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Nutanix NCP-DB-6.5 Prüfungsplan:

Thema	Einzelheiten
Thema 1	Apply procedural concepts to test and publish database patches Protect NDB-managed Databases Using Time Machine
Thema 2	Apply procedural concepts to create Data Access Management (DAM) policies Operate and Maintain an NDB Environment
Thema 3	Deploy and Configure an NDB Solution Apply procedural concepts to restore source databases
Thema 4	Given business requirements, perform a database clone Apply procedural concepts to register database server VMs and databases
Thema 5	Apply procedural concepts to provision databases Create, delete, and modify SLA retention policies
Thema 6	Monitor Alerts and Storage Usage Within an NDB Implementation Apply procedural concepts to add Nutanix clusters to NDB
Thema 7	Describe NDB features and benefits Define database and NDB terminology

>> NCP-DB-6.5 Vorbereitung <<

NCP-DB-6.5 Prüfungsfragen Prüfungsvorbereitungen 2024: Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 - Zertifizierungsprüfung Nutanix NCP-DB-6.5 in Deutsch Englisch pdf downloaden

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Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 NCP-DB-6.5 Prüfungsfragen mit Lösungen (Q96-Q101):

96. Frage
An administrator needs to create a custom PostgreSQL HA software profile.
Which software component manages the state of the cluster and handles failover?

A. etcd
B. Patroni
C. HAProxy
D. keepa lived

Antwort: B

Begründung:
NDB supports PostgreSQL HA software profiles for provisioning PostgreSQL databases with high availability. PostgreSQL HA software profiles consist of three components: etcd, HAProxy, and Patroni.
etcd is a distributed key-value store that provides a reliable way to store configuration data across a cluster of machines. etcd is used by Patroni to store and synchronize the cluster state and configuration.
HAProxy is a load balancer that distributes incoming requests to the PostgreSQL nodes. HAProxy is used to expose a single endpoint for database connections even as the roles of the individual nodes change.
Patroni is a template for PostgreSQL high availability. Patroni is responsible for managing the state of the cluster and handling failover. Patroni uses etcd as the distributed configuration store and relies on HAProxy for load balancing.
Therefore, the software component that manages the state of the cluster and handles failover is Patroni.
Reference: Nutanix Database Automation (NCP-DB) Course Details, Section 2.4: Provisioning PostgreSQL Databases Nutanix Database Automation (NCP-DB) Certification Details, Objective 2.4: Provision PostgreSQL Databases Nutanix Database Automation (NCP-DB) YouTube Playlist, Video 2.4: Provisioning PostgreSQL Databases
[Nutanix Database Automation (NCP-DB) User Guide], Section 2.4: Provision PostgreSQL Databases
[PostgreSQL High Availability: Under the Hood - Nutanix.dev]

97. Frage
Which ports must be open between the NDB server and Controller VMs to facilitate iSCSI connections?

A. 5985 and 5986
B. 80 and 443
C. 22 and 9440
D. 3205 and 3260

Antwort: D

98. Frage
Which statement is true regarding the NDB alert retention feature?

A. NDB supports retention at the registered cluster.
B. NDB supports alert retention globally.
C. NDB supports retention at the grouped policy.
D. NDB supports retention at the individual policy.

Antwort: B

Begründung:
The NDB alert retention feature allows the database administrator to configure the duration for which the NDB alerts are stored and displayed in the NDB instance. The NDB alert retention feature supports alert retention globally, meaning that the same retention period applies to all the alerts generated by the NDB instance, regardless of the source cluster, policy, or operation. The database administrator can set the alert retention period from 1 day to 365 days, or choose to retain the alerts indefinitely. The NDB alert retention feature helps to manage the storage space and the visibility of the NDB alerts.
The NDB alert retention feature does not support retention at the individual policy, grouped policy, or registered cluster level. The NDB alert retention feature applies to all the alerts uniformly, and does not allow the database administrator to specify different retention periods for different policies or clusters.
Reference: Nutanix Database Management & Automation Training Course, Module 3: Nutanix Era Deployment, Lesson 3.2: Nutanix Era Deployment, slide 11.
Nutanix Database Management & Automation Training Course, Module 5: Nutanix Era Operations, Lesson 5.1: Nutanix Era Operations, slide 6.

99. Frage
When trying to restore a database via Time Machine (TM), the option to restore data to a Point in Time is not available.
What should the administrator do to enable Point in Time Recovery?

A. Use an SLA that supports Continuous Log retention.
B. Take a Manual snapshot and use it for DB recovery.
C. Use Brass SLA & update the Log catch up frequency.
D. Update the TM schedule to perform DB Log catch up.

Antwort: A

Begründung:
Point in Time Recovery (PITR) is a feature of NDB that allows restoring a database to any point in time within the retention period of the SLA. To enable PITR, the SLA must support Continuous Log retention, which means that NDB captures and stores the database logs continuously. This allows NDB to replay the logs from the last snapshot to the desired point in time during the restore process. The other options do not enable PITR, but rather affect the frequency and timing of the snapshots and log catch up operations.
Reference: Nutanix Support & Insights, section "NDB Time Machine Point in Time Recovery"

100. Frage
An administrator enables NDB Multi-Cluster on Cluster

A. Cluster A: 1 NDB Server, 1 NDB Agent
Cluster B: 1 NDB Agent
B. Cluster B is then registered with NDB.
What are the different NDB Service VMs present in each Nutanix cluster?B. Cluster A: 1 NDB Server Cluster B: 1 NDB Agent
C. Cluster A: 1 NDB Agent
Cluster B: 1 NDB Server
D. Cluster A: 1 NDB Agent
Cluster B: 1 NDB Server, 1 NDB Agent

Antwort: A

101. Frage
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