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Developing Solutions Using Cisco IoT and Edge Platforms (DEVIOT) Questions and Answers

Question 1

When trying to subscribe to an MQTT broker on the internet, the MQTT client is on a private subnet and must be NATed to reach the public broker.

What is the expected outcome when this configuration is in place?

Options:

A.

The client periodically reconnects to the default gateway.

B.

The client connects only once using the PENDING message to the broker.

C.

The client periodically reconnects to the broker over the NAT connection.

D.

The client connects only once using the CONNECT massage to the broker.

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Question 2

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.

Question 3

Refer to the exhibit.

A new application has just been developed as a Docker container. What is the missing step for packaging the container ready for deployment in IOx?

Options:

A.

Pull/push the image to the Docker registry.

B.

Build the package.yaml files.

C.

Build the package.cert file to sign the app.

D.

Log in to device manager and load the application.