What is the purpose of load testing in performance testing?
- To check for software bugs
- To enhance security measures
- To evaluate how the system performs under heavy load
- To improve code quality
Load testing evaluates how the system performs under heavy load, identifying maximum capacity and performance bottlenecks.
What is the difference between stress testing and load testing?
- Load testing evaluates system recovery after failure
- Load testing measures system performance under expected load
- Stress testing and load testing are the same
- Stress testing evaluates system behavior under extreme conditions
Stress testing evaluates system behavior under extreme conditions, while load testing measures system performance under expected load.
How can you measure response time in performance testing?
- Observing user feedback
- Reviewing system logs
- Using a stopwatch to manually time responses
- Utilizing performance testing tools like JMeter
Utilizing performance testing tools like JMeter is the most effective and accurate method to measure response time in performance testing.
Which metric is commonly used to assess the scalability of a system in performance testing?
- Error rate
- Latency
- Response time
- Throughput
Throughput is commonly used to assess the scalability of a system, indicating how well the system can handle increased loads.
What are some common challenges faced during performance testing of distributed systems?
- Hardware limitations
- Limited test data
- Network latency
- Software bugs
Network latency, due to the distributed nature of the system, can significantly impact performance testing results, making it a common challenge.
How do you simulate real-world scenarios in performance testing?
- Debugging
- Manual testing
- Unit tests
- Using load testing tools
Load testing tools allow testers to create scenarios that mimic actual user interactions and loads, providing a realistic assessment of system performance.
What is the significance of analyzing performance testing results?
- Enhancing user interface
- Identifying bottlenecks
- Increasing feature set
- Reducing code complexity
Analyzing performance testing results is crucial for identifying system bottlenecks and performance issues, enabling targeted improvements and optimizations.
Performance testing should be conducted under __________ conditions to simulate real-world scenarios.
- Laboratory
- Optimal
- Realistic
- Synthetic
Performance testing should be conducted under realistic conditions to simulate how the system will perform in the real world, providing more accurate and useful results.
How does VPC integration affect AWS Lambda functions?
- Decreases function execution time
- Enables access to resources within the VPC
- Increases memory allocation
- Limits the number of concurrent executions
VPC integration allows Lambda functions to access resources within the connected Virtual Private Cloud (VPC), such as databases or EC2 instances, securely.
In performance testing, __________ is the process of determining how a system behaves under different conditions.
- Load testing
- Regression testing
- Stress testing
- Unit testing
Load testing is the process of determining how a system behaves under different conditions by simulating multiple users or transactions.