JSON LinkedIn Skill Assessment Answer

Q1. By convention, what name is used for the first key in a JSON schema?

1. schema
2. $schema✔️
3. JsonSchema
4. JSONschema

Q2. Which code is the closest JSON equivalent of the data shown?

[
    'red',
    'blue',
    'green'
]

1. A

["red", "blue", "green"]

2. B

["red", "blue", "green"]

3. C✔️

{
  "color": "red",
  "color": "blue",
  "color": "green"
}

4. D

{
  "red": "red",
  "blue": "blue"
}

Q3. Which JavaScript method converts a JavaScript value to Json?

1. JSON.parse()
2. JSON.stringify()✔️
3. JSON.toString()
4. JSON.objectify()

Q4. Which data type is NOT part of JSON standard?

1. string
2. number
3. date✔️
4. array

Q5. Which term is commonly used to refer to converting data to JSON?

1. unpacking
2. serialization✔️
3. deserialization
4. parsing

Q6. Which code uses the correct JSON syntax to encode the key/value pair shown?

accountNum: '000605802'

1. “accountNum”: “000605802”✔️
2. accountNum: “000605802”
3. “accountNum”: 000605802
4. accountNum: 000605802

Q7. What character do you specify before a JSON control character when you want to use that control characters as a literal part of a string?

1. /
2. ✔️
3. :
4. {

Q8. Which date type is part of the JSON standard?

1. Boolean✔️
2. map
3. promise
4. function

Q9. Which key name is used to specify properties that must be included for JSON to be valid?

1. important
2. base
3. core
4. required✔️

Q10. Which is the valid JSON equivalent of the data shown?

{
	photo: {
	width: 1600,
	height: 900,
	binaries: {
	url: 'https://www.example.com/images/34097349843',
	thumbnail: 'https://www.example.com/images/thumbs/34097349843'
	},
	animated: false,
	tags: [116, 943, 234, 38793],
	}
}

1. A

{
  "photo": {
    "width": 1600,
    "height": 900,
    "binaries": {
      "url": "https://www.example.com/images/34097349843",
      "thumbnail": "https://www.example.com/images/thumbs/34097349843"
    },
    "animated": "false",
    "tags": [116, 943, 234, 38793]
  }
}

2. B

{
  "photo": {
    "width": 1600,
    "height": 900,
    "binaries": {
      "url": "https://www.example.com/images/34097349843",
      "thumbnail": "https://www.example.com/images/thumbs/34097349843"
    },
    "animated": false,
    "tags": [116, 943, 234, 38793]
  }
}

3. C✔️

{
  "photo": {
    "width": 1600,
    "height": 900,
    "binaries": {
      "url": "https://www.example.com/images/34097349843",
      "thumbnail": "https://www.example.com/images/thumbs/34097349843"
    },
    "animated": false,
    "tags": [116, 943, 234, 38793]
  }
}

4. D

{
  "photo": {
    "width": "1600",
    "height": "900",
    "binaries": {
      "url": "https://www.example.com/images/34097349843",
      "thumbnail": "https://www.example.com/images/thumbs/34097349843"
    },
    "animated": "false",
    "tags": ["116", "943", "234", "38793"]
  }
}

Q11. How do you store several paragraphs of text as a string in JSON?

1. Escape all whitespaces expect space characters.✔️
2. Escape line breaks.
3. Escape paragraphs.
4. Remove all whitespaces

Q12. What data type is represented by the value of the key/value pair shown?

loggedIn: true

1. string
2. Boolean✔️
3. number
4. object

Q13. If you need to store the loggedIn status of a user in JSON as a boolean, what is the correct syntax?

1. “loggedIn”: (true)
2. loggedIn: “true”
3. “loggedIn”: true✔️
4. loggedIn: {true}

Q14. What does JSON with padding (JSON-P) use to make a request?

1. an element
2. a header request
3. the



4. comments✔️
5. arrays
6. null values

printNullness(JSON.parse('{ "lemmings": [] }'));
printNullness(JSON.parse('{ "lemmings": null }'));
printNullness(JSON.parse('{ "lemmings": "null" }'));
function printNullness() {
  if (testMe.lemmings == null) console.log('null');
  else console.log('not null');
}

not null
null
not null

null
null
not null

not null
null
null

null
null
null