CompTIA Cloud+ Practice Test

Which of the following would a company implement to provide authentication to multiple websites delivered through PaaS?

1. Federation services

2. MAC

3. Multi-factor authentication

4. RBAC

The correct answer is: RBAC

The correct choice for providing authentication to multiple websites delivered through Platform as a Service (PaaS) is federation services. Federation services enable a seamless single sign-on (SSO) experience across multiple web applications by allowing users to authenticate once and gain access to different systems without needing to log in separately to each one. This is particularly useful in a PaaS environment where various applications may need to share authentication credentials securely and easily. Implementing federation services means integrating identity providers that can manage user identities and their permissions across different applications, offering a streamlined approach to user authentication. Such services often rely on industry standards and protocols like Security Assertion Markup Language (SAML) or OpenID Connect to facilitate this cross-domain authentication. Though multi-factor authentication (MFA) can enhance security by requiring additional verification methods beyond a simple password, it does not inherently address the need for unified authentication across multiple platforms managed via PaaS. Role-Based Access Control (RBAC) refers to controlling access based on users' roles within an organization rather than on authentication workflows. MAC (Mandatory Access Control) is a stringent access control mechanism utilized in secure environments but does not deal specifically with user authentication across different websites.