AWS Certified Data Analytics Specialty 2021 – Hands-On - What Is AWS Lambda?

AWS Lambda is a serverless computing service that allows users to run code without managing servers. It automatically scales based on data input and is often used in big data processing and as a glue between AWS services. Lambda can also be used to build serverless websites and connect various AWS services, such as API Gateway, Cognito, and DynamoDB. Its flexibility allows for creative integration of different components, making it a powerful tool for developers.

What is the primary benefit of using AWS Lambda for running code?

• It does not support automatic scaling.

• It is only suitable for large-scale applications.

• It allows running code without managing servers.

• It requires manual server management.

How does AWS Lambda handle scaling when dealing with large amounts of data?

• It requires manual intervention to scale.

• It uses fixed resources regardless of data size.

• It scales automatically based on data input.

• It cannot handle large data volumes.

In a serverless website, what role does AWS Lambda play?

• It replaces the need for an API Gateway.

• It directly interacts with the user interface.

• It manages user authentication and backend processes.

• It serves static HTML content.

What is a common use of AWS Lambda in data processing?

• Running long-term server applications.

• Providing direct user interface interactions.

• Acting as a connector between data streams and databases.

• Hosting static websites.

How can AWS Lambda be used to notify users of unusual system events?

• By sending direct emails to users.

• By triggering SNS requests to send alerts.

• By logging events without notifications.

• By manually checking system logs.