The answer is deploying two dedicated AI clusters in different availability domains. This architecture meets the 99.9% SLA for high availability gen AI deployment at the lowest cost because OCI’s dedicated AI clusters are regional resources; replicating across availability domains within a single region protects against domain-level failures without incurring the cross-region data transfer and egress fees that make multi-region setups more expensive. On the Oracle Cloud Infrastructure Generative AI Professional 1Z0-1127 exam, this question tests your ability to balance HA requirements with cost optimization—a common trap is assuming multi-region is necessary for high availability, but OCI’s regional SLA already covers 99.9% with intra-region redundancy. Remember the memory tip: “Two domains, one region—lowest cost with high availability protection.”
1Z0-1127 Deploying and Managing Generative AI on OCI Practice Question
This 1Z0-1127 practice question tests your understanding of deploying and managing generative ai on oci. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A machine learning engineer evaluates OCI Generative AI for a real-time content generation application. They need to meet a SLAs of 99.9% availability. Which deployment architecture satisfies the requirement with the lowest cost?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Two dedicated AI clusters in different availability domains.
Option B is correct because deploying two dedicated AI clusters in different availability domains within a single region provides high availability (HA) to meet the 99.9% SLA while minimizing cost. OCI's dedicated AI clusters are regional resources, and placing replicas across availability domains protects against domain-level failures without the cross-region data transfer and egress costs incurred by multi-region deployments.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Two dedicated AI clusters in different regions.
Why it's wrong here
Cross-region deployment incurs higher cost and latency, overkill for 99.9% SLA.
✓
Two dedicated AI clusters in different availability domains.
Why this is correct
Clusters in different ADs provide resilience against AD failures at moderate cost.
Related concept
Read the scenario before looking for a memorised answer.
✗
Two dedicated AI clusters in the same availability domain.
Why it's wrong here
Same AD shares physical infrastructure; an AD failure would affect both.
✗
Single dedicated AI cluster with a single replica.
Why it's wrong here
A single replica is a single point of failure and cannot meet 99.9% SLA.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume multi-region deployment is required for high availability, but OCI's 99.9% SLA can be achieved within a single region using availability domains, making the cross-region option unnecessarily expensive.
Detailed technical explanation
How to think about this question
OCI's dedicated AI clusters are provisioned within a single region and can span multiple availability domains. The 99.9% SLA typically requires at least two replicas in separate fault domains or availability domains to survive a single point of failure. Under the hood, OCI uses a distributed control plane and data plane; cross-region replication adds latency and egress costs that are unnecessary when the SLA can be met within a region. In a real-world scenario, a customer running a real-time content generation app would prioritize low latency and cost, making intra-region HA the optimal choice.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 1Z0-1127 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Deploying and Managing Generative AI on OCI — This question tests Deploying and Managing Generative AI on OCI — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Two dedicated AI clusters in different availability domains. — Option B is correct because deploying two dedicated AI clusters in different availability domains within a single region provides high availability (HA) to meet the 99.9% SLA while minimizing cost. OCI's dedicated AI clusters are regional resources, and placing replicas across availability domains protects against domain-level failures without the cross-region data transfer and egress costs incurred by multi-region deployments.
What should I do if I get this 1Z0-1127 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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