NCP-DB Exam Dumps - Nutanix Certified Professional - Database Automation (NCP-DB v6.10)

NDB supports SMTP server configuration for sending email notifications and alerts. SMTP server configuration requires specifying the SMTP server address, port, username, password, and encryption method. The encryption method determines how the email messages are secured during transmission. NDB supports two encryption methods for SMTP server configuration: TLS and SSL.

TLS (Transport Layer Security) is a protocol that encrypts and authenticates data between the email client and the SMTP server. TLS can operate in two modes: explicit and implicit. In explicit mode, the email client and the SMTP server negotiate the encryption method and parameters after establishing a plain text connection. This mode typically uses port 587. In implicit mode, the email client and the SMTP server assume that the connection is encrypted from the start, without any negotiation. This mode typically uses port 465.

SSL (Secure Sockets Layer) is a predecessor of TLS that also encrypts and authenticates data between the email client and the SMTP server. SSL operates in implicit mode only, and uses port 465 by default. SSL is less secure than TLS, but it is still widely used and supported by many email providers.

S/MIME (Secure/Multipurpose Internet Mail Extensions) is a standard that encrypts and signs email messages at the application layer, rather than the transport layer. S/MIME requires the use of digital certificates and public key cryptography to ensure the confidentiality and integrity of email messages. S/MIME is not a valid encryption method for SMTP server configuration, as it does not affect the connection between the email client and the SMTP server.

IPsec (Internet Protocol Security) is a suite of protocols that secures IP packets at the network layer, rather than the application or transport layer. IPsec can encrypt and authenticate data between any two IP endpoints, such as routers, firewalls, or hosts. IPsec is not a valid encryption method for SMTP server configuration, as it does not apply to the specific protocol or port used by SMTP.

References:

Nutanix Database Automation (NCP-DB) Course Details, Section 1.4: NDB Alerts and Notifications

Nutanix Database Automation (NCP-DB) Certification Details, Objective 1.4: Configure NDB Alerts and Notifications

Nutanix Database Automation (NCP-DB) YouTube Playlist, Video 1.4: NDB Alerts and Notifications

[Nutanix Database Automation (NCP-DB) User Guide], Section 1.4: Configure SMTP Server Settings

The size of a database Time Machine in Nutanix Era is defined by the size of all snapshots and/or transaction logs maintained by Era1. The Time Machine leverages Nutanix’s efficient snapshot technology to capture the state of the database at different points in time1. These snapshots, along with transaction logs that record changes between snapshots, constitute the data maintained by the Time Machine1. Therefore, the size of the Time Machine is determined by the total size of these snapshots and transaction logs1.

Nutanix Database Service (NDB) supports high availability (HA) instances for certain relational database management systems (RDBMS). Among the listed options, NDB natively supports Oracle and PostgreSQL for HA configurations, enabling features like replication and failover. These databases are well-integrated with NDB’s Time Machine and HA frameworks.

Option A (MongoDB) is incorrect because MongoDB is a NoSQL database, not an RDBMS, and is not supported for HA instances in NDB.

Option B (MariaDB) is incorrect because, while MariaDB is an RDBMS, it is not currently supported for HA instances in NDB v6.10.

Option C (Oracle) is correct as NDB supports Oracle in HA mode with features like Data Guard integration.

Option D (PostgreSQL) is correct as NDB supports PostgreSQL HA with streaming replication.

Note: The typo "PostgreSGL" in the question is assumed to mean "PostgreSQL" based on context.

References

Nutanix Database Service (NDB) User Guide, Chapter 4: Managing Database Engines, Section: Supported RDBMS for HA

Nutanix Certified Professional - Database Automation (NCP-DB) v6.5 Blueprint, Section 4: Manage Database Engines

The Nutanix Era platform provides a feature called Time Machine, which is designed to manage the lifecycle of database copies and clones1. When a new table is added to the source database, the administrator should perform a Log Catch-up using the source database’s Time Machine. This action ensures that the Time Machine captures the latest state of the source database, including the newly added table1. After performing the Log Catch-up, the administrator should refresh the clone database. The refresh operation updates the clone with the latest state captured by the Time Machine, thereby publishing the new table to the clone1.

An NDB compute profile defines the CPU and memory resources for the database server VMs that are provisioned using NDB. It does not include any information about the network, domain, or software of the database server VMs. Those are specified in separate profiles, such as network profile, domain profile, and software profile.

References: Nutanix Support & Insights, section “NDB Compute”