Zero Trust Network Access (ZTNA)simplifies secure remote access to cloud and SaaS applications by enforcing identity-based, least-privilege access policies. It eliminates the need to extend traditional network- based access models to the cloud. ZTNA ensures thateach user is verified continuouslyregardless of their network location, aligning perfectly with complex multi-cloud or SaaS environments.
* RADIUS (A)is an older authentication protocol, not ideal for SaaS cloud scale.
* SDN (B)controls network flow, not identity management.
* SWG (D)is a secure web proxy, not for access control and IAM extension.
#Reference:
* CS0-003 Exam Objectives 1.1 - Identity and Access Management
* Sybex Study Guide - Chapple & Seidl, Chapter 2: Zero Trust & Cloud IAM