1Z0-997-26 High Availability And Disaster Recovery Practice Question
You are managing an Oracle Base Database Service instance and need to configure Data Guard to provide disaster recovery in another OCI region. Which prerequisite must be met before creating the Data Guard association?
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
✓
Establish network connectivity between the primary and standby VCNs using a DRG and remote VCN peering.
Cross-region Data Guard requires remote VCN peering via a Dynamic Routing Gateway (DRG) or local peering if regional, and proper security list/NSG rules allowing traffic on ports such as 1521.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Establish network connectivity between the primary and standby VCNs using a DRG and remote VCN peering.
Why this is correct
Cross-region database replication requires established network connectivity between the respective Virtual Cloud Networks.
- ✗
Ensure the standby database has a larger shape than the primary database.
Why it's wrong here
The standby database shape should be equal to or appropriately sized for workload, but it is not a prerequisite constraint.
- ✗
Manually install the Oracle Data Guard binaries on the standby database compute instance prior to association.
Why it's wrong here
OCI automates the deployment and configuration of Data Guard binaries through the console/API.
- ✗
Convert the primary database to an Autonomous Database instance.
Why it's wrong here
Data Guard can be configured on Base Database Systems without converting to Autonomous Database.
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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.