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| Section | Objectives |
|---|---|
| Topic 1: Database Provisioning and Lifecycle Operations | - Provisioning databases using automation workflows - Cloning, refreshing, and retiring databases |
| Topic 2: Data Protection and Security | - Access control and security configuration - Backup and restore strategies |
| Topic 3: Automation and Operations | - Scaling and performance management - Automation policies and templates |
| Topic 4: Monitoring and Troubleshooting | - Monitoring database health and performance - Troubleshooting common database issues in NDB |
| Topic 5: Nutanix Database Automation Concepts | - Nutanix Database Service (NDB) architecture and components - Database lifecycle management overview |
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問題 #88
A database administrator wants to clone an SQL database that has Transparent Data Encryption (TDE) enabled.
Which two steps must be taken on the target server for this clone to be successful? (Choose two.)
答案：C,D
解題說明：
When cloning an SQL database with Transparent Data Encryption (TDE) enabled in NDB, the target server must handle the encryption keys to ensure the cloned database remains functional and secure. TDE uses a keystore (e.g., a bundle file containing the master key and certificate) to encrypt data. Two steps are required:
(1) The administrator must back up the keystore bundle file from the source database server VM and transfer it to the target server, ensuring the clone can decrypt the data. (2) After the clone is created, the administrator must run the post-clone command script, which configures the TDE keys on the target server, completes the encryption setup, and activates the cloned database.
* Option A (Backup the .cer and .pvk files from the source database server VM) is incorrect because TDE in SQL Server typically uses a keystore bundle, not separate .cer and .pvk files.
* Option B (Backup the keystore bundle file from the source database server VM) is correct as it ensures the encryption keys are available on the target.
* Option C (Run the pre-clone command script) is incorrect because pre-clone scripts are for preparation, not TDE-specific post-clone setup.
* Option D (Run the post-clone command script) is correct as it finalizes the TDE configuration on the target server.
These steps ensure a successful TDE-enabled clone.
References
* Nutanix Database Service (NDB) User Guide, Chapter 5: Configuring Time Machines, Section:
Cloning TDE-Enabled Databases
* Nutanix Support & Insights, Knowledge Base Article: "Cloning SQL Server with TDE in NDB"
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 5: Protect Databases Using Time Machine
問題 #89
A clone needs to be created on an existing database server, but there are no Authorized database servers defined to support the cloned database.
In which two ways can Database Server VMs be authorized during a Clone Create operation? (Choose two.)
答案：B,C
解題說明：
When creating a clone on an existing database server but no Authorized database servers are defined to support the cloned database, the administrator must authorize the necessary Database Server VMs. Two valid methods exist within NDB: (1) Using the Time Machine interface, the administrator can navigate to the Actions menu and select "Authorize Database Server VMs" to designate specific VMs for clone support, providing a proactive authorization step. (2) During the Clone creation process, the wizard includes an option (e.g., a plus icon) to authorize one or more database server VMs on the fly, streamlining the process if authorization is needed mid-operation.
* Option A (Within Time Machine, use the Actions menu and Authorize Database Server VMs to identify which database server VMs to authorize for clones) is correct as it is a dedicated authorization method in Time Machine.
* Option B (Within the Database Server VM Summary window, update the database server to be authorized for supporting cloned databases) is incorrect because the Summary window is for viewing, not authorizing, clone support.
* Option C (During the Clone creation process, click the plus icon to authorize one or more database server VMs) is correct as it allows real-time authorization during cloning.
* Option D (During the database server provisioning process, flag the database server to be authorized for supporting cloned databases) is incorrect because authorization is not typically set during initial provisioning but rather during clone operations.
These methods ensure the clone can be created on authorized servers.
References
* Nutanix Database Service (NDB) User Guide, Chapter 5: Configuring Time Machines, Section:
Authorizing Database Servers for Clones
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 5: Protect Databases Using Time Machine
問題 #90
Refer to the exhibit.
An administrator is receiving critical NDB email alerts regarding storage for the DBA database, which is a member of a database group.
How would the administrator remediate the issue within NDB?
答案：B
解題說明：
The administrator can remediate the issue of critical storage alerts by scaling up the storage directly from the Database Summary page for that specific DBA database. This action allows for an increase in storage capacity to alleviate space constraints and prevent future critical alerts related to storage space1. The other options are not correct, as they either involve scaling the entire database group, which may not be necessary or desired, or require additional steps outside of NDB, which may not be feasible or efficient. References:
* 1: Nutanix Database Automation (NCP-DB) course, Module 2: Database Provisioning, Lesson 2.4:
Database Scaling, slide 5
問題 #91
When an Oracle database is upgraded using Era, what is the type of upgrade category?
答案：A
解題說明：
When an Oracle database is upgraded using Era, the type of upgrade category is an "In-place upgrade". This method involves upgrading the database software within the same Oracle home as the existing database. The AutoUpgrade utility is used to automate the upgrade process, both before starting upgrades, during upgrade deployments, and during post-upgrade checks and configuration migration1. This method is preferred due to its simplicity and efficiency1.
問題 #92
An administrator needs to roll back an Oracle patch on a database server VM using NDB. What is required for this action to be successful?
答案：D
解題說明：
To roll back an Oracle patch on a database server VM using NDB, the patch must have been applied using NDB in the first place. This is because NDB maintains a patch inventory and history for each database server VM and database that it manages. NDB uses this information to determine which patches can be rolled back and how to revert the changes made by the patch. If the patch was applied outside of NDB, NDB would not have the patch information and would not be able to roll back the patch. Therefore, the patch must have been applied using NDB for the rollback action to be successful. The other options are not required for the rollback action. The database does not need to be shut down or in read-only mode, as NDB can perform the rollback operation online. The patch does not need to be applied on Grid home only, as NDB can roll back patches applied on both Grid home and Database home. References:
* Nutanix Certified Professional - Database Automation (NCP-DB) v6.5, Section 4 - Operate and Maintain an NDB Environment, Objective 4.4: Determine the correct method to apply Linux OS patches
* Nutanix Database Management & Automation (NDMA) Course, Module 5: Nutanix Database Service (NDB) Patching, Lesson 5.1: Patching Overview, Topic: Patching Concepts
* [Nutanix Database Service (NDB) User Guide], Chapter 7: Patching, Section: Rolling Back a Patch
問題 #93
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