Vendor: Cisco
Exam Code: 300-915
Exam Name: Developing Solutions using Cisco IoT and Edge Platforms (DEVIOT)
Certification: Cisco Certifications
Total Questions: 59 Q&A
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Updated on: Dec 07, 2025
Exam retired
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When an RS232 device is connected to a Cisco IR829 router, the data collected is not being parsed correctly by the edge application.
Which two steps should be taken to troubleshoot the issue? (Choose two.)
A. SSH access on the Cisco IR829 router must be enabled for IOx Guest OS.
B. Communication mode must be set to half duplex over serial connection.
C. Serial cable length should not exceed 1.5 meters.
D. Ensure that communication parameters like baud rate and parity are set correctly.
E. Set the cable connections based on the PIN layout from the sensor vendor.

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.
Which action should be taken when a southbound device is not connecting?
A. Verify the gateway link status.
B. Review the edge application logs.
C. Verify the sensor status.
D. Redeploy the edge application.
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