Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

Traffic Manager is designed to optimize the distribution of user traffic to various endpoints based on the DNS server closest to the user. It employs DNS-based routing to guide users to the nearest or best performing services, which helps improve response times and user experiences by minimizing latency. This capability is crucial for applications deployed across multiple geographic regions, as it allows Azure to leverage its global network to route requests intelligently. Traffic Manager can utilize different routing methods, such as performance routing, geographic routing, and weighted routing, to further enhance traffic management according to specific user needs. The other choices contribute differently within the Azure ecosystem. A gateway typically serves as a point of entry for network communications, while a network security group focuses on regulating inbound and outbound traffic to network interfaces or subnets. Load balancers, although they help distribute incoming traffic across multiple servers, operate at a different layer and do not direct traffic based on the proximity of DNS servers. Thus, Traffic Manager is the most suitable option for directing traffic utilizing DNS proximity to globally distributed endpoints.