1Z0-997-26 Databases Practice Question
You are configuring an Autonomous Database instance and need to restrict incoming database traffic so that only specific corporate subnet CIDR blocks can access the database service endpoints. Which feature should you configure?
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
✓
Autonomous Database Access Control Lists (ACLs) specifying allowed IP CIDR blocks
Access Control Lists (ACLs) on Autonomous Database allow administrators to restrict network access using IP addresses or VCN OCIDs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
OCI Web Application Firewall (WAF) attached directly to the database listener port
Why it's wrong here
Incorrect. WAF protects HTTP/HTTPS traffic, not direct SQL/TNS database traffic.
- ✗
OCI Identity and Access Management dynamic groups
Why it's wrong here
Incorrect. IAM dynamic groups handle resource principal authorizations, not network layer IP filtering.
- ✗
Database Vault realm restrictions
Why it's wrong here
Incorrect. Oracle Database Vault secures internal database data against privileged users, not network ingress IPs.
- ✓
Autonomous Database Access Control Lists (ACLs) specifying allowed IP CIDR blocks
Why this is correct
Correct. ACLs restrict inbound connectivity to specified IP addresses or VCN endpoints.
Visual reference
About these practice questions
This 1Z0-997-26 question is part of Courseiva's 348-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.