WorksheetsExpress-MangoDB
Total questions: 30
Worksheet time: 18mins
________ is a back end web application framework for Node.js, it is fast, unopinionated and minimalist framework.
Emotional.js
Express.js
Nodemon
Doraemon
Creator of Node.js
Ryan Dahl
Ryan Bang
Ryan Agoncillo
Ryan Reynolds
Which is the correct syntax for Arrow Function?
->
<--!
=>
function arrow()
Meaning of the acronym "EJS" discussed on the Webinar
Enterprise Java Services
Embedded JavaScript
Enhance Jquery Syntax
Error Just Kidding
________ are the blocks of encapsulated code that communicates with an external application on the basis of their related functionality.
Application
Code
Dependencies
Modules
What module provides utilities for working with file and directory paths?
OS Module
Path Module
FS Module
HTTP Module
What module provides information about the computer's operating system?
OS Module
Path Module
FS Module
HTTP Module
What JavaScript Engine is used by Google Chrome?
Y8
Adobe Flash Player
Friv
V8
What is the right syntax for importing a module?
require()
function()
import()
module.import()
Do you need to know NodeJS before learning Express?
Yes
No
1.MongoDB is supported by
perl
PHP
python
all the above
2. MongoDB documents are represented as
DOCUMENT
XML
JSON
3.MongoDB supports dynamic schema design
true
false
both A and B
4.'$unset' is used with
Insert
update
delete
create
5.Decision tree is a ............. method
machine Learning
Unsupervised Learning
Supervised Learning
both A and B
6.which of the following MongoDB conditional operator is not a valid operator?
$lt
$lte
$ltu
$gt
7.R is a _______tool
Statistical
analytical
recursion
Rstudio
8.Core MongoDB operations are
Create,select update,delete
Create,Read update,delete
Create,Read, update,Drop
Create,update,delete
9.MongoDB is
RDBMS
key_value store
Object-oriented DBMS
Document-oriented DBMS
10. K-mean splits dataset into _______ of clusters.
whole numbers
decimal
rational numbers
fixed numbers
11. Regression model deals with______.
fixed values
numeric values
whole values
none of the above
12._______is a user based recommendation algorithm.
collaborative Filtering
correlation Filtering
coefficientFiltering
compare Filtering
13. Which command in MongoDB is equivalent to SQL Select?
Document ()
search ()
Find ( )
All the above
14.End nodes represented by_____
rectangle
squares
circles
triangles
15.Decision nodes commonly represented by _________.
circles
squares
triangle
rectangle
16.chance nodes represented by _____.
circle
rectangle
triangle
cube
17.MongoDB enforces attribute similarity across documents in a collection
false
true
18. ________is an indication of how frequently the items appear in the dataser.
transaction width
item set
item support count
association set
19.which one of the following is the correct command to insert data into MongoDB? Assume that document is a valid JSON document.
db.Students.insert().(document)
Students.insert(document)
db.Students.insert(document)
none of the above
20.Which of the following command provides you with a list of all the database in MongoDB ?
show db
show dbs
show all dbs
none of the above
