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300-915 Exam Dumps - Cisco Certified DevNet Professional Questions and Answers

Question # 4

What is a major difference of MQTT in terms of design compared to AMQP?

Options:

A.

MQTT requires more bandwidth.

B.

MQTT has very low overhead.

C.

MQTT has more advanced routing features for messages.

D.

MQTT provides routing based on headers.

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Question # 5

Which two statements define the mechanism for console access of the Guest Operating System from the Cisco IR829 router? (Choose two.)

Options:

A.

The Guest OS can be accessed by default on Telnet port 2070 from the Cisco IR829 console.

B.

The Guest OS console is available directly by the AUX port 3362 from the Cisco IR829 router.

C.

The Guest OS can be accessed directly using the console port on the Cisco IR829 router.

D.

The Guest OS can be accessed by initiating SSH from the Cisco IR829 console.

E.

The Guest OS console is available only when a static IP is configured on the host.

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Question # 6

When constructing a Python script for data extraction using GMM APIs on a Cisco Kinetic Cloud platform, how should the API authentication be implemented?

Options:

A.

Generate the API keys once and edit the permissions as needed.

B.

Generate and use the API keys for the required access level from the Kinetic Cloud application.

C.

Use a complex username and password with 128-bit encryption.

D.

Use a complex username with an auto-generated password from the Kinetic Cloud application.

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Question # 7

A network is being configured for an Ethernet-connected sensor. The sensor fails to send data to the configured destination. The IP address of the sensor can be pinged from a laptop on the same subnet. When a different subnet is used, the sensor cannot be reached, but other clients on the same subnet are still accessible.

What are two reasons for the connectivity problem? (Choose two.)

Options:

A.

wrong DNS server on the sensor

B.

wrong subnet mask on your laptop

C.

wrong default gateway on the sensor

D.

wrong default gateway on your laptop

E.

wrong subnet mask on the sensor

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Question # 8

Drag and drop the tasks from the left into the correct order on the right for transporting data from sensors to the cloud, in order to extract the machine data and use the cloud-based analytics for predictive maintenance.

Options:

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Question # 9

Refer to the exhibit.

When a Docker image is built using this Dockerfile, which two statements are valid on Cisco IOx 1.8 and before? (Choose two.)

Options:

A.

It builds an image that can be executed on all Cisco platforms.

B.

It builds a Docker image that cannot be used directly on Cisco IOx.

C.

It compiles a "hello world" program in C.

D.

It creates two separate images.

E.

It builds an IOx package that can be deployed directly.

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Question # 10

An IoT engineer is working on a connected machines project.

Which two protocols must be used during the data provisioning process when data is sent from the shop floor IoT system to the customer’s public cloud? (Choose two.)

Options:

A.

COAP

B.

Modbus TCP

C.

MQTT

D.

AMQP

E.

OPC-DA

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Question # 11

An IoT application has been built into the application CI/CD pipeline. The application needs credentials to access other applications, APIs, and cloud resources.

When should the credentials be inserted into the application using the CI/CD process?

Options:

A.

hard coded into your application code base

B.

during application runtime

C.

after application testing

D.

during application build time

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Question # 12

Refer to the exhibit.

The graph has been provided by the monitoring team to the IoT Engineer. The red line represents the consumption of energy from an industrial machine.

Which two pieces of information can be captured? (Choose two.)

Options:

A.

The green graph visualizes the mean value of the data points.

B.

The green graph visualizes if the electronic device is not in stand-by mode.

C.

The orange graph visualizes a boolean: power on/off.

D.

The orange graph contains more information than the red graph.

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Exam Code: 300-915
Exam Name: Developing Solutions Using Cisco IoT and Edge Platforms (DEVIOT)
Last Update: Feb 22, 2025
Questions: 60
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