A Company Is Launching a Web-Based Application in Multiple Regions

question 862

Multiple Choice

A company is launching a web-based application in multiple regions around the world. The application consists of both static content stored in a private Amazon S3 bucket and dynamic content hosted in Amazon ECS containers content behind an Application Load Balancer (ALB) . The company requires that the static and dynamic application content be accessible through Amazon CloudFront only. Which combination of steps should a solutions architect recommend to restrict direct content access to CloudFront? (Choose three.)

• A) Create a web ACL in AWS WAF with a rule to validate the presence of a custom header and associate the web ACL with the ALB.
• B) Create a web ACL in AWS WAF with a rule to validate the presence of a custom header and associate the web ACL with the CloudFront distribution.
• C) Configure CloudFront to add a custom header to origin requests.
• D) Configure the ALB to add a custom header to HTTP requests.
• E) Update the S3 bucket ACL to allow access from the CloudFront distribution only.
• F) Create a CloudFront Origin Access Identity (OAI) and add it to the CloudFront distribution. Update the S3 bucket policy to allow access to the OAI only.

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Definitions:

Multivariate Regression

A statistical technique used to understand the relationship between one dependent variable and two or more independent variables.

Simple Regression

A statistical method for modeling the relationship between a single independent variable and a dependent variable by fitting a linear equation to observed data.

Multiple Regression

A statistical technique that models the relationship between a dependent variable and two or more independent variables by fitting a linear equation to observed data.

Regression Line

A line in regression analysis that best fits a set of data points, representing the predicted relationship between an independent variable and a dependent variable.