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MongoDB C100DBA Exam - Topic 1 Question 127 Discussion

Posted by Gracia on May 07, 2026 at 08:28 PM

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

Suggested Answer: A, D

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24 comments · newest first
VE
Vernice 2 days ago
B is also invalid. Missing colons and quotes.
AL
Alesia 7 days ago
Agreed. A has issues.
TH
Thaddeus 12 days ago
A looks wrong. 'l' should be a number, not a letter.
TE
Temeka 17 days ago
Yeah, D is definitely valid. Simple and correct.
LI
Lilli 22 days ago
I think D is valid. Just an empty object.
CA
Carmen 28 days ago
Yup, just D.
AM
Amina 1 month ago
So, just D is valid then?
RO
Rodney 1 month ago
Exactly! C is not valid JSON.
EM
Emile 1 month ago
C is incorrect too. Semicolons instead of commas.
MO
Mohammad 2 months ago
Right! B is a mess.
LE
Leota 2 months ago
B is also invalid. Missing colons and quotes.
AL
Albina 2 months ago
Agreed. A has issues.
WI
Willis 2 months ago
A looks wrong. 'l' should be a number, not a letter.
CA
Carmen 2 months ago
Yeah, D is definitely valid. Simple and correct.
AM
Amina 2 months ago
I think D is valid. Just an empty object.
YV
Yvonne 3 months ago
Yup, D is the only one that works!
DE
Desmond 3 months ago
Wait, are we sure about C? That semicolon looks off.
JE
Jess 3 months ago
B is totally wrong, missing colons!
RA
Raina 3 months ago
A has errors, "l" should be a valid value.
EL
Elvera 3 months ago
D is valid, it's an empty object!
CA
Carin 4 months ago
B has some syntax errors too, like the commas and missing quotes around keys. I feel like only D is safe here.
CR
Cristina 5 months ago
I'm not sure about A; I think the "l" should be a number or a string, but I can't recall exactly.
AJ
Aja 5 months ago
I practiced a similar question, and I think D is definitely valid since it's an empty object.
KI
Kimberlie 5 months ago
I remember that JSON keys need to be in double quotes, so I think A and B might have issues.
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