Exam CS0-003 topic 1 question 321 discussion

Zero Trust Network Access (ZTNA) is specifically designed to simplify and secure identity and access management (IAM) across cloud, hybrid, and on-premises environments. It provides a unified, identity-centric approach, enforcing strict access controls, verifying trust before granting least privilege access, and allowing for consistent access policies across all workloads—including SaaS applications. This addresses the complexity administrators face when extending IAM to cloud-based assets during migration.

SASE helps reduce this complexity by combining network security functions (like Zero Trust Network Access, SWG, CASB, and FWaaS) with WAN capabilities into a single cloud-delivered service model. OpenID is an authentication protocol, not a full service model.

SASE is a network architecture model that integrates SD-WAN (Software-Defined Wide Area Network) with cloud-native security functions, such as Secure Web Gateway (SWG), Cloud Access Security Broker (CASB), Firewall-as-a-Service (FWaaS), and Zero Trust Network Access (ZTNA), into a single, cloud-delivered service.

A. OpenID Reasoning: OpenID is an authentication protocol that allows users to log in to multiple services using a single identity provider (IdP). It simplifies IAM by enabling federated identity management, reducing the need for complex configurations when extending authentication to cloud-based resources.

When migrating multiple SaaS applications to the cloud, managing identity and access across all applications can become complex. OpenID is an authentication protocol that simplifies this by enabling Single Sign-On (SSO). With OpenID, users can use a single set of credentials to access multiple cloud-based SaaS applications, reducing the complexity of identity management for systems administrators. SASE is a cloud-based security framework that integrates networking and security functions, like SD-WAN and secure web gateways. While it enhances secure connectivity, it doesn’t specifically address identity and access management challenges.

A. OpenID OpenID simplifies the authentication process across multiple SaaS applications by using a federated identity model. It reduces complexity by eliminating the need for separate credentials for each application. ZTNA is related to access control, it doesn't specifically address IAM simplification for SaaS applications. SASE is more focused on network security than simplifying IAM specifically for SaaS applications. SWG is unrelated to IAM or reducing complexity for SaaS access.

The service model that would have reduced the complexity of extending identity and access management to cloud-based assets during a migration is C. ZTNA (Zero Trust Network Access)

OpenID is a method of authenticating users with specific websites that participate in an OpenID system. It allows them to maintain a single account across all participating websites. A user registers with an OpenID system on a given domain as they would with any other account, and a website under that OpenID domain gives the user the option to log in using that system. The website then contacts its external OpenID provider to verify that the login credentials provided by the user are correct. Large companies such as Google and Amazon use their own OpenID systems. OpenID Direct adds an authentication layer to OAuth 2.0, the latest version of the protocol.

SASE is a cloud-native security architecture that integrates networking and security services, including identity management and access control, which simplifies and centralizes the management of users and devices accessing cloud resources.