Oracle Analytics Cloud 2025 Professional Advanced Practice Exam: Hard Questions 2025

You administer Oracle Analytics Cloud (OAC) for a global organization. Following a security hardening project, users intermittently get authentication prompts and occasional 401/403 errors when opening workbooks embedded in an internal portal. Direct access to OAC in a browser works consistently. The portal uses a reverse proxy and SSO; OAC is configured with the same Identity Provider. Which is the MOST likely root cause and best corrective action in OAC/SSO integration?

Your OAC environment runs large scheduled loads and many interactive workbook queries. Users report sporadic slowdowns during business hours, but only on days when multiple data flows and dataset refreshes run. You must reduce contention without removing critical schedules. Which approach best aligns with OAC administration best practices to isolate workload and improve interactive performance?

A security audit finds that certain catalog objects (datasets, data flows, and workbooks) were created with overly permissive access. You need to implement a governance approach that prevents accidental broad sharing while still allowing business teams to collaborate. Which solution is the most robust and scalable in OAC?

A workbook uses a date hierarchy (Year-Quarter-Month-Day) and several measures. Users complain that when they drill from Month to Day, totals no longer match the Month totals and sometimes appear duplicated. The dataset is built from a transactional table that can contain multiple rows per day per product due to adjustments, and the workbook includes both distinct-count measures and sum measures. What is the MOST likely cause and the best fix?

You build a dashboard for executives. One visualization shows Top 10 Customers by Revenue. Another visualization shows Revenue trend over time for the selected customer. Users apply a filter to the Top 10 viz, but the trend chart sometimes shows a different customer than the one clicked, especially when ties occur or when the Top 10 changes due to other filters. What design change best ensures correct, deterministic interaction behavior?

A workbook uses a dataset built from a subject area. Analysts complain that applying a filter on a high-cardinality attribute (Customer Email) makes the workbook extremely slow, while filtering by Customer Segment is fast. You cannot change the source database indexes quickly. Which OAC-side action is MOST effective to improve the end-user experience without altering the underlying database?

You are designing the semantic model for a star schema with multiple fact tables at different grains (Sales at line level, Inventory snapshots daily, and Targets monthly). Business users want a single subject area where measures behave correctly with shared dimensions (Product, Store, Date). Which modeling approach best prevents incorrect measure aggregation and fan traps?

A subject area includes two physical sources for the same logical fact: a detailed transactional table and an aggregated table by Month, Product, and Region. After deployment, month-level queries still hit the detailed table, causing slow performance. The aggregated table is populated and accurate. What is the MOST likely semantic-layer configuration gap?

Your organization must enforce row-level security (RLS) based on a dynamic mapping table that links user identities to allowed Regions and Products. The mapping changes daily. Analysts use both subject areas and datasets derived from them. You need the RLS to apply consistently and minimize the risk of bypass when users create new datasets. What is the best approach?

You need near-real-time analytics in OAC from an operational system. Requirements: (1) data latency under a few minutes, (2) minimal load on the source OLTP, (3) ability to join with reference data already modeled in OAC, and (4) predictable performance for interactive dashboards. Which integration pattern best meets these requirements?