Point out the wrong statement.

  1. Home
  2. Back

Question:
Point out the wrong statement.

1.Some documents created by internal MongoDB processes may have duplicate fields

2. no MongoDB process will ever add duplicate fields to an existing user document

3.The maximum BSON document size is 16 megabytes

4.None of the mentioned

Posted Date:-2022-01-24 00:02:55

More MCQS Questions and answers

  1. If your storage system does not support snapshots, you can copy the files directly using _____
  2. In the mongo shell, you can access the creation time of the ObjectId, using the ______ method.
  3. Point out the correct statement.
  4. To get a correct snapshot of a running mongod process, you must have _________ enabled.
  5. To store documents larger than the maximum size, MongoDB provides the _______ API.
  6. User-defined indexes on multiple fields is called ______
  7. Which of the field is reserved for use as a primary key?
  8. Which of the following data structures are documents in MongoDB?
  9. ____ is a binary serialization format used to store documents and make remote procedure calls in MongoDB.
  10. ____ returns the JavaScript representation in the form of a string literal.
  11. _____ is a specification for storing and retrieving files that exceed the BSON-document size limit of 16MB.
  12. _____ store the relationships between data by including links or references from one document to another.
  13. _________ documents capture relationships between data by storing related data in a single document structure.
  14. A ____________ data model with embedded data combines all related data for a represented entity in a single document.
  15. An application communicates with MongoDB by way of a client library, called ____
  16. BSON is a binary representation of ________ documents.
  17. By default GridFS limits chunk size to ______ k.
  18. Each data type has a corresponding number that can be used with the _______ operator to query documents by BSON type.
  19. Each document in the __________ collection represents a distinct chunk of a file as represented in the GridFS store.
  20. GridFS uses a _________ index on the chunks collection for the files_id and n fields.
  21. If your driver has a version number of 2.9.1, What is the major version?
  22. Index keys that are of the _______ type are more efficiently stored in the index.
  23. MongoDB documents are composed of field-and-value pairs and have the following structure?
  24. MongoDB represents queries as ___________ objects.
  25. MongoDB uses the ________ notation to access the elements of an array and to access the fields of an embedded document.
  26. Object_Id is similar to _________ key in Relational Databases.
  27. Point out the correct statement.
  28. Point out the correct statement.
  29. Point out the correct statement.
  30. Point out the correct statement.
  31. Point out the correct statement.
  32. Point out the wrong statement.
  33. Point out the wrong statement.
  34. Point out the wrong statement.
  35. Point out the wrong statement.
  36. Point out the wrong statement.
  37. Point out the wrong statement.
  38. The ___ field contains the sequence number of the chunk.
  39. The ______ field is always the first field in the document.
  40. The _______ tool reads data from a MongoDB database and creates high fidelity BSON files.
  41. The _________ tool can populate a MongoDB database with the data from these BSON files.
  42. The __________ JavaScript shell and the MongoDB language drivers translate between BSON and the language-specific document representation.
  43. The $rename operator logically performs a _______ of both the old name and the new name.
  44. The GridFS index allows efficient retrieval of __________ using the files_id and n values.
  45. There is _________ byte counter in BSON, starting with a random value.
  46. To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.
  47. Updates that include _________ of field names may result in the reordering of fields in the document.
  48. When you query a GridFS store for a file, the _______ will reassemble the chunks as needed.
  49. Which of the following data type is depreciated?
  50. Which of the following query is used to generate a new ObjectId, use the ObjectId() constructor with no argument?
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!