1Z0-1127-25 Using OCI Generative AI Service Practice Question
A developer needs to authenticate API calls to OCI Generative AI from a compute instance. Which TWO methods can be used?
⚠ Common exam trap
Candidates often confuse authentication methods (API key, resource principal) with unrelated security features (CMK, auth token, service connector), or assume that any token-based method (like auth token) works for all OCI API calls, when auth tokens are specifically for non-OCI-native APIs.
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
✓
Configure an API key in OCI IAM for the user
An API key configured in OCI IAM for a user provides a standard way to authenticate API calls. The developer can generate a key pair (public/private) in IAM, then use the private key to sign requests to the OCI Generative AI service. This method is widely used for programmatic access from compute instances when the instance is acting on behalf of a specific user.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure an API key in OCI IAM for the user
Why this is correct
API keys are a standard way to authenticate SDK/CLI requests to OCI services, including Generative AI.
- ✗
Configure a customer-managed key (CMK) for encryption
Why it's wrong here
CMKs are for encrypting data at rest, not for authentication.
- ✗
Set up a service connector to forward requests
Why it's wrong here
Service connectors move data between services, not for API authentication.
- ✓
Use resource principal with instance principals
Why this is correct
Instance principals allow compute instances to make API calls without managing credentials, using resource principals.
- ✗
Use an auth token from OCI Identity
Why it's wrong here
Auth tokens are used for Object Storage or third-party integrations, not for OCI Generative AI API authentication.
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