Nginx Online Test

The Nginx Online Test uses scenario-based MCQs to evaluate candidates' ability to configure and optimize Nginx, as well as their understanding of load balancing, SSL/TLS, caching, proxying, and security. Other key skills that the test evaluates include web development, Linux/Unix administration, network protocols, scripting, and troubleshooting.

Covered skills:

Nginx configuration
Load balancing
Reverse proxy
Caching
Security
SSL/TLS
Performance optimization
Logging and monitoring
HTTP server
HTTPS server

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About the Nginx Test

The Nginx Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

Ability to configure and optimize Nginx server for performance
Experience in load balancing with Nginx
Understanding of reverse proxy concepts and implementation with Nginx
Knowledge of caching techniques and their application in Nginx
Familiarity with SSL/TLS configuration in Nginx for secure communication
Proficiency in handling Nginx security configurations and access controls
Ability to troubleshoot Nginx server logs and monitor server performance
Understanding of HTTP and HTTPS server configurations in Nginx
Knowledge of Nginx proxy server configurations and usage
Experience in optimizing Nginx for high traffic and scalability
Familiarity with Nginx configuration for logging and analysis
Understanding of Nginx configuration for handling HTTP headers

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Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this Nginx Online Test will be non-googleable.

🧐 Question
Medium Configuration for SSL SSL Configuration Performance Tuning Server Blocks	Solve
An organization wants to configure an Nginx server to serve both HTTP and HTTPS traffic efficiently. The requirements are as follows: redirect all HTTP traffic to HTTPS, utilize the SSL protocol for secure communication, and ensure optimal performance by enabling gzip compression for text files. Given the configuration snippets below, select the correct combination that meets these requirements. 1. 2. 3. 4. 5.
Easy Overlapping Location Blocks Server Configuration Request Handling Nginx Location Block Matching Url Path Ambiguity Resolution	Solve
An Nginx server is configured with multiple `location` blocks that overlap in their path specifications, leading to potential ambiguity in request handling. Given the following configuration snippets, identify which `location` block will handle a request to the URL `/images/thumbnails/large/photo.jpg`: 1. `location = /images/thumbnails/large/photo.jpg { ... }` 2. `location ^~ /images/thumbnails/ { ... }` 3. `location ~* \.(jpg\|png)$ { ... }` 4. `location /images/ { ... }` A: Location block 1 will handle the request because it exactly matches the request URI. B: Location block 2 will handle the request because it matches the prefix and disables regex checking. C: Location block 3 will handle the request because it matches the case-insensitive regex for file extensions. D: Location block 4 will handle the request because it has the longest matching prefix. E: All of the above location blocks will handle the request in the order they are defined.
Medium Securing Nginx with Rate Limiting Security Rate Limiting Nginx Configuration	Solve
You are tasked with enhancing the security of an Nginx server by implementing rate limiting to protect against brute-force attacks. The requirement is to limit requests to the login page (/login) to no more than 10 requests per minute for each IP address, while ensuring legitimate users are not adversely affected by false positives. Which configuration snippet correctly sets up rate limiting for this purpose? A: Configuring the limit_rate directive to 10 requests per minute directly inside the /login location block. B: Setting the limit_conn directive to 10 inside the /login location block to restrict concurrent connections. C: Using the limit_req directive inside the http block without defining a limit_req_zone. D: Applying a deny all directive inside the /login location block for requests exceeding 10 per minute. E: Defining a limit_req_zone directive outside the server block with a rate of 10r/m and applying it to the /login location using the limit_req directive.

	🧐 Question	🔧 Skill
	Medium Configuration for SSL SSL Configuration Performance Tuning Server Blocks	2 mins Nginx	Solve
An organization wants to configure an Nginx server to serve both HTTP and HTTPS traffic efficiently. The requirements are as follows: redirect all HTTP traffic to HTTPS, utilize the SSL protocol for secure communication, and ensure optimal performance by enabling gzip compression for text files. Given the configuration snippets below, select the correct combination that meets these requirements. 1. 2. 3. 4. 5.
	Easy Overlapping Location Blocks Server Configuration Request Handling Nginx Location Block Matching Url Path Ambiguity Resolution	2 mins Nginx	Solve
An Nginx server is configured with multiple `location` blocks that overlap in their path specifications, leading to potential ambiguity in request handling. Given the following configuration snippets, identify which `location` block will handle a request to the URL `/images/thumbnails/large/photo.jpg`: 1. `location = /images/thumbnails/large/photo.jpg { ... }` 2. `location ^~ /images/thumbnails/ { ... }` 3. `location ~* \.(jpg\|png)$ { ... }` 4. `location /images/ { ... }` A: Location block 1 will handle the request because it exactly matches the request URI. B: Location block 2 will handle the request because it matches the prefix and disables regex checking. C: Location block 3 will handle the request because it matches the case-insensitive regex for file extensions. D: Location block 4 will handle the request because it has the longest matching prefix. E: All of the above location blocks will handle the request in the order they are defined.
	Medium Securing Nginx with Rate Limiting Security Rate Limiting Nginx Configuration	2 mins Nginx	Solve
You are tasked with enhancing the security of an Nginx server by implementing rate limiting to protect against brute-force attacks. The requirement is to limit requests to the login page (/login) to no more than 10 requests per minute for each IP address, while ensuring legitimate users are not adversely affected by false positives. Which configuration snippet correctly sets up rate limiting for this purpose? A: Configuring the limit_rate directive to 10 requests per minute directly inside the /login location block. B: Setting the limit_conn directive to 10 inside the /login location block to restrict concurrent connections. C: Using the limit_req directive inside the http block without defining a limit_req_zone. D: Applying a deny all directive inside the /login location block for requests exceeding 10 per minute. E: Defining a limit_req_zone directive outside the server block with a rate of 10r/m and applying it to the /login location using the limit_req directive.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Configuration for SSL SSL Configuration Performance Tuning Server Blocks	Nginx	Medium	2 mins	Solve
An organization wants to configure an Nginx server to serve both HTTP and HTTPS traffic efficiently. The requirements are as follows: redirect all HTTP traffic to HTTPS, utilize the SSL protocol for secure communication, and ensure optimal performance by enabling gzip compression for text files. Given the configuration snippets below, select the correct combination that meets these requirements. 1. 2. 3. 4. 5.
	Overlapping Location Blocks Server Configuration Request Handling Nginx Location Block Matching Url Path Ambiguity Resolution	Nginx	Easy	2 mins	Solve
An Nginx server is configured with multiple `location` blocks that overlap in their path specifications, leading to potential ambiguity in request handling. Given the following configuration snippets, identify which `location` block will handle a request to the URL `/images/thumbnails/large/photo.jpg`: 1. `location = /images/thumbnails/large/photo.jpg { ... }` 2. `location ^~ /images/thumbnails/ { ... }` 3. `location ~* \.(jpg\|png)$ { ... }` 4. `location /images/ { ... }` A: Location block 1 will handle the request because it exactly matches the request URI. B: Location block 2 will handle the request because it matches the prefix and disables regex checking. C: Location block 3 will handle the request because it matches the case-insensitive regex for file extensions. D: Location block 4 will handle the request because it has the longest matching prefix. E: All of the above location blocks will handle the request in the order they are defined.
	Securing Nginx with Rate Limiting Security Rate Limiting Nginx Configuration	Nginx	Medium	2 mins	Solve
You are tasked with enhancing the security of an Nginx server by implementing rate limiting to protect against brute-force attacks. The requirement is to limit requests to the login page (/login) to no more than 10 requests per minute for each IP address, while ensuring legitimate users are not adversely affected by false positives. Which configuration snippet correctly sets up rate limiting for this purpose? A: Configuring the limit_rate directive to 10 requests per minute directly inside the /login location block. B: Setting the limit_conn directive to 10 inside the /login location block to restrict concurrent connections. C: Using the limit_req directive inside the http block without defining a limit_req_zone. D: Applying a deny all directive inside the /login location block for requests exceeding 10 per minute. E: Defining a limit_req_zone directive outside the server block with a rate of 10r/m and applying it to the /login location using the limit_req directive.

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Why you should use Pre-employment Nginx Online Test?

The Nginx Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

Configuring Nginx to optimize web server performance
Load balancing techniques and strategies for distributing traffic
Implementing reverse proxy to improve server response time
Caching strategies to enhance website speed and reduce server load
Implementing security measures on Nginx server
Configuring SSL/TLS certificates for secure communication
Optimizing Nginx server for high-performance delivery
Monitoring and logging Nginx server activities
Setting up HTTP server on Nginx
Configuring HTTPS server on Nginx

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Nginx Online Test?

Nginx configuration: Nginx configuration refers to setting up and managing the various parameters and directives of the Nginx web server. This skill is essential to ensure optimal performance, security, and reliability of the server, as well as to customize the server to meet specific requirements.

Load balancing: Load balancing involves distributing incoming network traffic across multiple servers to ensure efficient utilization of resources and improve the overall performance and availability of the application or website. This skill is crucial for handling high traffic loads and preventing server overload or downtime.

Reverse proxy: A reverse proxy acts as an intermediary between client devices and web servers, forwarding client requests to the appropriate backend servers. This skill is important for increasing security, managing multiple web servers, and improving performance through caching and SSL termination.

Caching: Caching involves storing frequently accessed data or web content in a temporary storage location, such as RAM or disk, to reduce the response time and server load. This skill is vital for improving the overall performance and scalability of web applications and reducing bandwidth usage.

Security: Ensuring the security of the web server and the applications it hosts is crucial to protect sensitive data and prevent unauthorized access or attacks. This skill involves implementing security measures, such as firewall rules, access control, secure communication protocols, and regular security audits, to mitigate potential vulnerabilities and risks.

SSL/TLS: SSL/TLS (Secure Sockets Layer/Transport Layer Security) is the standard encryption protocol used to establish secure connections between client devices and web servers. This skill is important for securing data transmission, preventing eavesdropping, and establishing trust between users and the server.

Performance optimization: Performance optimization involves identifying and implementing strategies to improve the speed, efficiency, and responsiveness of web applications and websites. This skill includes techniques such as code optimization, server configuration tuning, caching mechanisms, and load testing to ensure optimal performance even under heavy loads.

Logging and monitoring: Logging and monitoring involve keeping track of server logs, system metrics, and application performance to identify issues, troubleshoot errors, and proactively manage the server infrastructure. This skill is essential for maintaining server health, diagnosing performance bottlenecks, and detecting security breaches.

HTTP server: The HTTP server component of Nginx handles incoming HTTP requests, processes them, and returns the appropriate HTTP responses. This skill is necessary for serving web content, handling different HTTP methods, managing URL routing, and implementing various HTTP-related features.

HTTPS server: HTTPS server refers to the configuration and management of Nginx to handle secure HTTPS (HTTP over SSL/TLS) connections. This skill involves setting up SSL certificates, enforcing secure communication, and configuring HTTPS-related features like HSTS (HTTP Strict Transport Security) and secure ciphers.

Full list of covered topics

The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Nginx Online Test to be based on.

Nginx directives

Location block

Rewrite rules

Upstream servers

Server blocks

Buffering techniques

Cache control

Content compression

Rate limiting

TLS protocols

Certificate management

Client authentication

HTTP security headers

Access control

Logging formats

Log rotation

Monitoring tools

Gzip compression

Load balancing algorithms

Server health checks

High availability

Web application firewall

HTTP/2 support

Proxy protocols

Static file serving

ModSecurity integration

TLS session resumption

Caching strategies

DNS resolver

GeoIP module

Reverse proxy caching

Backend connection pooling

Real-time metrics

Performance tuning

Error handling

Server metrics

TCP load balancing

HTTP load balancing

Ingress controllers

Session persistence

SSL stapling

Rate limiting strategies

WebSockets support

Request and response headers

HTTP redirects

HTTP status codes

TCP optimization

Security best practices

Log analysis

Server hardening

Nginx architecture

Proxy buffering

Server push

Authentication mechanisms

What roles can I use the Nginx Online Test for?

Nginx Administrator
Linux System Administrator
DevOps Engineer

How is the Nginx Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

Troubleshooting and resolving common Nginx issues
Implementing advanced load balancing algorithms
Securing Nginx server from DDoS attacks
Implementing content caching for faster page loading
Configuring Nginx as a reverse proxy server
Using access controls to restrict server access
Implementing rate limiting to prevent abusive requests
Monitoring server health and performance metrics
Optimizing SSL/TLS handshake process
Configuring Nginx to work with different backend servers

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Have questions about the Nginx Hiring Test?

What is the Nginx Online Test?

The Nginx Online Test is designed to evaluate a candidate's expertise in Nginx, covering topics such as configuration, load balancing, reverse proxy, caching, and security. It is useful for recruiters to identify skilled candidates for Nginx-related roles.

Can I combine Nginx Online Test with other skills?

Yes, recruiters can request a custom test that combines multiple skills. For example, you might combine the Nginx Online Test with the Linux Online Test to evaluate a candidate's server administration skills.

What skills are assessed for senior roles in the Nginx Online Test?

The test assesses advanced skills such as troubleshooting Nginx issues, implementing load balancing algorithms, securing the server from DDoS attacks, configuring Nginx as a reverse proxy, and monitoring server performance.

How to use the Nginx Online Test in my hiring process?

Use the test as a pre-screening tool at the start of your recruitment process. Add a link to the assessment in your job post or directly invite candidates via email. This helps identify skilled candidates earlier.

What are the main DevOps tests?

Besides the Nginx Online Test, you can explore other DevOps tests such as:

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

Non-googleable questions
IP proctoring
Screen proctoring
Web proctoring
Webcam proctoring
Plagiarism detection
Secure browser
Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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Along with scorecards that report the performance of the candidate in detail, you also receive a comparative analysis against the company average and industry standards.

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