Scenario: Your team is conducting performance testing for a cloud-based application. What considerations should you keep in mind regarding network latency?
- Database schema optimization
- Geographic distribution of users
- Hardware specifications of servers
- User interface design
Network latency can vary based on the geographic location of users accessing the cloud-based application, so considering the distribution of users is crucial for accurate performance testing.
Scenario: During performance testing, you notice a significant increase in response time under heavy load. What steps would you take to diagnose and resolve this issue?
- Adding more servers
- Analyzing system logs
- Ignoring the issue
- Restarting the application
Analyzing system logs can provide insights into resource utilization, errors, and other factors contributing to the increase in response time under heavy load, helping diagnose and resolve the issue.
What is VPC integration in AWS Lambda?
- Configuring Lambda functions for auto-scaling
- Connecting Lambda functions to a Virtual Private Cloud (VPC)
- Creating Lambda functions using graphical user interface
- Running Lambda functions without any network configuration
VPC integration in AWS Lambda enables you to connect Lambda functions securely to resources within a Virtual Private Cloud (VPC), such as Amazon RDS databases or EC2 instances.
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.
__________ is the process of gradually increasing the load on a system until it reaches its breaking point.
- Load balancing
- Reliability testing
- Scalability testing
- Stress testing
Stress testing is the process of gradually increasing the load on a system until it reaches its breaking point, helping identify the system's limits.
__________ testing evaluates the performance of a system under peak load conditions.
- Integration
- Regression
- Stress
- Unit
Stress testing evaluates the performance of a system under extreme conditions, such as peak load, to ensure it can handle high levels of traffic or usage.
It's essential to establish clear __________ criteria before conducting performance testing.
- Code
- Risk
- Security
- Success
Establishing clear success criteria helps define the objectives and expectations of performance testing, ensuring that the outcomes align with the desired goals of the testing process.
What is the primary benefit of using VPC integration with AWS Lambda?
- Increased scalability of Lambda functions
- Reduced cost of function execution
- Securely access resources within a VPC
- Simplified management of Lambda functions
The primary benefit of VPC integration with AWS Lambda is the ability to securely access resources within the connected Virtual Private Cloud (VPC), ensuring data privacy and network isolation.
What are the potential drawbacks of using VPC integration with AWS Lambda?
- Cold start latency
- Complexity in setup
- Increased cost
- Limitation on available IP addresses
When using VPC integration with AWS Lambda, cold start latency can increase due to the time required to configure networking resources within the VPC.