Stress Testing APIs with Gatling and Scala Practice Exam

Stress Testing APIs with Gatling and Scala Practice Exam

Stress Testing APIs with Gatling and Scala is about checking how well an application’s APIs perform when many people use them at the same time. Imagine a busy highway — if too many cars enter at once, traffic jams can occur. Similarly, when too many users access a system, it might slow down or crash. Stress testing helps developers and testers figure out the limits of a system so it can handle heavy use without breaking. Gatling is a popular tool for this kind of testing, and Scala is the programming language used to write test scenarios.

By using Gatling with Scala, professionals can simulate thousands of users sending requests to an API, monitor how it responds, and find weak spots. This ensures applications remain fast, stable, and reliable even during peak usage. It is especially important for businesses that rely on high-performance applications, such as banking, e-commerce, and streaming platforms.

Who should take the Exam?

This exam is ideal for:

• Software developers working with APIs
• Quality assurance (QA) engineers
• Performance testers
• DevOps engineers
• System architects
• IT professionals in cloud and web services
• Students pursuing careers in software testing or DevOps

Skills Required

• Basic understanding of APIs
• Knowledge of programming (preferably Scala or Java)
• Logical problem-solving skills
• Familiarity with web applications
• Interest in performance and load testing

Knowledge Gained

• Fundamentals of API stress and load testing
• Hands-on experience with Gatling tool
• Writing performance test scripts using Scala
• Identifying and analyzing system bottlenecks
• Designing scalable test scenarios for real-world conditions
• Monitoring performance metrics and interpreting results
• Improving software reliability and speed under load

Course Outline

The Stress Testing APIs with Gatling and Scala Exam covers the following topics -

1. Introduction to Stress Testing

• What is stress testing?
• Importance in modern applications
• Key differences between stress, load, and performance testing

2. Getting Started with Gatling

• Overview of Gatling tool
• Installation and setup
• Core components and features

3. Scala Basics for Gatling

• Introduction to Scala language
• Writing simple test scripts
• Understanding functional programming concepts

4. Creating API Test Scenarios

• Designing virtual user simulations
• Setting up HTTP requests
• Parameterization and dynamic data feeding

5. Running Stress Tests

• Executing Gatling tests
• Configuring load profiles
• Collecting results and logs

6. Analyzing Test Results

• Reading Gatling reports
• Identifying response times and failure points
• Finding performance bottlenecks

7. Advanced Testing Techniques

• Chaining requests in scenarios
• Handling authentication and session management
• Distributed load testing

8. Integrating with CI/CD

• Automating tests in Jenkins, GitHub Actions, or GitLab
• Continuous performance testing pipelines
• Best practices for DevOps integration

9. Optimizing Application Performance

• Tuning APIs for better performance
• Improving server configurations
• Monitoring long-term performance