2025年03月 Nutanix NCP-DB-6.5実際の問題とブレーン問題集
NCP-DB-6.5合格させる問題集でNutanix24時間で試験合格できます
質問 # 50
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?
- A. The database must be shut down.
- B. The patch must have been applied on Grid home only using NDB.
- C. The patch must have been applied using NDB.
- D. The database must be in read-only mode.
正解：B
質問 # 51
Which action should be completed before updating Oracle Database software?
- A. Perform rolling reboots of the Oracle Database VMs.
- B. Download the PSU from Oracle support.
- C. Verify the Oracle OS version is supported on AHV.
- D. Verify CVMs have the required memory allocated.
正解：B
解説：
Before updating Oracle Database software, you need to download the Patch Set Update (PSU) from Oracle support. A PSU is a collection of critical and security patches for Oracle products. You need to have a valid Oracle account and access to the My Oracle Support portal to download the PSU. You also need to check the compatibility and prerequisites of the PSU before applying it to your Oracle Database software. NDB uses out-of-place patching for Oracle, which means you need to create a new software profile version with the patched Oracle software and use it to update your existing databases.
Reference: Patch Oracle Database Software, Nutanix Support & Insights Nutanix Certified Professional - Database Automation (NCP-DB), Section 4 - Operate and Maintain an NDB Environment Nutanix Database Management & Automation (NDMA) course, Module 4, Lesson 4.4 - Patching Databases
質問 # 52
How can Era be config90ured to send alert notifications to email recipients?
- A. From Administration, select Ere Service then go to configure notification widget and then click update to update SMTP server configuration
- B. From Administration, select access control then add a user end setup email notification.
- C. From Administration select Era Service then go to Era service name and setup email notification,
- D. From Administration select access control, select SMTP and then click update to update SMTP sewer configuration.
正解：A
解説：
According to the Nutanix Database Automation (NCP-DB) learning documents, to configure Era to send alert notifications to email recipients, you need to go to the Administration section, select Era Service, then go to the configure notification widget. From there, you can update the SMTP server configuration1.
This allows Era to use the SMTP server to send alert notifications to the specified email recipients1.
質問 # 53
An administrator is adding a stretched VLAN in NDB.
Which VLAN type(s) will satisfy this task?
- A. Only dynamic VLANs
- B. Only VLANs that are not managed in NDB
- C. Only static VLANs that are managed in NDB
- D. Both static and dynamic VLANs
正解：D
質問 # 54
Which two statements best describe the features and functionality of Era Oracle patching? (Choose two.)
- A. Era patching for Oracle databases has automatic rollback if any of the steps in the patching workflow fails.
- B. Era Oracle fleet patching can be rolled back if issues ere encountered after successful patching.
- C. Era patching can be automated using REST API/CLI for scheduled patching many Oracle servers in a fleet patching scenario,
- D. Era does not require native Oracle Utility OpatchAuto to create the patch profile,
正解：A、C
解説：
Nutanix Era provides a unified database operating model that delivers simplicity, performance, availability, and security across private and public clouds1. It standardizes your Oracle database ecosystem by mass patching the databases with one-click simplicity2. This includes the following features:
Automated Patching: Era patching can be automated using REST API/CLI for scheduled patching many Oracle servers in a fleet patching scenario1. This allows for the standardization of your Oracle database ecosystem by mass patching the databases with one-click simplicity2.
Automatic Rollback: Era patching for Oracle databases has automatic rollback if any of the steps in the patching workflow fails1. This ensures that your databases remain secure and functional even if an issue arises during the patching process1.
質問 # 55
An administrator needs to restore a source database from a snapshot. The database shares the source volume with multiple other databases.
How does NDB handle this database restore operation?
- A. Replaces source volume with specific db disks
- B. Replaces the source volume with the snapshot volume
- C. Copies all database files to the source volume
- D. Copies the specific database files to the source volume
正解：D
質問 # 56
Which Time Machine feature allows developers to automate the data refresh for their clones?
- A. Log Catchup
- B. Schedule
- C. update
- D. Manual Backup
正解：B
解説：
According to the Nutanix Database Automation (NCP-DB) learning documents, the Schedule feature of the Time Machine allows developers to automate the data refresh for their clones1. This feature eliminates the time-consuming, complex process of database clone/refresh, allowing admins to create database clones/refresh to any point in time in just a few minutes1. Please refer to the official Nutanix documentation and training materials for more detailed information2.
質問 # 57
An administrator was asked to change the snapshot schedule for a given database. The administrator discovered that the time machine is in a paused state.
How should the administrator change the schedule?
- A. Clone the Time Machine and define an appropriate schedule for the clone.
- B. Select the Time Machine; under Action select Update end define an appropriate schedule.
- C. Select Time Machine: Under actions Resume the Time Machine and then Update to define an appropriate schedule.
- D. Clone the database and define an appropriate schedule for the clone.
正解：B
解説：
According to the Nutanix Database Automation (NCP-DB) learning documents, an administrator can change the snapshot schedule for a given database by selecting the Time Machine, then under Action, select Update and define an appropriate schedule1. This is because the Time Machine in Nutanix Era allows you to specify the number of backups or snapshots the time machine should take, the time of day it takes those snapshots, and the day of the week it takes weekly or monthly backups1. These options help you build a complete schedule of time machine capture operations1. Even if the Time Machine is in a paused state, the administrator can still update the schedule1. Cloning the Time Machine or the database is not necessary for changing the snapshot schedule1.
質問 # 58
Refer to the exhibit.
An administrator attempts to provision their first clustered database environment with NDB. The operation fails with the Operation Error shown in the exhibit.
Which database engine was being deployed during this operation?
- A. Microsoft SQL
- B. Oracle
- C. MySQL
- D. PostgreSQL
正解：C
解説：
The error message in the exhibit indicates that the operation failed during the "Create and Register Database Server VMs" step because "Provisioning of all the observers simultaneously took more than two hours." This type of error is associated with MySQL, as it involves observers which are a part of MySQL Group Replication, used for ensuring high availability1. The other options are not related to the error message, as they do not use observers or Group Replication for clustering.
Reference: 1: Nutanix Database Automation (NCP-DB) course, Module 5: Database High Availability, Lesson 5.2: MySQL Group Replication, slide 7
質問 # 59
How would an administrator enter the NDB command line to change the static IP address on the NDB VM?
- A. era
- B. era-server
- C. arithmos cli
- D. cerebro_cli
正解：B
質問 # 60
An administrator needs to patch a PostgreSQL database server VM from version 13.4 to 13.8.
What is the first step within the NDB patching workflow to accomplish this task?
- A. Create a new Database Parameters profile for PostgreSQL server 13.8.
- B. Create a maintenance window and add this PostgreSQL server 13.8 to the queue.
- C. Create a new Software Profile with PostgreSQL 13.8.
- D. Create a Software Profile Version with PostgreSQL 13.8.
正解：D
解説：
NDB supports patching for PostgreSQL database instances. Patching for PostgreSQL is validated on VMs provisioned by NDB (greenfield deployments). To patch PostgreSQL database server VMs, you must create a software profile version by uploading the PostgreSQL update file in NDB. You can then use the PostgreSQL update to patch other database server VMs or provision a new database server VM with the updated software profile. The first step in the NDB patching workflow is to create a software profile version with the desired PostgreSQL version.
Reference: Nutanix Database Automation (NCP-DB) Course Details, Section 4.1: NDB Patching Overview Nutanix Database Automation (NCP-DB) Certification Details, Objective 4.1: Perform Database Patching Nutanix Database Automation (NCP-DB) YouTube Playlist, Video 4.1: NDB Patching Overview Nutanix Database Automation (NCP-DB) User Guide, Section 4.4: Patch PostgreSQL Database Software
質問 # 61
How should an administrator modify the Alert Severity level within Era?
- A. From the dropdown menu choose Alerts Policies. Choose the Policy to be modified and set the desired severity level.
- B. From the dropdown menu choose Alerts Policies. Chose the Poliq to be modified and chose either Set Enabled or Set Disabled,
- C. From the dropdown menu choose Alerts > Policies. Then choose Update next to Alert Retention,
- D. From the dropdown menu choose Alerts > List. Select the message to be changed end choose Set Status to Resolved or Set Status to Acknowledged.
正解：A
解説：
In Nutanix Era, an administrator can modify the Alert Severity level by navigating to the Alerts Policies from the dropdown menu. Once there, they can select the Policy that needs to be modified and set the desired severity level1. This allows the administrator to customize the alerts according to their requirements, ensuring that they are notified of the most critical events in their environment21.
質問 # 62
What is the first step to install NDB on a Nutanix AHV cluster?
- A. Download the QCOW2 image file of NDB and upload it to Prism Element.
- B. NDB is offered as a SaaS service and doesn't require any installations.
- C. Open Prism Central and enable the NDB VM in the settings menu.
- D. Run LCM update to get the latest version of NDB.
正解：A
解説：
To install NDB on a Nutanix AHV cluster, you need to download the QCOW2 image file of NDB from the Nutanix Support Portal and upload it to Prism Element. This image file contains the NDB software and the CentOS operating system. After uploading the image, you need to create a VM from the image and configure the network settings. Then, you need to register the NDB VM with Prism Central and enable the NDB service in the settings menu.
Reference: Nutanix Support & Insights, Professional Services: NDB Database Cloning
質問 # 63
An administrator is trying to register a database server VM with NDB.
Which file types will prevent the registration from being successful if located in the C:\ drive?
- A. System
- B. Database
- C. Page
- D. Backup
正解：B
質問 # 64
An administrator needs to increase storage for a MongoDB database provisioned using NDB. After launching the NDB CLI, the administrator begins with creating the input file for this operation.
Which parameter should the administrator include within the input file?
- A. data_percent
- B. database
- C. update
- D. extend_storage
正解：D
解説：
To increase storage for a MongoDB database provisioned using NDB, the administrator needs to use the extend_storage parameter in the input file for the NDB CLI. This parameter specifies the amount of additional storage to be added to the database server VM in GB.
For example, if the current storage size is 100 GB and the administrator wants to increase it to 150 GB, the input file should contain the following line:
extend_storage: 50
The other parameters are not relevant for this operation. The update parameter is used to update the database software version, the database parameter is used to specify the database name, and the data_percent parameter is used to specify the percentage of data to be copied during a clone operation.
Reference: Nutanix Database Automation (NCP-DB) Course Details, Nutanix Database Automation (NCP-DB) Certification Details, Nutanix Database Automation (NCP-DB) YouTube Playlist, [Nutanix Database Automation User Guide].
質問 # 65
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