NGINX Web Server: Comprehensive Guide for Beginners

Question 1

What is a distinguishing characteristic of the NGINX web server?

Accepted Answer

Event-driven architecture

Answer

Integrated caching

Answer

Support for multiple programming languages

Question 2

Which directive is used to create a location block that matches specific URI patterns?

Accepted Answer

location

Answer

path

Answer

uri

Answer

block

Question 3

What is the primary function of the 'proxy_pass' directive?

Accepted Answer

To forward client requests to a backend server

Answer

To rewrite request URIs

Answer

To enable caching of responses

Answer

To load balance requests across multiple servers

Question 4

Which NGINX module is used to provide SSL/TLS encryption and decryption?

Accepted Answer

ngx_http_ssl_module

Answer

ngx_http_proxy_module

Answer

ngx_http_gzip_module

Answer

ngx_http_auth_basic_module

Question 5

What is the purpose of a reverse proxy server?

Accepted Answer

To act as an intermediary between clients and backend servers

Answer

To improve response times by caching content

Answer

To enhance security by load balancing requests

Answer

To provide authentication and authorization services

Question 6

What is the purpose of the 'error_page' directive?

Accepted Answer

To customize error pages for specific HTTP status codes

Answer

To redirect users to a different URL in case of an error

Answer

To log detailed error messages to a file

Answer

To display a generic error page for all HTTP status codes

Question 7

What does the 'worker_processes' directive control?

Accepted Answer

The number of worker processes spawned by NGINX

Answer

The amount of memory allocated to each worker process

Answer

The maximum number of simultaneous client connections

Answer

The CPU affinity for worker processes

Question 8

What is the NGINX configuration file called?

Accepted Answer

nginx.conf

Answer

nginx.conf.default

Answer

http.conf

Answer

httpd.conf

Question 9

Which NGINX directive is used for URL redirection?

Accepted Answer

rewrite

Answer

location

Answer

proxy_pass

Answer

server_name

Question 10

What is the purpose of the error_page directive in an NGINX configuration?

Accepted Answer

To customize error messages

Answer

To redirect requests to a different page

Answer

To log error details

Answer

To block access to specific URLs

Question 11

Which of the following NGINX modules is primarily used to enhance security?

Accepted Answer

ModSecurity

Answer

GeoIP

Answer

brotli

Answer

pagespeed

Question 12

Which command is used to validate an NGINX configuration?

Accepted Answer

nginx -t

Answer

nginx -v

Answer

nginx -c

Answer

nginx -s

Question 13

What is the default port used by NGINX?

Accepted Answer

80

Answer

443

Answer

8080

Answer

3306

Question 14

Which directive in the NGINX configuration file is used to specify the root directory for serving static files?

Accepted Answer

root

Answer

location

Answer

server_name

Answer

listen

Question 15

What is the purpose of the 'upstream' block in an NGINX configuration file?

Accepted Answer

To define a group of servers for load balancing

Answer

To specify the location of static files

Answer

To handle authentication

Answer

To configure error handling

Question 16

What is the purpose of using a rewrite rule in NGINX?

Accepted Answer

To modify incoming requests

Answer

To handle errors

Answer

To cache responses

Answer

To load balance servers

Question 17

Which command is used to test the NGINX configuration file for errors?

Accepted Answer

nginx -t

Answer

nginx -c

Answer

nginx -v

Answer

nginx -a

Question 18

What is the primary purpose of a 'location' block in NGINX configuration?

Accepted Answer

To define the root directory for a specific URL path

Answer

To specify access control rules for different users

Answer

To configure error pages for specific HTTP status codes

Answer

To enable caching for static content

Question 19

Which directive is used in NGINX to set the root directory for a specific URL path?

Accepted Answer

root

Answer

document_root

Answer

www_root

Answer

base_dir

Question 20

Which of the following is a valid HTTP status code used to redirect a request to a different URL?

Accepted Answer

301

Answer

200

Answer

404

Answer

500

Question 21

Which module is commonly used to enable HTTPS support in NGINX?

Accepted Answer

http_ssl_module

Answer

proxy_ssl_module

Answer

headers_module

Answer

rewrite_module

Question 22

What is the primary function of the 'rewrite' directive in NGINX?

Accepted Answer

To modify the request URL before it is processed

Answer

To redirect a request to a different URL

Answer

To set response headers

Answer

To control access to specific sections of the website

Question 23

What is the purpose of the 'stub_status' module in NGINX?

Accepted Answer

To display real-time server statistics

Answer

To enable remote management of NGINX

Answer

To monitor the performance of individual requests

Answer

To generate log files for troubleshooting

Question 24

Which of the following is **NOT** a core component of NGINX?

Accepted Answer

Database server

Answer

Reverse proxy

Answer

Load balancer

Answer

Web cache

Question 25

What is meant by a directive in NGINX configuration?

Accepted Answer

A line of code that defines server behavior

Answer

A type of module

Answer

A virtual host

Answer

A programming script

Question 26

Out of the given location matching patterns, which one is the most specific?

Accepted Answer

/*.php$

Answer

/

Answer

/index.html

Answer

/users/*

Question 27

What is the function of a proxy_pass directive?

Accepted Answer

Forwarding requests to another server

Answer

Authenticating users

Answer

Caching responses

Answer

Compressing content

Question 28

Which NGINX module is used for implementing rate limiting?

Accepted Answer

ngx_http_limit_req_module

Answer

ngx_http_access_module

Answer

ngx_http_rewrite_module

Answer

ngx_http_ssl_module

Question 29

What is NGINX's default listening port?

Accepted Answer

80

Answer

443

Answer

8080

Answer

4433

Question 30

What is the main purpose of a gzip filter in NGINX?

Accepted Answer

Compressing responses

Answer

Encrypting responses

Answer

Caching responses

Answer

Rewriting responses

Question 31

What is the purpose of the error_page directive in NGINX?

Accepted Answer

Specifying custom error pages for specific status codes

Answer

Logging error messages

Answer

Redirecting users to different pages

Answer

Blocking access to certain pages

Question 32

Which directive in an NGINX configuration file is used to define the default settings for the entire server?

Accepted Answer

server

Answer

location

Answer

http

Answer

include

Question 33

What is the primary function of the `listen` directive in an NGINX configuration file?

Accepted Answer

Specifies the IP address and/or port on which NGINX accepts connections

Answer

Defines the maximum number of concurrent connections allowed

Answer

Configures SSL/TLS encryption

Answer

Sets the default document root for the server

Question 34

Which of the following is NOT a benefit of using NGINX as a reverse proxy?

Accepted Answer

Diminished security features

Answer

Enhanced performance and scalability

Answer

Simplified load balancing

Answer

Reduced complexity

Question 35

Which of the following is NOT a valid value for the `server_name` directive in NGINX?

Accepted Answer

A port number

Answer

A domain name

Answer

A regular expression

Answer

An IP address

Question 36

What is the primary function of the `rewrite` directive in NGINX?

Accepted Answer

Modifies the path of a request

Answer

Redirects users to a different URL

Answer

Caches responses

Answer

Compresses responses

Question 37

To specify the default location for serving static files in NGINX, which directive should you use?

Accepted Answer

root

Answer

directory

Answer

location

Answer

path

Question 38

Which NGINX directive allows you to rewrite incoming URLs based on specific conditions?

Accepted Answer

rewrite

Answer

location

Answer

if

Answer

try_files

Question 39

NGINX uses the __________ module to distribute incoming requests across multiple backend servers.

Accepted Answer

upstream

Answer

load_balancer

Answer

proxy_pass

Answer

balancer

Question 40

By default, NGINX listens for incoming connections on port:

Accepted Answer

80

Answer

8080

Answer

22

Answer

443

Question 41

Which NGINX directive is used to restrict the maximum number of concurrent connections to the server?

Accepted Answer

limit_conn

Answer

limit_rate

Answer

proxy_connect_timeout

Answer

client_max_body_size

Question 42

To enable GZIP compression in NGINX and improve web performance, use the directive:

Accepted Answer

gzip

Answer

deflate

Answer

compress

Answer

brotli

Question 43

Which type of NGINX log file records information about failed requests and errors?

Accepted Answer

Error log

Answer

SSL error log

Answer

System log

Answer

Access log

Question 44

The NGINX directive used to present a customized error page when an error occurs is:

Accepted Answer

error_page

Answer

status

Answer

fail

Answer

error

Question 45

What is the primary function of NGINX as a web server?

Accepted Answer

Serving static content and acting as a reverse proxy.

Answer

Compiling and executing server-side scripts.

Answer

Managing databases and user authentication.

Question 46

Which configuration file is primarily responsible for defining server blocks and virtual hosts in NGINX?

Accepted Answer

nginx.conf

Answer

apache.conf

Answer

http.conf

Answer

web.conf

Question 47

What is the primary purpose of the 'location' directive within NGINX configuration?

Accepted Answer

Defining rules for handling requests based on URL paths.

Answer

Managing user authentication and access control.

Answer

Setting the server's IP address and port.

Question 48

How does NGINX achieve its high performance and scalability?

Accepted Answer

By utilizing an asynchronous event-driven architecture and efficient memory management.

Answer

Using a multi-threaded model for handling requests.

Answer

Employing a complex database system for storing user data.

Question 49

What is the purpose of the 'proxy_pass' directive in NGINX?

Accepted Answer

Forwarding requests to backend servers or services.

Answer

Enabling SSL encryption for secure communication.

Answer

Caching static content for faster delivery.

Answer

Defining custom error pages for specific HTTP status codes.

Question 50

Which NGINX module is typically used to manage SSL/TLS certificates and encryption?

Accepted Answer

ngx_http_ssl_module

Answer

mod_rewrite

Answer

mod_cache

Answer

mod_auth

Question 51

How can you configure NGINX to serve static files from a specific directory?

Accepted Answer

By using the 'root' directive within a 'location' block.

Answer

Setting the 'document_root' option in the main configuration file.

Answer

Defining a virtual host specifically for static content.

Question 52

In NGINX, what is the difference between 'upstream' and 'server' in a proxy configuration?

Accepted Answer

'Upstream' defines a group of backend servers, while 'server' refers to a single backend instance.

Answer

'Upstream' is for load balancing, while 'server' is for caching static content.

Answer

'Upstream' handles SSL encryption, while 'server' manages user authentication.

Question 53

Which NGINX module can be used to implement rate limiting, preventing excessive requests?

Accepted Answer

ngx_http_limit_conn_module

Answer

ngx_http_proxy_module

Answer

ngx_http_auth_basic_module

Answer

ngx_http_gzip_module

Question 54

What is a common use case for deploying NGINX in a web development environment?

Accepted Answer

Acting as a reverse proxy for multiple backend applications.

Answer

Creating and managing dynamic web content.

Answer

Providing database management and user authentication services.