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Home Cisco® 300-915

Cisco® 300-915 Exam Practice Questions (P. 3)

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Question #11
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.)
  1. A
    SSH access on the Cisco IR829 router must be enabled for IOx Guest OS.
  2. B
    Communication mode must be set to half duplex over serial connection.
  3. C
    Serial cable length should not exceed 1.5 meters.
  4. D
    Ensure that communication parameters like baud rate and parity are set correctly.
  5. E
    Set the cable connections based on the PIN layout from the sensor vendor.

Correct Answer:
DE

Question #12

Refer to the exhibit. Which two statements about MQTT messaging are true? (Choose two.)
  1. A
    Result code 5 means the connection is accepted; result code 0 means the connection is "refused, not authorized".
  2. B
    Redundant ClientIDs are supported by MQTT brokers.
  3. C
    MQTT does not support a "keep alive" functionality because it runs on top of TCP.
  4. D
    Result code 0 means the connection is accepted; result code 5 means the connection is "refused, not authorized".
  5. E
    Brokers can send the Last Will and Testament messages on behalf of the client.

Correct Answer:
DE

Question #13
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:


Correct Answer:

Question #14
How does the Cisco router (IR) and switch (IE) portfolio support edge data services?
  1. A
    Edge data services can be run and managed as containers using Cisco IOx.
  2. B
    Edge data services can run only in virtual machines on a separate compute layer.
  3. C
    Edge data services are aliases for IR/IE configuration services.
  4. D
    Edge data services run as separate instances only on virtual machines.

Correct Answer:
C

Question #15

Refer to the exhibit. While troubleshooting an error on an application descriptor for a Docker app in Cisco IOx (package.yaml), the app type appears to be missing.
Which app type must be added to the snippet to resolve the issue?
  1. A
    paas
  2. B
    docker-vm
  3. C
    docker
  4. D
    docker-app

Correct Answer:
C

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