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Security and Access Control

5 minutes 5 Questions

Security and Access Control is an essential aspect of AWS CloudFront to protect your content, restrict access, and ensure compliance with regulations. AWS CloudFront provides features like SSL/TLS encryption, integration with AWS Web Application Firewall (WAF), and customizable security policies to enhance content security in transit. To restrict access to the content, you can use signed URLs or signed cookies, which require users to provide a valid signature for accessing the content. Geo restriction, also known as Geoblocking, can be employed to restrict access based on the geographical location of users. These security measures help in protecting your content from unauthorized access, data leakage, and regulatory non-compliance.

Guide: AWS CloudFront - Security and Access Control

Importance:
The security and access control of AWS CloudFront is paramount to any AWS driven application's security. It provides a mechanism to restrict content delivery at each edge location, mitigates DDOS attacks, and serves secure content.
Concept:
AWS CloudFront Security Access Control manages who can access your content and potentially the cost of your CloudFront distribution. It includes components like signed URLs for private content, AWS WAF integration, restriction on CloudFront Origin access and Geo restriction to limit access from some locations.
Working:
Access Control Mechanism in AWS CloudFront works in several ways. You can restrict access to your Amazon S3 bucket so only CloudFront can access your content. You can specify the IP address ranges to whitelist or blacklist in AWS WAF or GEO restriction. For security of data transmission, it integrates with AWS Certificate Manager and supports HTTPS transmission.
Exam Tips:
When answering questions on Security and Access Control, consider all aspects of AWS CloudFront's access control, such as Origin access identities, signed URLs, IP Whitelisting/Blacklisting and Geo restrictions. Remember that it's always steady integration with other AWS services like AWS WAF and AWS ACM. Understanding the different scenarios where each type of access control is used will help answer the exam questions accurately.

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AWS Certified Solutions Architect - AWS CloudFront Example Questions

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Question 1

You are working on the architecture of an application that requires strict access control. The application should allow end users to access the system's data while keeping their access limited. Which of the following mechanisms provides the most suitable access control?

Correct Answer: IAM roles and policies

IAM roles and policies provide the best access control as they define what actions are allowed on which resources for specific users or groups, ensuring access limitation as required. Other options handle different aspects of AWS architecture and do not directly relate to access control.

Question 2

A company has multiple AWS accounts, and you need to ensure there is centralized control over security and compliance. What should you implement?

Correct Answer: AWS Organizations with Service Control Policies (SCPs)

AWS Organizations with Service Control Policies (SCPs) allows you to centrally manage and enforce security and compliance policies across multiple AWS accounts. Other options handle different aspects of AWS architecture and do not provide centralized control.

Question 3

A company stores sensitive data in DynamoDB and you are tasked with implementing a solution to regularly audit and review the access to this data. Which AWS service should you use?

Correct Answer: AWS CloudTrail

AWS CloudTrail is a service that logs, continuously monitors, and retains events related to API calls, providing an auditable history of who performed which actions at what time, making it suitable for auditing and reviewing access to sensitive data stored in DynamoDB. Other options either do not directly relate to auditing access or handle different aspects of AWS architecture and security.

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