MongoDB Questions and Answers – MongoDB documents – 1

This set of MongoDB Multiple Choice Questions & Answers (MCQs) focuses on “MongoDB documents – 1”.

1. The __________ JavaScript shell and the MongoDB language drivers translate between BSON and the language-specific document representation.
a) mongod
b) mongo
c) iscript
d) none of the mentioned
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2. Point out the correct statement.
a) MongoDB stores chunks on disk in the XML serialization format
b) MongoDB stores documents on disk in the BSON serialization format
c) MongoDB stores documents on RAM in the JSON serialization format
d) All of the mentioned
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3. BSON is a binary representation of ________ documents.
a) JSON
b) XML
c) JScript
d) All of the mentioned
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4. MongoDB documents are composed of field-and-value pairs and have the following structure?
a) field1:; value1
b) field1: value1;
c) field1: value1
d) none of the mentioned
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5. Point out the wrong statement.
a) Some documents created by internal MongoDB processes may have duplicate fields
b) no MongoDB process will ever add duplicate fields to an existing user document
c) The maximum BSON document size is 16 megabytes
d) None of the mentioned
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6. To store documents larger than the maximum size, MongoDB provides the _______ API.
a) Grid
b) MMS
c) GridFS
d) None of the mentioned
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7. Index keys that are of the _______ type are more efficiently stored in the index.
a) Materialized Paths
b) BinData
c) String
d) None of the mentioned
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8. MongoDB uses the ________ notation to access the elements of an array and to access the fields of an embedded document.
a) Dot
b) Array
c) Nested Sets
d) None of the mentioned
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