IT Certifications · 1Z0-1084-26

Oracle Cloud Infrastructure Developer Professional Exam Practice Test

The Oracle Cloud Infrastructure Developer Professional Exam practice page focuses on application development tasks in OCI, including working with structured data, logging, secrets, and asynchronous service operations. Practice scenarios also use infrastructure-as-code, application packaging, automated builds, load balancing, and private connectivity to a database from a serverless function.

Exam overview

Exam providerOracle
Exam code1Z0-1084-26
CategoryIT Certifications

About the Oracle Cloud Infrastructure Developer Professional Exam

The question bank’s scenarios draw on decisions developers make while building and deploying cloud applications. They include validating JSON against a defined structure, adding searchable fields to log records, and tracking a secret’s version when retrieving content from OCI Vault. Other examples involve recognizing a work request identifier in a service response and using Terraform variables to let another team provide deployment-specific values. Build and runtime scenarios include choosing a Java archive format, automating image builds after source changes, distributing traffic across healthy virtual machines, and arranging VCN access from a function to a private database endpoint. These tasks connect application code with OCI services and deployment configuration, so practice can help you reason about how data, identity-sensitive values, infrastructure, and network paths interact.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A developer needs to validate that an incoming JSON document conforms to a defined structure before processing it. Which approach is most suitable?

  1. AValidate it against a JSON Schema
  2. BEncrypt it with a TLS certificate
  3. CStore it in a subnet security list
  4. DConvert it to a DNS record
Show answerCorrect answer: A

JSON Schema describes expected JSON structure, types, and constraints, and a validator can check an incoming document against that definition before application logic uses it. Encryption and network configuration do not validate JSON structure.

Question 2

A developer wants to add searchable application-specific fields to OCI log entries, such as tenant ID and operation name, so they can be used in queries. What should the application include in its log records?

  1. AStructured fields in the log payload
  2. BA subnet route rule
  3. CA DNS resolver rule
  4. DA load balancer backend set
Show answerCorrect answer: A

Including structured fields in log records makes application context available for filtering and querying, assuming the logging pipeline preserves and parses those fields. Networking components such as route rules and backend sets do not add searchable log metadata.

Question 3

An application needs to retrieve a value from OCI Vault and must detect if the secret has been rotated since the value was last read. Which secret property should it track when retrieving secret content?

  1. AThe secret version number
  2. BThe vault's VCN security list
  3. CThe secret's compartment OCID only
  4. DThe key's storage tier
Show answerCorrect answer: A

OCI Vault secrets can have versions. Tracking the version lets an application identify which secret content it has consumed and notice when a newer version becomes available. Compartment identity does not identify content revisions, and the other properties are unrelated.

Question 4

An application submits a long-running operation to an OCI service and receives an identifier for tracking the operation. Which response header commonly carries the work request identifier?

  1. AContent-Type
  2. Bopc-work-request-id
  3. CETag
  4. DRetry-After
Show answerCorrect answer: B

OCI services that expose work requests commonly return an opc-work-request-id header. A client can use that identifier to query the operation's progress and eventual result.

Question 5

A developer wants to share a reusable OCI infrastructure definition with another team while allowing that team to supply its own deployment values. Which Terraform feature is designed to parameterize the definition?

  1. ATerraform variables
  2. BTerraform state locking
  3. CProvider aliases
  4. DProvisioners
Show answerCorrect answer: A

Terraform input variables parameterize configuration, allowing users to provide values such as names, shapes, or compartment identifiers without changing the reusable definition. State locking protects state operations; provider aliases and provisioners address other needs.

Question 6

A developer must ensure that a configuration value stored in OCI Vault is encrypted using a customer-managed key. Which Vault resource is used to encrypt and decrypt secret contents?

  1. AA dynamic group
  2. BA vault secret bundle
  3. CA master encryption key
  4. DA security list
Show answerCorrect answer: C

OCI Vault master encryption keys are used to encrypt and decrypt protected data, including secret contents. A secret stores the secret material and refers to a key for encryption; a secret bundle represents retrieved secret content and metadata.

Question 7

A developer is packaging a Java application for deployment and wants a standard archive containing compiled classes and metadata. Which artifact format is typically used for a Java application?

  1. AJAR
  2. BWAV
  3. CPEM
  4. DCSV
Show answerCorrect answer: A

A Java Archive (JAR) packages Java classes and associated resources, and may include metadata such as a manifest. The other formats are not standard Java application archive formats.

How to use this practice test

The free practice set draws up to 20 random questions from the 50-question bank for a session. Work through each scenario by identifying the requirement—such as schema validation, secret rotation, build automation, or private access—before selecting an OCI approach. Results appear after the session, giving you a quick way to spot topics to revisit.

Preparation tips

  • Practice validating incoming JSON against a schema, and distinguish structural validation from application-specific business checks.
  • For OCI Vault scenarios, connect secret content retrieval with version tracking, and distinguish the secret from the customer-managed key used to protect it.
  • Review OCI service response patterns for asynchronous work, including how a client obtains and uses a work request identifier.
  • Trace a deployment path from Terraform inputs through automated image builds, then consider how a load balancer routes traffic to healthy compute instances.
  • Draw the network path from an OCI function to a private database endpoint, including the VCN arrangement required for private connectivity.
Official sourceOfficial exam page ↗