ADB Certification Exam 2025/2026 – 170+ Q&A | Oracle Autonomous DB, OCI, JSON, APEX, Security, Performance

This in-depth and updated study guide includes 170+ real-world questions and answers based on the Oracle Autonomous Database (ADB) Certification Exam 2025/2026, fully aligned with Oracle’s latest certification objectives. It is a complete preparation tool for mastering Autonomous Transaction Processing (ATP) and Autonomous Data Warehouse (ADW) environments within Oracle Cloud Infrastructure (OCI). Covered topics include ADB lifecycle management, wallet rotation, user access control, APEX and REST API integration, SQL and JSON support, indexing pipelines (LEXER, TOKENIZER), Data Load options, Autonomous JSON Database capabilities, Auto-Scaling, Always Free resource limits, backup and cloning, OCI metrics, performance tuning, and encryption key handling. Candidates will also gain insight into Exadata Infrastructure provisioning, Resource Manager configurations, alarms, Data Insight tools, and the use of cx_Oracle for Python interaction. Highly recommended for: Students in Cloud Computing, Information Technology, Database Administration, and Computer Science programs Professionals pursuing Oracle Cloud Infrastructure (OCI) and ADB/ADW/ATP certifications Developers and engineers in data-centric roles or transitioning to cloud-native systems Learners from technical colleges, Oracle Academy institutions, or global universities preparing for cloud database certification Whether you are preparing for the Oracle Autonomous Database Specialist or looking to upskill in cloud data solutions, this guide provides a structured, exam-ready format to ensure success. Keywords: ADB certification 2025, Oracle Autonomous Database, ADW, ATP, OCI wallet, Exadata provisioning, Auto-Scaling, SQL developer, REST API Oracle, JSON database, cx_Oracle Python, performance hub, hybrid columnar compression, Oracle APEX, cloud alarms, DBMS_CLOUD formats, wallet credentials