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300-915 Questions and Answers

Question # 1

After an application is deployed, potential issues arise around connectivity. As part of the troubleshooting process, the IP address must be determined to ensure end-to-end communication.

Which method provides the required details using the Cisco IOx CLI?

A.

ioxclient application status

B.

ioxclient application metrics

C.

ioxclient application getconfig

D.

ioxclient application info

Question # 2

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?

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.

Question # 3

An IoT engineer is responsible for security at an organization. Humans and machines need to be allowed to access services like database or compute on AWS. The engineer decides to implement dynamic secrets.

Which method helps to get this implementation accurate from a security point of view?

A.

Create a central secret system for humans and machine to obtain very short-lived dynamic secrets to access any service.

B.

Humans cannot be trusted, and each time they authenticate they should be issued with dynamic secrets.

Machines can be trusted, and they can be issued with static credentials.

C.

Maintain a different service associated to secret systems to issue access.

D.

After a user is authenticated by any trusted system, the user can be trusted to use any service.

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