Cisco 300-915 Online Practice Questions and Exam Preparation

Cisco 300-915 Online Questions & Answers

• Question 51:

  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
  C. MQTT
  D. AMQP

• Question 52:

  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
  C. InfluxDB
  D. Elasticsearch

• Question 53:

  Which two statements about how to provision and manage data originators in a cloud environment are true? (Choose two.)

  A. The provisioning of digital identities is the responsibility of the data originators.
  B. Cloud providers offer services for automated device provisioning, which allows the lifecycle of the cloud-representation for data originators to be managed.
  C. Cloud providers offer application programming interfaces, which allow a programmatic provisioning of data originators.
  D. There is no need to provision and manage access for data originators in the cloud.
  E. The access to public clouds must be configured and managed manually.
  C. Cloud providers offer application programming interfaces, which allow a programmatic provisioning of data originators.
  E. The access to public clouds must be configured and managed manually.

• Question 54:

  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.
  C. ioxclient docker package helloworld:1.0.

• Question 55:

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

• Question 56:

  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.
  A. Verify the gateway link status.

• Question 57:

  Which two statements define the mechanism for console access of the Guest Operating System from the Cisco IR829 router? (Choose two.)

  A. The Guest OS can be accessed by default on Telnet port 2070 from the Cisco IR829 console.
  B. The Guest OS console is available directly by the AUX port 3362 from the Cisco IR829 router.
  C. The Guest OS can be accessed directly using the console port on the Cisco IR829 router.
  D. The Guest OS can be accessed by initiating SSH from the Cisco IR829 console.
  E. The Guest OS console is available only when a static IP is configured on the host.
  A. The Guest OS can be accessed by default on Telnet port 2070 from the Cisco IR829 console.
  D. The Guest OS can be accessed by initiating SSH from the Cisco IR829 console.

• Question 58:

  DRAG DROP

  An application needs to calculate if the product meets a determined quality specification, activate an automation to remove poor quality products, and report detailed results back to the cloud. All data are captured from an application that is connected to a sensor. Using the SDK of the cloud provider, drag and drop the tasks that must be completed from the left to the right. Not all options are used.

  Select and Place:

  

  

• Question 59:

  A network is being configured for an Ethernet-connected sensor. The sensor fails to send data to the configured destination. The IP address of the sensor can be pinged from a laptop on the same subnet. When a different subnet is used, the sensor cannot be reached, but other clients on the same subnet are still accessible.

  What are two reasons for the connectivity problem? (Choose two.)

  A. wrong DNS server on the sensor
  B. wrong subnet mask on your laptop
  C. wrong default gateway on the sensor
  D. wrong default gateway on your laptop
  E. wrong subnet mask on the sensor
  C. wrong default gateway on the sensor
  E. wrong subnet mask on the sensor