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JN0-221 Real Exam Questions

Automation and DevOps, Associate (JNCIA-DevOps)

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Question 1 Single choice

According to the Manifesto for Agile Software Development, what is the highest priority?

  1. A

    continuous attention to technical excellence and good design enhances quality

  2. B

    a well-documented statement of work created before the development cycle begins

  3. C

    on-time software releases based on a quarterly or semi-annual time frame

  4. D

    customer satisfaction obtained through continuous delivery of valuable software

Show answer and explanation

Correct answer: D

Explanation

References:
https://airfocus.com/glossary/what-is-agile-manifesto/#:~:text=The%20highest%20priority%20is%20to,continuous%2C%20delivery%20of%20valuable%20software

Question 2 Single choice

Click the Exhibit button.

Referring to the exhibit, which XML XPath expression will only show the IP address XML elements?

  1. A

    //address/name

  2. B

    //name

  3. C

    /name

  4. D

    /address/name

Show answer and explanation

Correct answer: D

Question 3 Single choice

Click the Exhibit button.

Referring to the exhibit, this snippet of code would represent which type of data?

  1. A

    JSON object

  2. B

    JSON array

  3. C

    YAML sequence

  4. D

    YAML mapping

Show answer and explanation

Correct answer: A

Explanation

References:
https://www.juniper.net/documentation/en_US/junos-salt/topics/topic-map/junos-salt-configuration-loading-commiting.html

Question 4 Single choice

Which HTTP status code indicates a response to a successful request?

  1. A

    302

  2. B

    400

  3. C

    500

  4. D

    200

Show answer and explanation

Correct answer: D

Explanation

References:
https://www.juniper.net/documentation/en_US/junos-space-sdk/13.1/apiref/com.juniper.junos_space.sdk.help/html/reference/Commonbehav.html

Question 5 Multiple choice

Which Junos system process handles NETCONF automation commands?

  1. A

    snmpd

  2. B

    eventd

  3. C

    mgd

  4. D

    jsd

Show answer and explanation

Correct answers: B, C

Explanation

References:
https://www.oreilly.com/library/view/automating-junos-administration/9781491928875/
ch01.html

Question 6 Multiple choice

What are two popular methods of data serialization? (Choose two.)

  1. A

    Python

  2. B

    JSON

  3. C

    SLAX

  4. D

    YAML

Show answer and explanation

Correct answers: A, D

Explanation

References:
https://docs.python-guide.org/scenarios/serialization/

Question 7 Single choice

Click the Exhibit button.

{
"interface": "ge-0/0/1.0"
}

Which type of data is contained in the key of the JSON object shown in the exhibit?

  1. A

    string

  2. B

    name

  3. C

    integer

  4. D

    interface

Show answer and explanation

Correct answer: D

Question 8 Single choice

What is the outcome of the Python a == b operator?

  1. A

    The variables will be added together

  2. B

    The variables are compared to determine if they have the same value

  3. C

    The variables are compared to determine if they have different data types

  4. D

    The variables will be subtracted from each other

Show answer and explanation

Correct answer: B

Question 9 Single choice

Click the Exhibit button.

Referring to the exhibit, what is the function of the register key?

  1. A

    to set an input value for the juniper_junos_rpc module

  2. B

    to configure a global setting for the playbook

  3. C

    to define a variable containing the return value from the module

  4. D

    to print a result to standard out

Show answer and explanation

Correct answer: C

Question 10 Single choice

Which XML shorthand notation is used when no data exists between tags?

  1. A

    <data*>

  2. B

    <data+>

  3. C

    </data/>

  4. D

    <data/>

Show answer and explanation

Correct answer: A