Cisco Cisco Certifications 300-915 Questions & Answers

• Question 21:

  Which method is used to gather data from a sensor?

  A. Configure the edge application to push data to the cloud.

  B. Set up a rendezvous point where the sensor and edge application meet.

  C. Set up a dedicate process for each sensor that grabs data.

  D. Pull data from the sensor.

  Correct Answer: A

• Question 22:

  Which lightweight protocol is used to send data from the edge compute resources to the cloud?

  A. MQTT

  B. XMPP

  C. AMQP

  D. MT Connect

  Correct Answer: A

• Question 23:

  

  Refer to the exhibit. Based on the MQTT client output, which action should be taken so that the connection to the broker can be established?

  A. Change the username/password.

  B. Open port 1883 on the network firewall.

  C. Change the IP address of the broker.

  D. Add the certificate.

  Correct Answer: A

• Question 24:

  A customer is deploying sensors with Cisco IR829 routers in moving trucks to continuously monitor the health of engines using a cloud application.

  Which data extraction and processing strategy is best suited in this environment?

  A. No need to store data locally, upload in real time to the cloud for processing.

  B. Generate local alerts and create reports at the edge, and upload to the cloud at the end of the day.

  C. Use the store and forward mechanism to upload the information at the earliest to cloud.

  D. Ensure that data is stored for a longer duration locally and upload to the cloud every week.

  Correct Answer: B

• Question 25:

  Which two data sources are used with a visualization tool such as Grafana? (Choose two.)

  A. Microsoft Power BI

  B. Kibana

  C. InfluxDB

  D. Elasticsearch

  E. Tableau

  Correct Answer: CD

• Question 26:

  

  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.)

  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.

  Correct Answer: AC

• Question 27:

  

  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?

  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.

  Correct Answer: B

• Question 28:

  Which two commands inside a Docker container on a gateway help to troubleshoot why the compute performance of the device is slowing down? (Choose two.)

  A. show processes

  B. top

  C. wmic

  D. ps

  E. proc

  Correct Answer: BD

• Question 29:

  Where are edge data services typically instantiated?

  A. at the edge of network

  B. in the cloud

  C. in the data center

  D. in a private cloud

  Correct Answer: A

• Question 30:

  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

  Correct Answer: D