AWS Lambda supports concurrent executions, allowing multiple instances of a function to run __________.
- exclusively
- sequentially
- simultaneously
- sporadically
AWS Lambda supports concurrent executions, allowing multiple instances of a function to run simultaneously, enhancing performance and scalability for serverless applications.
In AWS Lambda, what triggers the execution of a function?
- Command-line interface (CLI)
- Events
- Manual invocation
- Scheduled intervals
Events such as changes to data in Amazon S3 or updates to DynamoDB tables trigger the execution of functions in AWS Lambda.
How does AWS Lambda manage server resources in a serverless architecture?
- Allocates fixed resources
- Automatically scales resources
- Requires manual scaling
- Utilizes third-party services
AWS Lambda automatically scales the resources allocated to a function based on the incoming workload, ensuring optimal performance without the need for manual intervention.
What are some challenges associated with serverless computing?
- Cold start latency
- Difficulty in debugging
- Limited execution time
- Vendor lock-in
Serverless functions may experience latency when they are invoked for the first time or after a period of inactivity, known as cold starts.
How can organizations optimize costs while using serverless computing?
- Choosing long-running functions
- Fine-tuning function memory allocation
- Increasing idle time
- Utilizing reserved capacity
Adjusting the memory allocated to serverless functions based on their resource requirements can optimize performance and cost-effectiveness.
Serverless computing abstracts server management, allowing developers to focus on writing __________.
- Code
- Documentation
- Emails
- Spreadsheets
Serverless computing abstracts server management, allowing developers to focus on writing code, rather than worrying about server provisioning or management tasks.
In serverless computing, developers are charged based on __________ rather than provisioned capacity.
- Actual usage
- Network bandwidth
- Provisioned capacity
- Time of deployment
In serverless computing, developers are charged based on actual usage, meaning they only pay for the resources consumed during the execution of their functions.
Serverless architectures are often characterized by their stateless nature, where __________ is not preserved between invocations.
- CPU
- Memory
- Network
- State
In serverless architectures, functions are stateless, meaning that any state or context from one invocation of a function is not preserved for the next invocation.
One strategy to optimize performance in serverless computing is to minimize __________.
- Cold starts
- Event processing
- Function duration
- Memory allocation
Minimizing cold starts, the time it takes for a function to respond to its first invocation, can improve performance in serverless computing.
Serverless computing encourages a __________ approach to development, promoting small, focused functions.
- Distributed
- Microservices
- Modular
- Monolithic
Serverless computing promotes a microservices architecture, where applications are composed of small, independent functions that each perform a specific task.