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200-301 practice question 504 of 506

Cisco Certified Network Associate. Free level, Cisco. Free question with the correct answer and a full explanation.

200-301 Question 504

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You are working with a network automation script that retrieves JSON data from a RESTful API. Below is a snippet of the JSON response:

{ "device": { "hostname": "Router1", "interfaces": [ { "name": "GigabitEthernet0/0", "status": "up", "ip_address": "192.168.1.1" }, { "name": "GigabitEthernet0/1", "status": "down", "ip_address": "192.168.1.2" } ] } }

Which of the following statements correctly identifies a component or structure of this JSON data?

  1. A

    "device" is an object.

  2. B

    "interfaces" is an array.

  3. C

    "name" is a key within the "interfaces" array.

  4. D

    "192.168.1.1" is a key within the "interfaces" array.

Show answer and explanation

Correct answers: A, B, C

Explanation

In JSON, data is structured using objects, arrays, keys, and values. Objects are enclosed in curly braces {}, arrays in square brackets [], and key-value pairs are used to represent data relationships. Understanding these components is crucial for interpreting and working with JSON data.

  • A. Correct.

    "device" is an object because it contains key-value pairs enclosed in curly braces {}.

  • B. Correct.

    "interfaces" is an array because it is enclosed in square brackets [] and contains multiple objects.

  • C. Correct.

    "name" is a key within the "interfaces" array, as it is defined inside each object in the array.

  • D. Incorrect.

    "192.168.1.1" is not a key but a value associated with the "ip_address" key within the objects in the "interfaces" array.

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