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Express.js MCQ (Multiple Choice Questions)

1) Who is credited as the developer of Express.js?

1. Larry wall
2. Rich Hickey
3. TJ Holowaychuk
4. Rob Pike

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2) Which of the following are the core features of the Express framework?

1. It allows us to set up middleware to respond to HTTP Requests.
2. It defines a routing table that can work as per HTTP Method and URL.
3. It is used to render the HTML pages dynamically.
4. All of the above.

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3) In which of the following year was Express.js initially released?

1. November 2010
2. November 2011
3. December 2010
4. December 2011

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4) What will be the output of the following code in the console?

1. Error
2. Zeus
3. undefined
4. sueZ

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5) What is the way to store local variables that can be accessed within the application?

1. Using Config file
2. Using database
3. Using app.locals
4. Using app.storage

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6) In combination with a request method, root paths define the endpoints at which requests can be made. Which of the following are valid forms of route path?

1. strings
2. string patterns
3. regular expressions
4. All of the above

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7) Where are the captured values populated regarding the route parameters?

1. req.data
2. app.locals
3. req.params
4. All of the above

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8) How is it possible to create chainable route handlers for a route path in Express.js?

1. Using app.route()
2. Using app.routes()
3. Using app.router()
4. Using app.routing()

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9) Which of the following function arguments are available to Express.js Route handlers?

1. req – the request object
2. res – the response object
3. next
4. All of the above

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10) Which of the following is the Scaffolding in Express.js?

1. Yeoman
2. Express application generator
3. Handler functions
4. Both A & B

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11) In Express.js, the method app.all(path, callback [, callback …]) can accept all HTTP methods:

1. True
2. False
3. Insufficient data
4. None of the above

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12) Which of the following is a middleware in Express.js?

1. function(req){ }
2. method(req){ }
3. function(req,res,next){ }
4. method(req,res,next){ }

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13) Which of the following is the correct statement in the context of Express.js?

1. Express is a minimal and flexible Node.js web application framework.
2. Express is a minimal and flexible React.js web application framework.
3. Express is a minimal and flexible Redux.js web application framework.
4. Express is a minimal and flexible Angular.js web application framework.

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14) Which of the following is the correct syntax to use Express.js in Node?

1. var = require(‘express’)();
2. var_require(‘express’)();
3. var app = require(‘express’)();
4. None of the above.

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15) What is the meaning of templating in Express.js?

1. Pug
2. EJS
3. Mustache
4. All of the above.

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16) To use Mongo with Express.js, we need a client API for node.

1. TRUE
2. FALSE
3. Can be true or false
4. Cannot say

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17) Which of the following facilitates us to create a skeleton for a web application easily?

1. Authentication
2. APIs
3. Debugging
4. Scaffolding

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18) Which of the following is a middleware that parses cookies attached to the client request object?

1. cookie
2. cookies
3. cookie-parser
4. None of the above

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19) The method of using values is called?

1. filters
2. interpolation
3. inheritance
4. includes

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20) Which of the following command is used to check the current version of NPM?

1. nmp –ver
2. npm –version
3. npm help
4. None of the above.

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21) In Express.js, the method app.all(path, callback [, callback …]) is:

1. True
2. False
3. Cannot say

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22) Which of the following method requests that the server accept the data enclosed in the request to modify an existing object identified by the URI?

1. GET
2. DELETE
3. PUT
4. POST

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23) Which of the following statement is correct in the case of backlog arguments?

1. A port number on which the server should accept incoming requests.
2. The backlog argument is the name of the domain.
3. The maximum number of queued pending connections.
4. An asynchronous function is called when the server starts listening for requests.

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24) Which of the following was the earlier name of the Pug?

1. Terse
2. DRY
3. Express
4. Jade

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25) Which of the following function is used to specify what to do when a get request at the given route is called?

1. app.get(route, callback)
2. get(route, callback)
3. js.get(route, callback)
4. fun.get(route, callback)

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26) Where are the captured values populated regarding route parameters?

1. app.locals object
2. req.data object
3. req.params object
4. None of the above.

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27) Cookies are the complex, large files/data sent to the server with a client request and stored on the server-side.

1. This statement is true.
2. This statement is false.
3. Can be true or false
4. Cannot say.

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28) HTTP is stateless.

1. This statement is true.
2. This statement is false.
3. It can be true or false.
4. Cannot say.

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