1Z0-1085-26 Core Oci Services Practice Question
An enterprise application deployed across multiple OCI subnets requires a Layer 4 load balancer that can handle millions of packets per second with ultra-low latency and preserve client source IP addresses. Which service should you deploy?
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
✓
Network Load Balancer
Network Load Balancer (NLB) operates at Layer 4, handles high throughput and packet rates with low latency, and preserves source IPs.
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 API Gateway
Why it's wrong here
API Gateway manages and secures API endpoints, operating at Layer 7.
- ✓
Network Load Balancer
Why this is correct
Network Load Balancer provides Layer 4 high-performance TCP/UDP load balancing preserving source IPs.
- ✗
Dynamic Routing Gateway
Why it's wrong here
DRG is a routing device, not a load balancer.
- ✗
Public Load Balancer (Layer 7)
Why it's wrong here
Layer 7 load balancers terminate HTTP/HTTPS connections and do not naturally preserve raw layer 4 client IPs without proxy headers.
Visual reference
About these practice questions
Courseiva writes every 1Z0-1085-26 question from scratch — 378 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 1Z0-1085-26 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 1Z0-1085-26 exam.