Which of the following statement is incorrect about documents in MongoDB ?

The field names cannot start with the dollar sign ($) character

The field names cannot contain the dot (.) character

The field names cannot contain the null character

17 + Mcqs in Data Model in Mongodb Page 1 McqOptions

Explore topic-wise MCQs in Mongodb.

To get the current number of namespaces in the mongo shell, use :

Each index in MongoDB requires at least _________ of data space.

_______________ is a specification for storing and retrieving files that exceed the BSON-document size limit of 16MB.

The __________ feature of collections expires documents after a period of time.

Capped collections provide __________ management of inserted documents in MongoDB.

___________ strategy is used to explicitly avoid document growth.

With MongoDB 3.0.0,the default use of the Power of _________ Allocations minimizes the occurrences of re-allocations as well as allows for the effective reuse of the freed record space.

The ___________ JavaScript shell and the MongoDB language drivers translate between BSON and the language-specific document representation.

The Array of Ancestors pattern is slightly slower than the ________________ pattern

Which of the following statement is incorrect about documents in MongoDB ?

Which of the following field allows efficient retrieval of chunks ?

__________ define what records to select for read, update, and delete operations.

Which of the following is related to parsing of document for root ?

Use of the approximation field for the query and sort operations requires that applications perform _______-side post-processing

The ______ factor is a constant and known property of the currency.

To add structures to your document to support keyword-based queries add the keywords as ______ in the array.

In one field, exact monetary value is encoded as a _________ data type.