AWS Certified Cloud Practitioner — Question 473

A company is planning to configure multi-factor authentication (MFA) for a business application. The company needs to use text messages to distribute one-time passwords to its customers worldwide.

Which AWS service should the company use to meet this requirement?

Answer options

• A. Amazon EventBridge (Amazon CloudWatch Events)
• B. AWS Identity and Access Management (IAM)
• C. Amazon Simple Notification Service (Amazon SNS)
• D. Amazon Connect

Correct answer: C

Explanation

Amazon Simple Notification Service (Amazon SNS) allows applications to send SMS text messages directly to mobile numbers worldwide, making it the perfect choice for distributing one-time passwords for MFA. AWS IAM manages access to AWS resources rather than external customer MFA delivery, while Amazon EventBridge is an event routing service and Amazon Connect is a cloud contact center solution.