storage Server Configuration
https://docs.oracle.com/en/engineered-systems/exadata-database-machine/sagug/exadata-storage-server-software-introduction.html
NEW QUESTION # 65
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