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Which two encryption methods can be used when configuring an SMTP server? (Choose two.)
A. TLS
B. SSL
C. S/MIME
D. IPsec
Explanation:
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.
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. extend_storage
B. update
C. database
D. data_percent
Explanation:
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:
An administrator created a database clone that is scheduled for removal on the last day of the month. A request has been received to keep the clone for an additional 14 days. After selecting the desired clone, how should the administrator satisfy this task?
A. Update the Removal schedule to the desired date.
B. Update the Removal schedule to the end of the month.
C. Remove the Removal schedule, then add the desired removal schedule.
D. Select Update and modify the Removal schedule.
Explanation:
The Removal schedule is a feature of Nutanix Era that allows you to specify when a database clone will be
automatically deleted. You can modify the Removal schedule of an existing clone by selecting the clone from
the Clones page, clicking on the Update button, and changing the Removal schedule option to the desired
date. This way, you can extend or shorten the lifespan of a clone as per your requirements. You do not need to
remove the existing Removal schedule and add a new one, as this would be an unnecessary step. You also do
not need to update the Removal schedule to the end of the month, as this would not meet the request of
keeping the clone for an additional 14 days.
An administrator is tasked with auditing NDB SLAs. What data will the administrator be reviewing?
A. Snapshot schedules
B. Clone Management
C. Data retention policies
D. Recovery Time Objective
Explanation:
NDB SLAs are service level agreements that define the data protection and recovery objectives for NDBmanaged
databases. NDB SLAs consist of data retention policies that specify how long the snapshots and log
backups of a database are kept in the Time Machine. Data retention policies can be customized to meet
different business and compliance requirements, such as daily, weekly, monthly, or yearly retention periods.
NDB SLAs also determine the frequency and schedule of the snapshots and log backups, as well as the
storage location and replication options. An administrator who is tasked with auditing NDB SLAs will be
reviewing the data retention policies of each database and Time Machine, as well as the snapshot and log
backup history and status. The administrator will also be able to monitor the storage usage and performance of
the NDB SLAs, and modify or delete the SLAs as needed. The other options are not part of the NDB SLAs,
but rather separate features or concepts of NDB. Snapshot schedules are the intervals at which NDB takes
snapshots of the databases, which are determined by the SLAs. Clone management is the process of creating,
refreshing, or deleting database clones from the Time Machine. Recovery time objective (RTO) is the
maximum acceptable time for restoring a database after a failure, which is influenced by the SLAs, but not
defined by them.
An administrator needs to distribute NDB management plane components. Which NDB HA VM needs to be deployed on the same L2 network?
A. NDB Agent
B. API Server
C. Repository VMs
D. HA Proxy VMs
Explanation:
NDB High Availability (HA) is a feature that ensures the availability and reliability of the NDB management
plane components, such as the API Server, the Repository VMs, and the NDB Agents. To enable NDB HA,
you need to deploy at least three HA Proxy VMs on the same L2 network as the NDB Server VM. The HA
Proxy VMs act as load balancers and health monitors for the NDB management plane components, and they
also provide a single endpoint for accessing the NDB APIs and UI.
What are two status values that can be set within the Alerts Dashboard? (Choose two.)
A. Auto
B. Resolved
C. Data Resiliency
D. Acknowledged
Explanation:
The correct answer is B and D because these are the two status values that can be set within the Alerts
Dashboard in NDB. Resolved means that the alert has been fixed and no longer requires attention.
Acknowledged means that the alert has been seen and is being worked on. Option A is incorrect because Auto
is not a status value, but a mode that automatically resolves alerts based on predefined rules. Option C is
incorrect because Data Resiliency is not a status value, but a feature that ensures the availability and integrity
of the data in NDB.
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