MongoDB
C100DBA · Question #46
C100DBA Question #46: Real Exam Question with Answer & Explanation
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Question
Given a collection posts as shown below having a document array comments, which of the following command will create an index on the comment author descending?
Exhibit
Options
- Adb.posts.createIndex({^comments.$.author":-l});
- Bdb. posts.createIndex({^comments.author" :1});
- Cdb.posts.createIndex({^commerits.author";-!});
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