MongoDB Exam C100DBA Topic 1 Question 2 Discussion

Actual exam question for MongoDB's C100DBA exam

Question #: 2
Topic #: 1

Which of the following commands finds all the documents in the posts collection with post timestamp field as null?

Adb.posts.find( { post_timestamp: { $fieldtype: null } } )

Bdb.posts.find( { post_timestamp: { $type: null } } )

Cdb.posts.find( { post_timestamp : { $type; 10 > > )

Ddb.posts.find( { post_timestamp: { $fieldtype: 10 } } )

Show Suggested Answer

Suggested Answer: C

by Vincent at May 06, 2022, 11:52 AM

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