20+ practice questions focused on Cloud Native Architecture — one of the most tested topics on the Oracle Cloud Infrastructure 2026 Architect Professional (1Z0-997-26) (1Z0-997-26) exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Cloud Native Architecture PracticeYou are designing an event-driven architecture on OCI where events from Object Storage bucket creations need to trigger an OCI Function. However, you require guaranteed at-least-once delivery, event filtering based on object name prefixes, and a dead-letter queue mechanism for failed function invocations. Which OCI service combination meets these requirements?
Explanation: OCI Events Service can route events to OCI Streams, which provide durable, at-least-once delivery and allow custom consumer groups to process events. By configuring a DLQ on the function invocation, failed invocations are captured. This combination meets all requirements: guaranteed delivery, filtering (via Events rules), and DLQ.
Your containerized microservices running on OKE need to securely connect to an Oracle Autonomous Database without embedding plain-text database credentials inside Kubernetes Secrets. Which OCI feature integrates OKE service accounts with OCI IAM to provide secure, credential-less access?
Explanation: OCI IAM Workload Identity for OKE allows Kubernetes service accounts to be mapped to OCI IAM policies via dynamic groups, so pods can authenticate to OCI services like Autonomous Database using short-lived tokens instead of static credentials. This eliminates the need to store plain-text DB passwords in Kubernetes Secrets, since the pod's service account identity is federated directly to OCI IAM.
You are managing an OKE cluster where developer teams frequently deploy new microservice versions. You need to implement a canary deployment strategy where 10% of production traffic is automatically routed to the new version while 90% goes to the stable version, without rewriting your application code. Which tool or pattern should you use?
Explanation: OCI Service Mesh provides traffic split rules that allow weighted routing between Kubernetes services without application code changes. By defining a VirtualDeployment and HTTPRoute with weighted backends (e.g., 90/10), you achieve canary deployments natively at the mesh layer. This is the idiomatic OCI-native pattern for progressive delivery on OKE.
Your development team needs to build and push container images to a secure, private registry hosted on OCI before deploying them to OKE. Which OCI service should they use?
Explanation: OCI Registry (OCIR) is Oracle's managed, private Docker/OCI-compliant container registry service used to store, version, and distribute container images that are then pulled by OKE clusters. It integrates natively with OCI IAM for authentication and supports both public and private repositories, making it the correct choice for pushing images before OKE deployment. Developers authenticate with an auth token and use standard docker push/pull commands against the regional OCIR endpoint.
Your OKE cluster has multiple worker node pools. You want to ensure that a specific set of resource-intensive machine learning microservices pods are scheduled *only* on dedicated GPU worker nodes, preventing them from running on standard CPU worker nodes. Which Kubernetes feature should you apply to your pods and node pools?
Explanation: To ensure pods run only on dedicated GPU nodes, you apply taints to the GPU node pools (e.g., nvidia.com/gpu=true:NoSchedule) and matching tolerations to the ML microservice pods. Taints repel pods that do not tolerate them, and tolerations allow the specific pods to be scheduled onto the tainted nodes. This is the standard Kubernetes mechanism for dedicating nodes to specific workloads.
+15 more Cloud Native Architecture questions available
Practice all Cloud Native Architecture questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Cloud Native Architecture. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Cloud Native Architecture questions on the 1Z0-997-26 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Cloud Native Architecture is tested as part of the Oracle Cloud Infrastructure 2026 Architect Professional (1Z0-997-26) (1Z0-997-26) blueprint. Practicing with targeted Cloud Native Architecture questions ensures you can handle any format or difficulty that appears.
Yes. Courseiva provides free 1Z0-997-26 practice questions across all exam topics and domains. The platform includes topic-based practice, mock exams, missed-question review, bookmarked questions, and readiness tracking — no account required.
Difficulty is subjective, but Cloud Native Architecture is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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