300-915 Online Practice Questions and Answers

DRAG DROP

An engineering team developed a solution that gathers data via a proprietary protocol (TCP/IP based) to a IR1101 gateway, which then sends the data to the cloud. Drag and drop the action steps from the left into the correct order on the right to get this solution to operate. Not all options are used.

Select and Place:

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.

A sensor reads potentially critical data from an industrial device, but most of the data from the sensor is not critical information and does not change unless a critical event happens.

Which data work flow is appropriate for how the critical and non-critical data is processed?

A. 1. Acquire sensor data.

2.

Filter non-actionable data.

3.

Perform action on data.

4.

Send critical data and action performed on data to cloud for storing.

B. 1. Acquire sensor data.

2.

Send data to cloud for processing and to determine action.

3.

Send required action back to edge for action completion.

4.

Perform action on data.

C. 1. Acquire sensor data.

2.

Filter non-actionable data.

3.

Perform action on data.

D. 1. Acquire sensor data.

2.

Perform action on data.

3.

Send data and action performed on data to cloud for recording.

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

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.

Refer to the exhibit. The code snippet provides information about the packet captures within a network.

How can the most used source IP addresses within a specific time be visualized?

A. line graph

B. bar histogram

C. scatter plot

D. heatmap

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.)

A. COAP

B. Modbus TCP

C. MQTT

D. AMQP

E. OPC-DA

Refer to the exhibit. When a laptop is connected to a device via a serial connection, which action makes the output readable?

A. Change the baudrate in the connection settings.

B. Reboot the device in case a firmware error is the issue.

C. Change the power level of the device.

D. Change the unicode settings to UTF-8.

As part of an IoT project, an organization is developing an edge application that will run on a gateway to securely transmit sensor information it receives into an IoT cloud. Based on the Agile software development lifecycle, the development team is planning to implement a CI/CD pipeline.

Which two methods should be suggested to make the software development lifecycle more secure during the implementation and testing? (Choose two.)

A. Perform automated code reviews prior to deployment.

B. Implement auto-provisioning security inspection for the code.

C. Perform on-going penetration testing on the system.

D. Perform a GAP analysis on current security activities and policies.

E. Train members of the team in a secure software development lifecycle methodology such as OWASP.

Which command is used to package a Docker-style Cisco IOx app using ioxclient?

A. ioxclient docker create helloworld:1.0.

B. ioxclient docker-app helloworld:1.0.

C. ioxclient docker package helloworld:1.0.

D. ioxclient docker helloworld:1.0.