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These Oracle Cloud Infrastructure Developer Professional (1z0-1084-26) practice test questions are customizable and give real Oracle Cloud Infrastructure Developer Professional (1z0-1084-26) exam experience. Windows computers support desktop software. The web-based 1z0-1084-26 Practice Exam is supported by all browsers and operating systems.

Oracle 1z0-1084-26 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Testing and Securing Cloud Native Applications	13%	- Cloud Native Testing 1. Analyze and evaluate cloud native testing methodologies and develop effective strategies for testing cloud native applications - OCI Vault 1. Use OCI Vault to securely store and manage encryption keys and sensitive configuration information - Cloud Native Security 1. Apply security measures to overcome challenges with cloud native development
Topic 2: Cloud Native Applications and Containerization	33%	- OCI Registry 1. Use OCI Registry to pull and push container images - Oracle Kubernetes Engine 1. Develop and deploy containerized applications on Oracle Kubernetes Engine - Docker and Containerization 1. Explain Docker and the concepts around its architecture and components - Container Orchestration 1. Discuss the role of container orchestration
Topic 3: Leveraging Serverless Technologies for Cloud Native Development	33%	- OCI Events 1. Build event-driven serverless applications using OCI Events Service - Oracle Functions 1. Develop serverless applications with Oracle Functions - API Gateway 1. Create API gateways to process traffic from API clients and route it to back-end services - OCI Streaming 1. Create integration between systems using OCI Streaming Service - OCI Queue 1. Facilitate asynchronous messaging for microservices with OCI Queue
Topic 4: Monitoring & Troubleshooting Cloud Native Applications	10%	- OCI Logging 1. Use OCI Logging Service to enable, manage, and search logs - Monitoring, Logging, and Tracing 1. Perform tasks around monitoring, logging, and tracing - OCI Monitoring 1. Utilize OCI Monitoring Service to view metrics
Topic 5: Cloud Native Fundamentals	11%	- Cloud Native Principles 1. Explain the fundamentals of cloud native and discuss the key pillars of cloud native development - Microservices Architecture 1. Explain the microservices architecture and discuss the design methodology of microservices

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Oracle Cloud Infrastructure Developer Professional Sample Questions (Q48-Q53):

NEW QUESTION # 48
Which statement is NOT valid regarding autoscaling configurations in Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE)?

A. The Kubernetes Cluster Autoscaler can be deployed to automatically resize both managed node pools and virtual node pools when pod resource demands change.
B. The Kubernetes Vertical Pod Autoscaler is restricted to managed node pools and is not supported for adjusting resources on virtual node pools.
C. The Kubernetes Horizontal Pod Autoscaler is supported for adjusting the replica count of deployments running on both virtual node pools and managed node pools.
D. The Kubernetes Metrics Server can be deployed as a standalone program to collect resource metrics on both virtual node pools and managed node pools.

Answer: A

Explanation:
Oracle explicitly lists Kubernetes Cluster Autoscaler among the deploymentsnot supported when using OKE virtual nodes. Virtual nodes provide a serverless data-plane model in which Oracle manages the underlying compute capacity, so customers do not resize a conventional virtual-node pool through Kubernetes Cluster Autoscaler. Cluster Autoscaler remains applicable to managed node pools, where worker-node capacity can be increased or decreased according to scheduling demand. Oracle also identifies Vertical Pod Autoscaler as unsupported on virtual nodes, while Metrics Server is supported through a deployment method adapted for virtual nodes. Horizontal Pod Autoscaler operates at the pod/deployment level and can adjust replica counts without requiring customers to resize virtual-node infrastructure. Therefore, B is the NOT valid statement because it incorrectly claims Cluster Autoscaler can resize both managed and virtual node pools.

NEW QUESTION # 49
Which master encryption key shape algorithm must be used when configuring a customer-managed key to encrypt a secret in the Oracle Cloud Infrastructure (OCI) Vault?

A. Rivest-Shamir-Adleman (RSA)
B. Triple Data Encryption Standard (3DES)
C. Advanced Encryption Standard (AES)
D. Elliptic Curve Cryptography (ECC)

Answer: C

Explanation:
OCI Secret Management requires asymmetric encryption keywhen a Vault key is selected to encrypt secret contents. Oracle explicitly states that asymmetric keys cannot be used for secret encryption. Of the listed algorithms, AES is the supported symmetric key-shape algorithm; RSA and ECC are asymmetric algorithms, while 3DES is not an available OCI Vault master-key shape for this purpose. OCI Vault supports AES symmetric keys for encryption and decryption, typically using a 256-bit key length. Therefore, when creating a customer-managed key intended to protect OCI secrets, the appropriate key algorithm is Advanced Encryption Standard (AES). This requirement ensures that secret bundles can be encrypted and decrypted through the Vault cryptographic service.

NEW QUESTION # 50
You are deploying a containerized database application on a host using the standard Docker engine. To prevent data loss when the container instance is destroyed or updated, you must configure a storage mechanism that isolates application data from the volatile container layer and guarantees persistence. Which TWO statements or approaches correctly describe Docker storage components that satisfy this requirement?

A. Rely on the Docker image layer cache, which commits all runtime transactional database updates back to the read-only parent image.
B. Configure the temporary filesystem mount, which persists database writes directly into the host memory even if the container is terminated.
C. Utilize the default container writable layer, which automatically persists database writes to the host root disk after the container is removed.
D. Use Docker volumes, which are stored in a host directory fully managed by the Docker engine and protected from external host process modification.
E. Use Docker bind mounts, which map a specific arbitrary path from the host filesystem directly into the container storage namespace.

Answer: D,E

Explanation:
Persistent container data must be stored outside the container ' s ephemeral writable layer. Docker volumes provide Docker-managed storage that remains independently available from the lifecycle of an individual container. Bind mounts provide another persistence mechanism by mapping a specified host file or directory directly into the container. Oracle ' s Docker documentation demonstrates both data volumes and host-path mounts for externalizing files from containers and preserving them independently. The writable container layer is removed with the container, a tmpfs mount stores data in volatile memory rather than persistent disk, and Docker image layers are immutable and cannot receive normal runtime database writes. Therefore, Docker volumes and bind mounts are the two valid persistence approaches described.

NEW QUESTION # 51
Which statement is NOT valid regarding the OCI Vulnerability Scanning service (VSS) for container images stored in Oracle Cloud Infrastructure Registry (OCIR)?

A. A single container repository can be assigned to multiple scan targets in OCI Vulnerability Scanning to enforce different scan recipes.
B. When a container scan target is created, the service scans a specified initial number of images, one by default, in the target repositories.
C. Vulnerability reports for the scanned images are saved in the compartment containing the scan target, rather than the repository compartment.
D. To run container image scans, you must explicitly grant the OCI Vulnerability Scanning service IAM permission to pull images from the registry.

Answer: A

Explanation:
Oracle explicitly states that youcannot create a container image target using a repository that is already specified in another target. Therefore, a single OCIR repository cannot simultaneously be assigned to multiple Vulnerability Scanning targets simply to apply different recipes, making A invalid. Oracle also documents that a newly created target scans a configurable initial number of existing images, with one image being the default, and subsequently scans newly pushed images. Scan results are stored in the compartment containing the Vulnerability Scanning target, even when the repository resides elsewhere. Before creating a target, administrators must also grant Vulnerability Scanning permission to pull images from Container Registry.
Consequently, B, C, and D accurately describe documented VSS behavior.

NEW QUESTION # 52
Which statement is NOT valid regarding log retention periods in the Oracle Cloud Infrastructure (OCI) Logging service?

A. If a log ' s retention period is changed from six months to one month, all existing logs older than one month will no longer be accessible.
B. Audit logs are automatically generated and managed by the tenancy, with a fixed and unchangeable retention duration of 180 days.
C. For both service and custom logs, the log retention period can be set in 30-day increments up to a maximum of 180 days.
D. The exact future time and date that a specific log entry becomes unavailable is based on the precise creation timestamp of that log.

Answer: B

Explanation:
Statement D is NOT valid because OCIAudit logs are retained for 365 days, not 180 days. Oracle states that Audit retention is a tenancy-level setting affecting all regions and compartments and that its value cannot be changed. By contrast, OCI Logging service and custom logs support configurable retention in 30-day increments up to 180 days. Oracle also confirms that reducing a log ' s retention period makes existing data outside the new retention window unavailable and unsearchable. Therefore, the question intentionally distinguishes configurable Logging retention from the fixed OCI Audit retention model. The incorrect portion of D is specifically the stated 180-day duration; OCI Audit uses a 365-day retention period.

NEW QUESTION # 53
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