MongoDB Exam C100DBA Topic 1 Question 71 Discussion

Actual exam question for MongoDB's C100DBA exam

Question #: 71
Topic #: 1

[All C100DBA Questions]

Which of the following are valid json documents? Select all that apply.

A{'a':l, 'b':{'b':l, 'c':'foo', 'd':'bar', 'e':[l,2,4]}}

B{'city':'New York', 'population', 7999034, boros:{'queens', 'manhattan', 'staten island', 'the bronx', u 'brooklyn'}}

C{'name':'Fred Flintstone';'occupation':'Miner';'wife':'Wilma'}

D{ }

Show Suggested Answer

Suggested Answer: A

by Peggie at Jul 04, 2023, 04:57 AM

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Joaquin

2 months ago

Wow, these questions really separate the JSON pros from the JSON posers. I'm just glad I'm not the one who wrote 'boros' instead of 'boroughs' in B).

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Cyril

2 months ago

I think A), B), and D) are valid JSON, but C) is a bit of a mess. Semicolons instead of colons? What is this, the Stone Age?

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Kaitlyn

1 months ago

D) is also valid JSON, even though it is an empty object.

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Kaitlyn

1 months ago

B) is not valid JSON, there is a syntax error with the key-value pair for population.

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Kaitlyn

1 months ago

A) is valid JSON, it has the correct structure with key-value pairs and arrays.

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Lindsey

3 months ago

Haha, looks like Cory is having trouble with their JSON syntax. Commas and colons are key, my friend!

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Cory

3 months ago

B) and C) have some issues. B) is missing commas between the key-value pairs, and C) has semicolons instead of colons between the keys and values.

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Hermila

1 months ago

France: B) and C) have some issues. B) is missing commas between the key-value pairs, and C) has semicolons instead of colons between the keys and values.

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Krissy

2 months ago

D) { }

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France

2 months ago

B) {'city';'New York', 'population', 7999034, boros;{'queens', 'manhattan', 'staten island', 'the bronx', u 'brooklyn'}

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Cherilyn

2 months ago

A) {'a';l, 'b';{'b';l, 'c';'foo', 'd';'bar', 'e';[l,2,4]}

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Barrett

3 months ago

I believe A and D are valid because they follow the JSON syntax.

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Val

3 months ago

I think only A is valid because it has the correct key-value pairs.

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Willodean

3 months ago

A and D are valid JSON documents.

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Asha

3 months ago

I'm not sure about B and C, but I think A and D are definitely valid JSON documents.

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Heidy

3 months ago

A) and D) are valid JSON documents. The keys and values are properly formatted, and the empty object in D) is also a valid JSON document.

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Josphine

2 months ago

C) has a syntax error with the semicolons, and B) has an issue with the key-value pair for 'population'.

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Zena

3 months ago

I agree, A) and D) are the only ones that look like valid JSON documents.

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Theola

3 months ago

I think A) and D) are the correct options. They seem to follow the JSON format.

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Haydee

3 months ago

A) and D) are valid JSON documents. The keys and values are properly formatted, and the empty object in D) is also a valid JSON document.

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Solange

3 months ago

I agree with you, Krystal. A and D are valid because they have correct key-value pairs.

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Krystal

3 months ago

I think A and D are valid JSON documents.

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