MongoDB Introduction to MongoDB MCQ Objective Quiz

MongoDB

Introduction to MongoDB has 48 Questions

Which of the following language is MongoDB written in

Javascript

C

C++

All of the mentioned

Point out the correct statement

MongoDB is classified as a NoSQL database

MongoDB favours XML format more than JSON

MongoDB is column oriented database store

All of the mentioned

Which of the following format is supported by MongoDB ?

SQL

XML

BSON

All of the mentioned

MongoDB Queries can return specific fields of documents which also include user-defined __________ functions.

Javascript

C

C++

All of the mentioned

Point out the wrong statement.

Secondary indices is not available in MongoDB

MongoDB supports search by field, range queries, regular expression searches

MongoDB can store the business subject in the minimal number of documents

All of the mentioned

Initial release of MongoDB was in the year

2000

2005

2009

2011

MongoDB is a _________ database that provides high performance, high availability, and easy scalabilit

graph

key value

document

All of the mentioned

Dynamic schema in MongoDB makes ____________ easier for application

inheritance

polymorphism

encapsulation

None of the mentioned

Dynamic schema in MongoDB makes ____________ easier for application

inheritance

polymorphism

encapsulation

None of the mentioned

MongoDB has been adopted as ________ software by a number of major websites and service

frontend

backend

proprietary

All of the mentioned

With ________, MongoDB supports a complete backup solution and full deployment monitorin

MMS

AMS

CMS

DMS

Which of the following pattern is best for static trees that do not change ?

Child

Parent

Root

None of the mentioned

Point out the correct statement :

$regex is used for regular expression pattern matches

$like is used for regular expression pattern matches

$reg is used for regular expression pattern matches

All of the mentioned

Point out the correct statement :

An array with a large number of elements will incur greater indexing costs on insertion

An array with a large number of elements will incur smaller indexing costs on updates

An array with a small number of elements will incur greater indexing costs on insertion

None of the mentioned

________ indexes can include any field whose value is a string or an array of string elements.

text

string

char

None of the mentioned

Which of the following is related to document that provide support for synonym or related queries in the application layer ?

Stemming

Synonyms

Ranking

None of the mentioned

Which of the following is related to document that do not provide a way to weight results?

Stemming

Synonyms

Ranking

None of the mentioned

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

number

strings

character

None of the mentioned

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

Stemming

Synonyms

Ranking

None of the mentioned

___________ bulk indexes may be more efficient for some kinds of content and workloads in real time.

Synchronous

Asynchronous

Unique

None of the mentioned

Which of the following operations are atomic on document level ?

update

remove

findAndModify

All of the mentioned

hich of the following query is used to generate a new ObjectId, use the ObjectId() constructor with no argument

x = ObjectIdAdd()

x = addObjectId()

x = ObjectId()

None of the mentioned

he GridFS index allows efficient retrieval of __________ using the files_id and n values

chunks

files

bson

None of the mentioned

Object_Id is similar to _________ key in Relational Databases

primary

secondary

composite

All of the mentioned

Point out the correct statement :

ObjectIds are small, likely unique, fast to generate, and ordered

ObjectIds are large, likely unique, and ordered

ObjectIds values consists of 18-bytes

All of the mentioned

Which of the field is reserved for use as a primary key ?

_id

_uid

_uuid

All of the mentioned

In the mongo shell, you can access the creation time of the ObjectId, using the ______ method..

getTime()

getTimestamp()

Timestamp()

None of the mentioned

Point out the wrong statement :

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

None of the mentioned

To ensure functioning replication, do not store values that are of the _______ regular expression type in the _id field.

JSON

XML

JScript

None of the mentioned

The ______ field is always the first field in the document.

_id

id

Ob_id

None of the mentioned

GridFS uses a _________ index on the chunks collection for the files_id and n fields.

unique

single

non unique

None of the mentioned

A query may include a ___________ that specifies the fields from the matching documents to return.

selection

projection

union

None of the mentioned

Point out the correct statement.

Secondary indexes allow applications to store a view of a portion of the collection in an efficient data structure

MongoDB has full support for secondary indexes

Most indexes store an ordered representation of all values of a field or a group of fields

All of the mentioned

MongoDB stores all documents in :

tables

collections

rows

All of the mentioned

In MongoDB, _________ operations modify the data of a single collection:

CRUD

GRID

READ

All of the mentioned

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

number

strings

character

None of the mentioned

Point out the wrong statement :

Indexes cannot enforce uniqueness in collection

CRUD stands for create, read, update, and delete

CRUD application is the most simplest application

All of the mentioned

Which of the following operation adds a new document to the users collection ?

add

insert

truncate

drop

Which of the following is related to document that provide support for synonym or related queries in the application layer ?

Stemming

Synonyms

Ranking

None of the mentioned

Which of the following preference determines how the client direct read operations to the set ?

read

write

update

delete

Point out the correct statement :

An array with a large number of elements will incur greater indexing costs on insertion

An array with a large number of elements will incur smaller indexing costs on updates

An array with a small number of elements will incur greater indexing costs on insertion

None of the mentioned

___________ bulk indexes may be more efficient for some kinds of content and workloads in real time.

Synchronous

Asynchronous

Unique

None of the mentioned

Which of the following operations are atomic on document level ?

update

remove

findAndModify

All of the mentioned

Point out the correct statement :

$regex is used for regular expression pattern matches

$like is used for regular expression pattern matches

$reg is used for regular expression pattern matches

All of the mentioned

Which of the following pattern is best for static trees that do not change ?

Child

Parent

Root

None of the mentioned

Which of the following pipeline is used for aggregation in MongoDB ?

data processing

information processing

knowledge processing

None of the mentioned

MongoDB process collection of documents using _________ operation .

Hbase

Hive

Map-reduce

None of the mentioned

Applications can also control the behavior of write operations using _______ concern.

read

write

truncate

All of the mentioned