ZDTA Reviews Questions

ZDX application scoring aggregates the user experience observed during the selected time period. The tested calculation uses each user ' s lowest experienced value for that application, then averages those lowest values across the users who accessed it. This prevents a brief severe degradation from being hidden by otherwise healthy samples. Option A (Zscaler takes all the users that accessed the application for the selected time period and finds the lowest value each user would have experienced for the application. The lowest values for each user are added together and divided by the number of users) is correct because it describes the user-based lowest-value aggregation model.

Why the other options are incorrect:

B. Zscaler considers a single user that accessed the application for the selected time period and finds the lowest value that user would have experienced for the application. The lowest values for that user are added together and divided by the number of all users in the organization: This only considers one user, then divides by all users, which would distort the application score. ZDX computes the app score from all users who accessed the app in the selected period.

C. Zscaler takes sample set of users that accessed the application for the selected time period and finds the lowest value each user would have experienced for the application. The lowest values for each user are added together and divided by the number of sample set of users: A sample set could miss users with poor experience. The tested ZDX calculation uses all users who accessed the application, then averages their lowest experienced values.

D. Zscaler takes the lowest value for each application for a set of users, for time intervals based on the selected time range. The application with the lowest value represents your applications score for that time interval: This shifts the calculation from users to applications. ZDX application score is based on users’ lowest experience for that application, not on picking the lowest application across a set.

Advanced Firewall extends standard firewall capabilities with DNS Tunnel and DNS Application Control. Those controls detect and manage DNS-based tunneling, command channels, or application behavior that simple network-service rules cannot adequately control. Option D (DNS Tunnel and DNS Application Control) is correct because DNS Tunnel and DNS Application Control are advanced firewall features.

Why the other options are incorrect:

A. Destination NAT: Destination NAT rewrites destination addresses. The tested Advanced Firewall value is DNS tunnel/application control, not NAT translation.

B. FQDN Filtering with wildcard: FQDN filtering applies rules to domain names, including wildcard domain patterns where supported.

C. DNS Dashboards, Insights and Logs: DNS resolves names to IP addresses; it is a support service, not an access protocol or scoring engine by itself.

Downloaders are malware whose primary job is to retrieve and install additional payloads. They are frequently used as a first-stage infection because the initial file can be small and then pull ransomware, RATs, infostealers, or other malware after execution. Option C (Downloaders) is correct because a downloader ' s purpose is specifically to deliver other malware.

Why the other options are incorrect:

A. RAT: A remote access trojan gives an attacker interactive control over a compromised host after infection.

B. Maldocs: A malicious document uses macros, embedded objects, or exploit content to run code when opened.

D. Exploitation tool: An exploitation tool attacks a vulnerability. A downloader is the malware type whose purpose is to fetch and install additional malware.

A URL Filtering Caution action is designed for web-style requests where the user can be warned before proceeding. The supported request methods tested here are Connect, GET, and HEAD, which align with browser-driven web access and HTTPS tunnel establishment. Option A (Connect, Get, Head) is correct because those methods are valid for the Caution action.

Why the other options are incorrect:

B. Options, Delete, Put: OPTIONS, DELETE, and PUT are HTTP methods, but the canonical REST basics in the guide include GET, POST, PUT, and DELETE.

C. Get, Delete, Trace: TRACE is an HTTP diagnostic method and is not part of the standard REST method set emphasized for Zscaler automation.

D. Connect, Post, Put: CONNECT is proxy tunneling behavior. REST API basics focus on resource methods such as GET, POST, PUT, and DELETE.