Zscaler ZDTE Dumps

In the Zscaler Digital Transformation Engineer material, DNS is highlighted as a critical dependency in the overall user experience path. When DNS responses are slow or inconsistent, even well-designed network paths and high-bandwidth links still result in poor page load times and sluggish application behavior. The Zscaler help on performance explicitly calls out that delayed DNS responses negatively affect page loading times, underscoring that DNS resolution speed directly impacts perceived performance.

Zscaler’s DNS Security and Control and Trusted Resolver capabilities are designed not only to improve security but also to deliver “lightning-fast, secure DNS resolution and high availability” and to “ensure a great user experience with requests resolved at the edge.” Choosing the right DNS architecture—where resolvers are close to users, highly available, and integrated with security policy—therefore becomes a primary lever to improve performance and responsiveness for all applications.

Limiting the number of DNS queries, reducing internet cost, or adding configuration complexity are not stated goals of Zscaler’s recommended DNS design. Instead, the curriculum consistently frames correct DNS architecture as foundational to fast, reliable name resolution and a smooth digital experience, which aligns directly with option B.

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Zscaler OneAPI is described in the Digital Transformation Engineer and Zero Trust Automation content as a unified API gateway for the entire Zscaler platform. Official OneAPI overview material explains that it provides “a common API endpoint” and “a single programming interface for the entire Zscaler platform,” so automation engineers no longer need to manage different endpoints, authentication patterns, or schemas for each product.

The Zero Trust Automation at-a-glance guide further emphasizes that OneAPI “uses a single API to enable automation as an administrator,” which accelerates deployment and reduces human error. Study resources summarizing OneAPI reinforce that it “simplifies integration by providing a single-entry point for accessing multiple APIs,” reducing complexity and making it easier to build consistent automation across ZIA, ZPA, ZDX, and ZCC.

The other options contradict this design. OneAPI is specifically intended to avoid multiple registration processes and repeated token or authorization workflows; OAuth 2.0 is centralized via ZIdentity so that API clients authenticate once and then use scoped access across services. Therefore, the clearly documented benefit that matches the Zscaler Digital Transformation Engineer description is that OneAPI simplifies API integration by using a single entry point, making C the correct answer.

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Within the ZIA Cloud Firewall and broader Zscaler Internet Access architecture, Public Service Edges (PSEs) are the core policy enforcement points. User traffic is steered (via tunnels, PAC files, or agents) to the nearest PSE, where Zscaler performs security inspection and policy evaluation. At this point, the Cloud Firewall, URL filtering, SSL inspection, IPS, sandboxing, and other security engines are applied according to the user’s identity, group, location, and defined policies.

Although the PSEs naturally participate in traffic distribution across the global Zscaler cloud, their primary purpose is not generic load balancing or network transit; rather, they host the full security stack and make real-time allow/deny/log decisions. They also enforce bandwidth controls, application rules, and advanced threat protections before forwarding allowed traffic to the internet.

They are not responsible for managing endpoint security updates or providing general cloud storage. Instead, they serve as inline security gateways that enforce Zero Trust access and granular firewall rules at scale. Therefore, the correct description of their role in the Cloud Firewall architecture is that they act as key policy enforcement engines.

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