What does the express.static middleware do?

Serves static files from a directory

What happens if a client requests a page number that exceeds the total pages available?

Empty data array with valid pagination metadata

What should be included in pagination metadata in API responses?

Total items count plus navigation links and page information

What are route parameters in Express.js?

Named URL segments prefixed with : in route definitions

What is HATEOAS as it relates to pagination in RESTful APIs?

A way to include navigation links in API responses

What does MERN stand for? (e.g. MERN stack)

Mongo db, Express.js, React.js, Node.js

How can route-specific middleware be applied in Express.js?

By adding it as an argument before the route handler

What is the purpose of cursor-based pagination in APIs?

To provide consistent results even when data changes

Why is cursor-based pagination preferred for real-time data?

It works better with real-time data changes

What does REST stand for?

REpresentational State Transfer

What is the main disadvantage of offset-based pagination for large datasets?

Performance degrades with large offsets

Why would you use Express.js instead of plain Node.js for web development?

To reduce the amount of boilerplate code needed to set up a web server

How would you implement authentication middleware for protected routes in Express.js?

Using middleware that validates tokens before protected routes

What is special about error-handling middleware in Express.js?

It takes four parameters instead of three

HTTP status code 400 means...

Bad Request: The server couldn't understand the request

Ace books ballooned the popularity of the Lord of the Rings by...

Robin Hooding it up if the UK was the rich and the US was the poor, Illegally printing it and selling it on the cheap.

What is middleware in Express.js?

Functions that access the request-response cycle

Framework for Node.js that provides abstraction from Node's HTTP module.

What should be included in pagination metadata in API responses?

Total items count plus navigation links and page information

What does the multer middleware do in Express.js?

Parses multipart/form-data primarily used for file uploads

What is the primary difference between PUT and PATCH HTTP methods regarding updates?

PUT replaces the entire resource while PATCH applies partial modifications

What happens when an error is passed to the next() function?

Normal middleware is skipped and error-handling middleware is called

What is the purpose of cursor-based pagination in APIs?

To provide consistent results even when data changes

What's the correct pattern to handle errors from async middleware in Express?

Using a special asyncMiddleware wrapper

In large datasets why does offset-based pagination performance degrade with higher page numbers?

The database must still scan all skipped records

What is the event loop in Node.js and why is it important?

It enables asynchronous, non-blocking I/O operations

In cursor-based pagination what does the cursor typically represent?

A unique identifier pointing to the last retrieved item

What specific problem occurs if you don't call next() in middleware and don't send a response?

The request will hang indefinitely

Why might you use memory storage instead of disk storage in multer?

For temporary files that don't need persistence

When should you include the next error-handling middleware in an Express application?

After all other middleware and routes

For large datasets what is a recommended best practice for pagination?

Always use cursor-based pagination

studbud

Advanced Web Final Review

161 termsStudBud Administration

Imported from external platform

Flashcards161 cardsFPractice quizPHost liveL

Questions 161

Answers

1
What is the correct way to pass data between middleware functions?
Using the req object
Return values
WebSockets
Global variables
2
What does the express.static middleware do?
Processes static variables
Compresses responses
Serves static files from a directory
Creates static IP addresses
3
What happens if a client requests a page number that exceeds the total pages available?
Server crashes
400 Bad Request error
Empty data array with valid pagination metadata
404 Not Found error
4
What should be included in pagination metadata in API responses?
Only total items count
Only next and previous page links
Total items count plus navigation links and page information
Total items and page count only
5
What are route parameters in Express.js?
Named URL segments prefixed with : in route definitions
Query parameters after the ? in a URL
Configuration settings for routes
Request body parameters
6
What is HATEOAS as it relates to pagination in RESTful APIs?
A client-side pagination component
A pagination library
A way to include navigation links in API responses
A database optimization technique
7
What does MERN stand for? (e.g. MERN stack)
Mongoose, Express.js, React.js, Next.js
Monkeys eat really near
Masthead, Entry, Respond (res), null
Mongo db, Express.js, React.js, Node.js
8
How can route-specific middleware be applied in Express.js?
By placing it inside the route callback function
Using the middleware.route() method
By using router.registerMiddleware()
By adding it as an argument before the route handler
9
What is the purpose of cursor-based pagination in APIs?
To allow jumping to any page number
To improve database connection management
To reduce bandwidth usage
To provide consistent results even when data changes
10
How do you end a response (res) process without sending data?
res.""()
res.queueFree()
res.end()
res.fin()
11
What status code should be returned when a client requests a non-existent resource?
404 Not Found
401 Unauthorized
400 Bad Request
500 Server Error
12
Why is cursor-based pagination preferred for real-time data?
It works better with real-time data changes
It loads faster in all cases
It provides more metadata
It has better security features
13
What does REST stand for?
REady Send Tunnel
REpresentational State Transfer
REsentful Status Transport
REad, Save, Transmit
14
Which pagination approach provides the most consistent results when data changes during pagination?
Cursor-based pagination
Header-based pagination
Offset-based pagination
Page-based pagination
15
What is the main disadvantage of offset-based pagination for large datasets?
Requires special headers
Performance degrades with large offsets
Incompatible with SQL databases
Poor security
16
'/^[^\s@]+@[^\s@]+\.[^\s@]+$/' is an example of...
RegEx for urls
Query Parameters
RegEx for email addresses
RegEx for age
17
Why would you use Express.js instead of plain Node.js for web development?
Because my classmate is using it.
All of the above
Because my professor is using it.
To reduce the amount of boilerplate code needed to set up a web server
18
How would you implement authentication middleware for protected routes in Express.js?
Using middleware that validates tokens before protected routes
Using app.authenticate()
By checking authentication in each route handler
Using the express.auth package
19
What is special about error-handling middleware in Express.js?
It takes four parameters instead of three
It must be named handleError
It must be defined before all other middleware
It must return a Promise
20
HTTP status code 400 means...
Bad Request: The server couldn't understand the request
Created: A new resource was successfully created
Not Found: The requested resource doesn't exist
OK: Request succeeded
21
What HTTP status code should typically be returned for successful file uploads?
200 OK
204 No Content
202 Accepted
201 Created
22
Ace books ballooned the popularity of the Lord of the Rings by...
Utilizing novel approaches to marketing.
Robin Hooding it up if the UK was the rich and the US was the poor
Not stealing
Illegally printing it and selling it on the cheap.
23
What is middleware in Express.js?
Routing configuration files
Functions that access the request-response cycle
Database models
Frontend UI components
24
What is Express.js?
Frontend framework built on React.js.
HTML-spells cast without speaking.
Framework for Node.js that provides abstraction from Node's HTTP module.
A library that Node.js is built on that connects JS to C.
25
What should be included in pagination metadata in API responses?
Total items count plus navigation links and page information
Total items and page count only
Only total items count
Only next and previous page links
26
What does the multer middleware do in Express.js?
Parses multipart/form-data primarily used for file uploads
Validates file permissions
Creates download links
Compresses uploaded files
27
What HTTP status code should typically be returned for successful file uploads?
200 OK
202 Accepted
201 Created
204 No Content
28
What is the primary difference between PUT and PATCH HTTP methods regarding updates?
PUT is for creating while PATCH is for updating
PUT replaces the entire resource while PATCH applies partial modifications
PUT is faster while PATCH is more secure
PUT requires authentication while PATCH doesn't
29
What happens when an error is passed to the next() function?
The next middleware in the chain is called
The server crashes
Normal middleware is skipped and error-handling middleware is called
The request is automatically aborted
30
What is the purpose of cursor-based pagination in APIs?
To reduce bandwidth usage
To provide consistent results even when data changes
To improve database connection management
To allow jumping to any page number
31
What's the correct pattern to handle errors from async middleware in Express?
Using a special asyncMiddleware wrapper
Simply using async/await
Calling next() twice
Adding .catch() to all Promises
32
In large datasets why does offset-based pagination performance degrade with higher page numbers?
Database indexes cannot be used
API rate limits are reached
The database must still scan all skipped records
Memory consumption increases
33
What is the event loop in Node.js and why is it important?
It enables asynchronous, non-blocking I/O operations
It is built into the React Game Engine as an update loop
It DOMs a virtual render
It renders to a virtual DOM
34
The event loop allows Node.js to handle many concurrent connections with minimal resource overhead
True
False
35
What technique should be used to handle asynchronous errors in Express middleware?
Always use Promises
Wrap everything in setImmediate()
Callbacks with error-first pattern
Try-catch with next(error)
36
In cursor-based pagination what does the cursor typically represent?
Connection timeout settings
User session information
A unique identifier pointing to the last retrieved item
The total page count
37
What Express.js method directly attaches middleware to a specific HTTP method?
app.route()
app.get()
app.set()
app.use()
38
Which pagination approach requires unique sortable identifiers to function properly?
Cursor-based pagination
Page-based pagination
Offset-based pagination
Manual pagination
39
What specific problem occurs if you don't call next() in middleware and don't send a response?
An error is thrown automatically
The application crashes
The request will hang indefinitely
The next middleware runs automatically
40
What parameter combination is typically used in offset-based pagination?
start and end
offset and limit
first and last
page and count
41
How do you pass control to the next middleware in the chain?
Continue()
next()
return true
Pass()
42
Why might you use memory storage instead of disk storage in multer?
Memory storage is always preferred
For faster upload speeds in all cases
For automatic image processing
For temporary files that don't need persistence
43
When should you include the next error-handling middleware in an Express application?
Multiple times throughout the chain
After all other middleware and routes
At the beginning of the middleware chain
As the first route definition
44
The event loop in Node offloads operations to the system kernel when possible.
True
False
45
For large datasets what is a recommended best practice for pagination?
Always use offset pagination
Always use cursor-based pagination
Avoid pagination completely
Implement infinite scrolling
46
In Express.js, res.cookie() gets cookie information.
True
False
47
Which HTTP method correlates to the CRUD operation Update?
PUT
PATCH
POST
GET
48
What does EJS stand for?
Embedded JavaScript
Express JavaScript
Express Jank Stack
Express Java Search
49
Which pagination approach provides the most consistent results when data changes during pagination?
Header-based pagination
Page-based pagination
Cursor-based pagination
Offset-based pagination
50
How can you restrict file upload types in multer?
Using the accept parameter
Using the validateType method
Using the fileFilter function
Setting content-type restrictions
51
What HTTP method is most appropriate for creating a new resource in a RESTful API?
GET
POST
DELETE
PUT
52
Which parameter is typically used in page-based pagination to specify the number of items per page?
limit
offset
per_page
skip
53
What happens if you try to send a file larger than the limit set in multer?
The upload is silently rejected
An error is thrown that can be handled in your route
The file uploads partially
The server automatically restarts
54
What is the main purpose of pagination in RESTful APIs?
Improve performance
Enhance security
Add visual appeal
Manage large datasets in manageable chunks
55
Which HTTP method correlates to the CRUD operation Delete?
POST
GET
DELETE
PUT
56
What is the significance of middleware execution order in Express.js?
Middleware executes in the exact order registered with earlier middleware
It determines which middleware can access databases
It determines which server handles the request
It has no significance since middleware runs in parallel
57
What are route parameters in Express.js?
Named URL segments prefixed with : in route definitions
Request body parameters
Query parameters after the ? in a URL
Configuration settings for routes
58
How to you implement file-based storage in Express.js/Node.js?
fs
fp
file-path
path
59
What specific problem occurs if you don't call next() in middleware and don't send a response?
The next middleware runs automatically
The request will hang indefinitely
An error is thrown automatically
The application crashes
60
How do you pass control to the next middleware in the chain?
return true
Pass()
next()
Continue()
61
Who created Node?
Roll Dole
Rahl Dahl
Ryan Dahl
Ryan Dumont
62
What happens if a client requests a page number that exceeds the total pages available?
404 Not Found error
Server crashes
Empty data array with valid pagination metadata
400 Bad Request error
63
What database optimization is most important for efficient pagination queries?
Indexing on sorted fields
Connection pooling
Stored procedures
Database sharding
64
What parameter must be included in a file upload form's enctype attribute for multer to work?
text/plain
multipart/form-data
application/json
application/x-www-form-urlencoded
65
What is the key difference between app.use() and app.get() in Express.js?
app.use() is deprecated
app.get() is faster
app.use() applies to any HTTP method while app.get() only for GET requests
app.use() can only be used for error handling
66
What is the main purpose of pagination in RESTful APIs?
Add visual appeal
Improve performance
Enhance security
Manage large datasets in manageable chunks
67
What is the difference between disk storage and memory storage in multer?
Disk storage is more secure
Memory storage stores files in RAM instead of writing to disk
Disk storage is faster
There is no difference
68
What's the correct pattern to handle errors from async middleware in Express?
Calling next() twice
Using a special asyncMiddleware wrapper
Simply using async/await
Adding .catch() to all Promises
69
What does this do: app.use(express.static('public'));?
Creates and assigns a public folder to the current user
Serves static files in an Express.js app (from /public)
Builds an Express.js app from the public folder
Capture static changes in the offline web
70
What is express.json() middleware used for?
Sending JSON responses
Parsing incoming JSON payloads in request bodies
Converting JSON to XML
Creating JSON web tokens
71
What is an appropriate maximum limit for items per page to prevent performance issues?
10 items
100 items
No limit is needed
1000 items
72
Which of these is a valid way to register middleware for a specific route in Express?
app.route('/users').middleware(auth)
None of the above
app.get('/users' authMiddleware requestHandler)
app.use('/users' authMiddleware)
73
How can you restrict file upload types in multer?
Using the fileFilter function
Using the accept parameter
Setting content-type restrictions
Using the validateType method
74
In cursor-based pagination what does the cursor typically represent?
A unique identifier pointing to the last retrieved item
User session information
The total page count
Connection timeout settings
75
What is the best approach for handling large file uploads in Express.js?
Using streams instead of loading the entire file into memory
Client-side compression
Multiple smaller uploads
Increasing the server memory
76
Why is the order of middleware registration important in Express.js?
All of the above
Early ends to request-response cycle stops later middleware from running
Earlier middleware sets up data that later middleware may depend on
Route-specific middleware only executes if a matching route is found
77
What are the security risks of allowing file uploads without proper validation?
Only privacy concerns
Only copyright violations
Only disk space concerns
Potential for malware uploads and server vulnerabilities
78
What is express.json() middleware used for?
Sending JSON responses
Converting JSON to XML
Parsing incoming JSON payloads in request bodies
Creating JSON web tokens
79
What does the multer middleware do in Express.js?
Creates download links
Parses multipart/form-data primarily used for file uploads
Compresses uploaded files
Validates file permissions
80
In Express.js, res.cookie() sets cookie information.
False
True
81
What are the parameters of a standard Express middleware function?
request only
request response next
(request response)
(error request response next)
82
HTTP status code 200 means...
Created: A new resource was successfully created
None of the Above
OK: Request succeeded
Not Found: The requested resource doesn't exist
83
What Express.js method directly attaches middleware to a specific HTTP method?
app.set()
app.route()
app.get()
app.use()
84
What parameter must be included in a file upload form's enctype attribute for multer to work?
application/x-www-form-urlencoded
multipart/form-data
application/json
text/plain
85
The event loop prevents Node.js from handling concurrent connections to maximize resource overhead.
True
False
86
What is the key difference between app.use() and app.get() in Express.js?
app.get() is faster
app.use() is deprecated
app.use() applies to any HTTP method while app.get() only for GET requests
app.use() can only be used for error handling
87
What is the correct way to pass data between middleware functions?
Using the req object
Return values
WebSockets
Global variables
88
HTTP status code 201 means...
Created: A new resource was successfully created
Not Found: The requested resource doesn't exist
None of the Above
OK: Request succeeded
89
What is the main purpose of the express.urlencoded() middleware?
Encoding response data
Parsing URL parameters
Parsing URL-encoded form data
Creating properly encoded URLs
90
What does npm stand for?
Node Placed Marker
Node Package Manager
Negative Performance Matters
Neglected Powers Men
91
How do you create custom filenames for uploaded files using multer?
Using the rename() method
By renaming files after upload
Using the filename function in diskStorage configuration
With the setFilename() function
92
When configuring multer what is the purpose of storage settings?
To specify API authentication
To enable compression
To set file type restrictions
To determine where and how files are stored
93
How would you implement authentication middleware for protected routes in Express.js?
Using middleware that validates tokens before protected routes
Using app.authenticate()
Using the express.auth package
By checking authentication in each route handler
94
Ryan Dahl (node creator) also built npm (node package manager).
False
True
95
'/users?role=admin&status=active' is a URL example of...
Object Parameters
Route Parameters
Query Parameters
Para-paramaters
96
params, query, body, headers, method, path, cookies, ip, and route are...
All of the Above
Examples of good words to use plant names
Properties of the Express.js app object (app)
Properties of the Express.js request object (req)
97
What query parameters are typically used in page-based pagination?
page and per_page
from and to
offset and limit
start and count
98
What was the name of the well Odin cast his eye into?
Momor
Mimir
Mordor
Memer
99
What HTTP method is most appropriate for creating a new resource in a RESTful API?
PUT
DELETE
POST
GET
100
HTTP Status codes that start with a 4 (4xx) are...
Informational: The request was received and is being processed
Client Error: The request cannot be fulfilled due to client-side issues
Server Error: Failed to fulfill a valid request due to server-side issues
Success: The request was successfully received, understood, and accepted
101
What query parameters are typically used in page-based pagination?
from and to
page and per_page
start and count
offset and limit
102
What database optimization is most important for efficient pagination queries?
Stored procedures
Connection pooling
Indexing on sorted fields
Database sharding
103
The event loop in Node offloads operations to Express when possible.
True
False
104
HTTP Status codes that start with a 1 (1xx) are...
Success: The request was successfully received, understood, and accepted
Server Error: Failed to fulfill a valid request due to server-side issues
Client Error: The request cannot be fulfilled due to client-side issues
Informational: The request was received and is being processed
105
What is the main disadvantage of offset-based pagination for large datasets?
Poor security
Incompatible with SQL databases
Performance degrades with large offsets
Requires special headers
106
What is special about error-handling middleware in Express.js?
It must return a Promise
It must be named handleError
It must be defined before all other middleware
It takes four parameters instead of three
107
What is HATEOAS as it relates to pagination in RESTful APIs?
A pagination library
A client-side pagination component
A way to include navigation links in API responses
A database optimization technique
108
How does offset-based pagination typically work?
Uses a cursor token to mark position
Skips a specified number of records before retrieving results
Always starts from the most recent items
Requires special database support
109
What does HATEOAS stand for?
Nothing
Everything
Hypermedia as the Example of Application Server
Hypermedia as the Engine of Application State
110
What happens if you try to send a file larger than the limit set in multer?
An error is thrown that can be handled in your route
The server automatically restarts
The file uploads partially
The upload is silently rejected
111
Which HTTP status code should be returned when pagination parameters exceed limits?
400 Bad Request
200 OK
500 Server Error
404 Not Found
112
Which parameter is typically used in page-based pagination to specify the number of items per page?
offset
skip
limit
per_page
113
For large datasets what is a recommended best practice for pagination?
Implement infinite scrolling
Always use cursor-based pagination
Avoid pagination completely
Always use offset pagination
114
Which module is the most widely used for handling file uploads in Express.js?
multer
formdata
express-upload
upload
115
HTTP status code 500 means...
Created: A new resource was successfully created
OK: Request succeeded
None of the Above
Not Found: The requested resource doesn't exist
116
When should you include the next error-handling middleware in an Express application?
After all other middleware and routes
At the beginning of the middleware chain
Multiple times throughout the chain
As the first route definition
117
Which HTTP status code should be returned when pagination parameters exceed limits?
404 Not Found
400 Bad Request
200 OK
500 Server Error
118
What is the purpose of the limits option in multer configuration?
To set maximum file size and number of files
To restrict file types
To limit upload frequency
To restrict which IP addresses can upload
119
Which of these statements about Express.js middleware is TRUE?
Middleware cannot end the request-response cycle
Middleware must always call next()
Middleware always receives exactly three parameters
Middleware functions can modify the request and response objects
120
What happens when an error is passed to the next() function?
The server crashes
The next middleware in the chain is called
The request is automatically aborted
Normal middleware is skipped and error-handling middleware is called
121
What status code should be returned when a client requests a non-existent resource?
400 Bad Request
500 Server Error
404 Not Found
401 Unauthorized
122
What is middleware in Express.js?
Routing configuration files
Functions that access the request-response cycle
Frontend UI components
Database models
123
What technique should be used to handle asynchronous errors in Express middleware?
Callbacks with error-first pattern
Always use Promises
Try-catch with next(error)
Wrap everything in setImmediate()
124
How do you create custom filenames for uploaded files using multer?
By renaming files after upload
Using the filename function in diskStorage configuration
With the setFilename() function
Using the rename() method
125
What is formidable and how does it compare to multer?
A frontend form validator unrelated to Express
A security tool that works with multer
A database interface for uploaded files
An alternative file upload middleware with different API than multer
126
app.use() in Express.js is an example of
Third-party middleware
application-level middleware (global)
router-level middleware (express.Router() bound)
Custom middleware
127
What are the parameters of a standard Express middleware function?
(error request response next)
request only
(request response)
request response next
128
Which HTTP method correlates to the CRUD operation Create?
POST
GET
PUT
PATCH
129
What is an appropriate maximum limit for items per page to prevent performance issues?
1000 items
No limit is needed
100 items
10 items
130
Middleware in Express.js has access to the request and response objects (req & res), and the next middleware function.
False
True
131
Which HTTP method correlates to the CRUD operation Read?
POST
GET
PUT
PATCH
132
send(), json(), status(), render(), and sendFile() are examples of...
Typical naming for React methods
Response methods built into Express.js
Request Methods
Request objects
133
What are the security risks of allowing file uploads without proper validation?
Only privacy concerns
Only disk space concerns
Potential for malware uploads and server vulnerabilities
Only copyright violations
134
What does the express.static middleware do?
Processes static variables
Compresses responses
Creates static IP addresses
Serves static files from a directory
135
The event loop in Node collects operations that need to be performed (e.g. file reads, network requests)
True
False
136
How can route-specific middleware be applied in Express.js?
By placing it inside the route callback function
By adding it as an argument before the route handler
By using router.registerMiddleware()
Using the middleware.route() method
137
What is the purpose of the limits option in multer configuration?
To restrict which IP addresses can upload
To set maximum file size and number of files
To restrict file types
To limit upload frequency
138
What is hypermedia?
All of the Above
an extension to hypertext providing multimedia functions
a laugh factory
an elon joint
139
HTTP Status codes that start with a 2 (2xx) are...
Success: The request was successfully received, understood, and accepted
Client Error: The request cannot be fulfilled due to client-side issues
Server Error: Failed to fulfill a valid request due to server-side issues
Informational: The request was received and is being processed
140
Which of these is a valid way to register middleware for a specific route in Express?
None of the above
app.route('/users').middleware(auth)
app.get('/users' authMiddleware requestHandler)
app.use('/users' authMiddleware)
141
Who introduced the principles of the REST architectural style in a 2000 doctoral dissertation?
Rory McComputerFace
Kent Beck
Ray Fields
Roy Fielding
142
What is formidable and how does it compare to multer?
A security tool that works with multer
An alternative file upload middleware with different API than multer
A frontend form validator unrelated to Express
A database interface for uploaded files
143
How does offset-based pagination typically work?
Always starts from the most recent items
Uses a cursor token to mark position
Requires special database support
Skips a specified number of records before retrieving results
144
What is the difference between disk storage and memory storage in multer?
Disk storage is faster
There is no difference
Memory storage stores files in RAM instead of writing to disk
Disk storage is more secure
145
What is the primary difference between PUT and PATCH HTTP methods regarding updates?
PUT is for creating while PATCH is for updating
PUT is faster while PATCH is more secure
PUT replaces the entire resource while PATCH applies partial modifications
PUT requires authentication while PATCH doesn't
146
When configuring multer what is the purpose of storage settings?
To enable compression
To determine where and how files are stored
To specify API authentication
To set file type restrictions
147
What is the main purpose of the express.urlencoded() middleware?
Creating properly encoded URLs
Parsing URL-encoded form data
Encoding response data
Parsing URL parameters
148
What parameter combination is typically used in offset-based pagination?
first and last
page and count
start and end
offset and limit
149
Which of these statements about Express.js middleware is TRUE?
Middleware always receives exactly three parameters
Middleware cannot end the request-response cycle
Middleware must always call next()
Middleware functions can modify the request and response objects
150
What is the best approach for handling large file uploads in Express.js?
Using streams instead of loading the entire file into memory
Client-side compression
Multiple smaller uploads
Increasing the server memory
151
HTTP status code 404 means...
OK: Request succeeded
Created: A new resource was successfully created
Bad Request: The server couldn't understand the request
Not Found: The requested resource doesn't exist
152
Nouns are preferred over verbs when...
When naming resources in a RESTful API
When installing cable
When speaking in the nominative form.
When avoiding action words
153
Which pagination approach requires unique sortable identifiers to function properly?
Cursor-based pagination
Page-based pagination
Manual pagination
Offset-based pagination
154
Which module is the most widely used for handling file uploads in Express.js?
upload
express-upload
multer
formdata
155
Which of the following is NOT an HTTP method?
OPTIONS
PUSH
POST
GET
156
In large datasets why does offset-based pagination performance degrade with higher page numbers?
Database indexes cannot be used
The database must still scan all skipped records
Memory consumption increases
API rate limits are reached
157
Why might you use memory storage instead of disk storage in multer?
For temporary files that don't need persistence
For automatic image processing
Memory storage is always preferred
For faster upload speeds in all cases
158
Why is cursor-based pagination preferred for real-time data?
It loads faster in all cases
It has better security features
It provides more metadata
It works better with real-time data changes
159
How does Express.js extend the capabilities of Node.js?
Simplifies the complex routing logic required in vanilla Node.js.
Provides higher-level abstraction over Node's core HTTP module
Support for template engines simplifies generating HTML content dynamically
All of the above
160
HTTP Status codes that start with a 5 (5xx) are...
Success: The request was successfully received, understood, and accepted
Informational: The request was received and is being processed
Client Error: The request cannot be fulfilled due to client-side issues
Server Error: Failed to fulfill a valid request due to server-side issues
161
What is the difference between application-level and router-level middleware?
Application applies to all routes while router applies to specific routes
Router middleware can only handle GET requests
Application runs on server start while router runs for each request
There is no difference

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