__________ is a technique used to reduce the overhead of monitoring in AWS Lambda by sampling data.
- Aggregation
- Profiling
- Sampling
- Streaming
Sampling is a technique used to reduce the overhead of monitoring in AWS Lambda by collecting and analyzing only a subset of data, rather than all data points.
What strategies can be employed to manage dependencies efficiently and reduce cold start times?
- Increasing memory allocation
- Precompiling dependencies into layers
- Using smaller deployment packages
- Utilizing containerization
Precompiling dependencies into layers allows you to include common dependencies across multiple functions, reducing cold start times by eliminating the need to load dependencies during runtime.
Scenario: You are tasked with optimizing the performance of a serverless application that experiences frequent cold starts. What combination of strategies would you recommend to address this issue effectively?
- Implement provisioned concurrency and optimize function code
- Increase memory allocation and add more AWS Lambda functions
- Scale up the underlying infrastructure and use Auto Scaling
- Use API Gateway caching and implement asynchronous processing
Implementing provisioned concurrency in AWS Lambda along with optimizing function code can effectively address frequent cold starts by pre-warming functions and improving efficiency.
Scenario: Your team is developing a real-time streaming application that requires low-latency processing. How would you design the architecture to mitigate cold start delays in AWS Lambda?
- Implement API Gateway caching
- Increase memory allocation
- Reduce code size
- Use provisioned concurrency
Using provisioned concurrency in AWS Lambda allows you to pre-warm functions, reducing cold start delays and ensuring low-latency processing for real-time streaming applications.
Leveraging __________ can help distribute traffic evenly, minimizing cold start impacts during peak loads.
- Auto Scaling
- Load Balancing
- Provisioned Concurrency
- Throttling
Load Balancing distributes incoming traffic across multiple instances, helping to evenly distribute the load and minimize cold start impacts during peak loads.
__________ allows you to specify a minimum number of instances to keep warm, reducing cold start times.
- Auto Scaling
- Load Balancing
- Provisioned Concurrency
- Throttling
Provisioned Concurrency in AWS Lambda allows you to specify a minimum number of instances to keep warm, ensuring that there are always warm instances available to handle incoming requests, thus reducing cold start times.
One approach to reducing cold starts is to implement __________, which pre-warms Lambda instances.
- Auto Scaling
- Load Balancing
- Provisioned Concurrency
- Throttling
Provisioned Concurrency is an AWS Lambda feature that allows you to allocate a fixed number of execution environments (instances) and keep them warm, reducing cold start times by eliminating the need to spin up new instances.
Using __________ to manage dependencies can facilitate faster cold start times in AWS Lambda functions.
- Dependency management tools
- Integrated development environments
- Profiling tools
- Static code analysis
Using dependency management tools such as npm or pip to efficiently manage dependencies can facilitate faster cold start times in AWS Lambda functions.
Optimizing __________ can help reduce the size of deployment packages, thereby improving cold start times.
- Dependencies
- Execution time
- Memory allocation
- Networking
Optimizing dependencies can help reduce the size of deployment packages, thereby improving cold start times.
Cold start reduction techniques aim to minimize the time it takes for an AWS Lambda function to become __________.
- Active
- Executing
- Sleeping
- Warm
Cold start reduction techniques aim to minimize the time it takes for an AWS Lambda function to become warm, meaning already initialized and ready to respond to events without delay.
What are the trade-offs involved in using provisioned concurrency to reduce cold starts?
- Cost implications
- Increased complexity
- Latency overhead
- Resource contention
Using provisioned concurrency to reduce cold starts can incur additional costs, add complexity to the deployment process, potentially lead to resource contention, and introduce latency overhead.
How does optimizing code size contribute to reducing cold start times in AWS Lambda?
- It enhances network bandwidth
- It improves error handling
- It increases memory allocation
- It reduces download time
Optimizing code size in AWS Lambda reduces the amount of code that needs to be downloaded during cold starts, speeding up the initialization process and reducing cold start times.