1Z0-1085-26 Core Oci Services Practice Question
An administrator is setting up an OCI File Storage (FSS) mount target in a specific subnet. When attempting to mount the file system from a compute instance in a different subnet within the same VCN, the mount command hangs. What must be configured to allow this connection?
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 security rules (Security Lists or NSGs) allowing NFS traffic (ports 111, 2048, 2049, 2050) to the mount target.
Access to File Storage requires security rules allowing TCP and UDP ports 111, 2048, 2049, and 2050 for NFS traffic between the compute instance and the FSS mount target.
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 security rules (Security Lists or NSGs) allowing NFS traffic (ports 111, 2048, 2049, 2050) to the mount target.
Why this is correct
NFS requires specific ports open in the security lists or NSGs associated with the mount target subnet.
- ✗
Add a NAT Gateway to translate NFS packets across subnets.
Why it's wrong here
NFS traffic within the same VCN does not require a NAT Gateway.
- ✗
Attach the File Storage volume directly to the compute instance via iSCSI.
Why it's wrong here
File Storage is an NFS network file system and cannot be attached via iSCSI.
- ✗
Create a Local Peering Gateway between the two subnets.
Why it's wrong here
Local Peering Gateways connect different VCNs, not subnets within the same VCN.
Visual reference
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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
This 1Z0-1085-26 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-1085-26 exam.