1Z0-1072-26 Storage Practice Question
You are troubleshooting an issue where an application cannot access an OCI Object Storage bucket. The IAM policies are verified as correct, and the object storage endpoint is reachable. However, the client receives HTTP 403 Forbidden errors when attempting to perform a GET request. The bucket is private. What could be causing this?
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
✓
The OCI KMS master encryption key associated with the bucket has been disabled or scheduled for deletion.
If a bucket is private and public access is blocked or IAM policies check out, pre-authenticated requests (PAR) or missing object-read permissions, or VCN Service Gateway restrictions could cause 403 errors. Another common cause is customer-managed encryption key state changes (e.g., the KMS key was disabled).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The VCN lacks an Internet Gateway, and traffic is attempting to go over the public internet.
Why it's wrong here
Access to Object Storage via a Service Gateway bypasses the internet, but lack of an IGW wouldn't cause 403s if internal routing is correct.
- ✓
The OCI KMS master encryption key associated with the bucket has been disabled or scheduled for deletion.
Why this is correct
If the encryption key protecting the bucket's objects is disabled, read and write operations will fail with authorization or forbidden errors.
- ✗
The bucket name is not globally unique within the tenancy.
Why it's wrong here
OCI prevents duplicate bucket names within a namespace, so creation would fail rather than yielding a runtime 403 on GET.
- ✗
The Object Storage bucket is configured in the Infrequent Access tier instead of Standard.
Why it's wrong here
Tiering affects retrieval pricing and time, not access authorization resulting in 403 errors.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Oracle exam blueprint
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