1Z0-997-26 Databases Practice Question
You are designing a multi-database architecture where applications require read-scaling across different geographic regions with minimal replication lag. You decide to deploy Autonomous Data Warehouse (ADW) instances across three regions connected via GoldenGate. Which feature of Autonomous Database can be leveraged alongside GoldenGate to prevent sequence cache duplication conflicts across regions?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configuring autonomous database global sequences with specific increment and offset parameters
When deploying multi-region distributed writes or replication architectures, utilizing Oracle Database features such as sequence caching with ORDER and NOORDER or scaling ranges prevents primary key collisions across nodes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Setting the database character set to AL32UTF8 to handle multi-region strings
Why it's wrong here
Incorrect. Character sets govern string encoding, not sequence generation or primary key collision avoidance.
- ✓
Configuring autonomous database global sequences with specific increment and offset parameters
Why this is correct
Correct. Using SEQUENCE ... INCREMENT BY <num_regions> START WITH <offset> avoids primary key conflicts across distributed multi-master or replicated nodes.
- ✗
Using Oracle Autonomous Health Framework to automatically resolve distributed deadlocks
Why it's wrong here
Incorrect. Health framework diagnoses issues; it does not configure multi-region sequence intervals.
- ✗
Enabling Autonomous Data Guard in Snapshot Standby mode in all regions simultaneously
Why it's wrong here
Incorrect. Data Guard does not support multi-master active-active writes across regions concurrently.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Oracle exam blueprint
This 1Z0-997-26 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-997-26 exam.