MongoDB

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