AWS Solutions Architect Associate (SAA-C02) Exam Prep Course - 2021 UPDATED! - Application Programming Interface (API) G

The video tutorial provides an in-depth look at APIs, focusing on AWS API Gateway. It begins with a historical overview of APIs, followed by an introduction to AWS API Gateway, explaining its role in managing cloud APIs. The tutorial delves into the architecture of API Gateway, highlighting its serverless nature and integration with AWS services like Lambda. An example illustrates how serverless architecture functions in real-world scenarios. The video concludes with a discussion on Cross-Origin Resource Sharing (CORS) and its significance in API Gateway operations.

What is the primary benefit of using APIs according to the introduction?

• They provide a standard way to accomplish tasks.

• They are only used for AWS services.

• They eliminate the need for any code.

• They allow for the reinvention of tasks.

Where is the API Gateway located in AWS services?

• In the security category

• In the networking and content delivery category

• In the DevOps tools category

• In the storage category

What can APIs interact with according to the functionalities section?

• Only local databases

• Both AWS services and external web services

• Only external web services

• Only AWS services

What is a key feature of serverless architecture?

• It is only applicable to AWS RDS databases.

• It requires EC2 instances to function.

• It cannot interact with external services.

• It allows data processing without instances.

How do API Gateway and Lambda functions work together?

• They require manual server management.

• They provide a serverless architecture.

• They are incompatible with each other.

• They only work with EC2 instances.

What is the role of CORS in API Gateway?

• It is not related to API Gateway.

• It enables cross-domain requests when configured.

• It restricts all cross-domain requests.

• It allows cross-domain requests by default.

In the practical example, what triggers the Lambda function?

• A directive sent through the API Gateway

• A manual server update

• A direct database query

• An automatic EC2 instance launch