1Z0-1072-26 Storage — 50 Questions

Question 1

A company needs to migrate 50 TB of on-premises NAS data into OCI Object Storage over a high-speed dedicated network connection. Which OCI service should be utilized for this network-based transfer?

Accepted Answer

OCI Storage Gateway. OCI Storage Gateway or File Transfer tools over FastConnect are options, but for direct high-speed object ingestion, OCI Storage Gateway or parallelized CLI/API multipart uploads over FastConnect are standard. Specifically, for migrating NAS data directly, OCI Storage Gateway allows on-premises applications to interact with OCI Object Storage.

Answer

OCI Data Transfer Appliance

Answer

OCI File Storage Service Mount Target

Answer

OCI Archive Storage Uploader

Question 2

Which OCI storage service is best suited for hosting shared configuration files and home directories for hundreds of Linux compute instances simultaneously using the NFSv3 protocol?

Accepted Answer

OCI File Storage Service. File Storage Service (FSS) provides a distributed, scalable, enterprise-grade network file system that supports the NFSv3 protocol for concurrent access from multiple instances.

Answer

OCI Object Storage

Answer

OCI Archive Storage

Answer

OCI Block Volume

Question 3

An administrator wants to create a point-in-time, space-efficient replica of an existing Block Volume within the same availability domain. Which feature should be used to achieve this instantly?

Accepted Answer

Block Volume Clone. Block Volume clones allow you to create an instant, point-in-time, replica of a block volume within the same availability domain without needing to create a full backup first.

Answer

Block Volume Backup

Answer

Cross-Region Replication

Answer

Volume Group Backup

Question 4

A company is running an enterprise application on OCI that requires high IOPS and low latency for its database files. The administrator needs to attach a block volume that can dynamically scale performance beyond its default capacity limits without having to detach the volume. Which Block Volume performance level should be selected?

Accepted Answer

Higher Performance. Higher Performance provides the highest IOPS and throughput per GB, and volumes can be dynamically scaled up to higher performance tiers or resized without downtime.

Answer

Lower Cost

Answer

Ultra High Performance

Answer

Balanced

Question 5

An administrator has created a File Storage Service (FSS) file system in a private subnet. Developers need to mount this file system on compute instances across three different availability domains within the same region. What is the correct way to configure network access for FSS?

Accepted Answer

Deploy a mount target in one subnet and configure security lists to allow NFS traffic from instances in all required subnets.. FSS is regional and can be mounted across availability domains in the same region, provided that mount targets are accessible via appropriate security lists and subnet routes.

Answer

Attach the Block Volume to multiple instances simultaneously across availability domains.

Answer

Create a separate FSS file system in each availability domain and peer them.

Answer

Use an OCI FastConnect circuit to route NFS traffic between availability domains.

Question 6

An organization requires that all data uploaded to an Object Storage bucket must be automatically encrypted using a master encryption key managed by them in OCI Key Management (KMS), rather than Oracle-managed keys. How can this be enforced?

Accepted Answer

Configure the bucket during creation to use a Customer-Managed Key from OCI KMS.. When creating a bucket, you can select 'Use Customer-Managed Keys' and choose your vault and master encryption key from OCI KMS.

Answer

Apply an IAM policy stating that all PutObject API calls must pass customer secret keys in the header.

Answer

Enable SSE-C (Server-Side Encryption with Customer-Provided Keys) on every individual file upload via CLI.

Answer

Write a custom OCI Functions script triggered by Object Storage events to re-encrypt objects using KMS.

Question 7

A team is using OCI File Storage Service and needs to protect against accidental deletion of files by end users. Which feature should be implemented?

Accepted Answer

FSS Snapshots. File Storage Service supports snapshots, which are read-only, point-in-time versions of a file system that allow users to recover accidental deletions.

Answer

Object Storage Lifecycle Policies

Answer

FSS Object Versioning

Answer

Block Volume Volume Groups

Question 8

An OCI administrator needs to store large amounts of unstructured data that is accessed infrequently, but must be retained for compliance purposes for at least 5 years. Data retrieval times of up to 4 hours are acceptable. Which OCI Object Storage tier should be used?

Accepted Answer

Archive Storage Tier. OCI Archive Storage is designed for data that is infrequently accessed and requires long retention periods, offering the lowest storage cost with a time-to-first-byte retrieval time of up to 4 hours.

Answer

Object Storage Standard Tier

Answer

Object Storage Infrequent Access Tier

Answer

File Storage Service

Question 9

You need to configure an Object Storage lifecycle policy to automatically transition objects from the Standard tier to the Infrequent Access tier after 30 days, and then delete them after 365 days from creation. How should the rule be defined?

Accepted Answer

Create a single rule with transition after 30 days to Infrequent Access and deletion after 365 days.. Lifecycle rules use offset values based on object creation time. Transition and deletion rules can be chained by specifying days relative to the object's age.

Answer

Configure an event rule in OCI Events Service to trigger a function that modifies the storage tier after 30 days.

Answer

Set the bucket storage policy to automatically purge objects after 365 days and use Object Versioning to handle the 30-day tier shift.

Answer

Create two separate rules: one for transition at 30 days and another rule evaluated independently for deletion at 335 days.

Question 10

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?

Accepted Answer

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

The VCN lacks an Internet Gateway, and traffic is attempting to go over the public internet.

Answer

The bucket name is not globally unique within the tenancy.

Answer

The Object Storage bucket is configured in the Infrequent Access tier instead of Standard.

Question 11

An administrator needs to back up a critical Oracle Database running on an OCI Block Volume. The database spans across three separate block volumes that must be backed up simultaneously to ensure crash consistency. What is the most efficient feature to use?

Accepted Answer

OCI Volume Groups. Volume Groups allow you to group multiple block volumes together and perform coordinated operations like backups, clones, and cross-region replications simultaneously.

Answer

Object Storage Multipart Upload

Answer

Individual Block Volume Backups triggered sequentially

Answer

FSS Snapshots

Question 12

What is the maximum size of a single object that can be uploaded to OCI Object Storage using a single PUT request?

Accepted Answer

10 TiB. For standard single PUT operations, the maximum object size is 50 GiB. Larger files require multipart uploads.

Answer

5 TiB

Answer

100 GiB

Question 13

You are configuring an Object Storage bucket and want to ensure that if an object is accidentally overwritten or deleted, previous versions can still be retrieved. Which feature should you enable?

Accepted Answer

Object Versioning. Object Versioning preserves multiple variants of an object in the same bucket, protecting against accidental overwrites and deletions.

Answer

Cross-Region Replication

Answer

Object Storage Lifecycle Management

Answer

Bucket Retention Rules

Question 14

An administrator wants to automate the process of copying Block Volume backups from the Ashburn region to the Phoenix region for disaster recovery purposes. What is the recommended method?

Accepted Answer

Attach a cross-region replication policy to the Block Volume backup policy.. Block Volume backups can be configured for automatic cross-region replication by setting up a backup policy with copy rules to destination regions.

Answer

Manually export the volume to an Object Storage bucket and download it in the second region.

Answer

Configure an OCI Object Storage lifecycle rule to replicate files across regions.

Answer

Write an OCI Data Flow application to stream volume blocks across regions.

Question 15

Which OCI Object Storage feature enables users without an OCI account to securely download or upload a specific object via a generated URL with a defined expiration time?

Accepted Answer

Pre-Authenticated Requests (PAR). Pre-authenticated requests (PAR) provide a way to let users securely access or upload a specific object or bucket without requiring credentials, using a unique URL with an expiration time.

Answer

OCI IAM Federation

Answer

API Signing Keys

Answer

Object Storage Public Access Buckets

Question 16

An administrator is managing an OCI File Storage Service file system and notices that storage consumption has grown significantly. They want to identify which directories and users are consuming the most space. How can this be accomplished?

Accepted Answer

Mount the file system on a compute instance and use standard Linux tools such as 'du' or quota management.. OCI File Storage Service does not provide a native per-directory usage reporting dashboard within the console, but administrators can mount the file system and use standard Linux utilities (like du or quota tools if configured via NFS) to analyze storage consumption.

Answer

View the Storage Consumption metric in OCI Monitoring service aggregated by directory path.

Answer

Check the Object Storage Metrics explorer for FSS bucket utilization.

Answer

Enable FSS Analytics in the OCI Console under Storage Administration.

Question 17

Which TWO actions can be performed on an active OCI Block Volume without detaching it from the compute instance? (Choose two.)

Accepted Answer

Change the volume from Balanced performance tier to Higher Performance tier. OCI Block Volumes support live resizing and dynamic performance tier adjustments without requiring volume detachment.

Answer

Delete the block volume while it is attached

Answer

Migrate the volume to a different availability domain

Answer

Convert a block volume into a File Storage Service mount target

Question 18

Which THREE statements are true regarding OCI Object Storage architecture and data durability? (Choose three.)

Accepted Answer

Checksums are automatically calculated and verified for data integrity.. OCI Object Storage is designed for high durability, stores data redundantly across availability domains or fault domains, and supports strong consistency for all operations.

Answer

Object Storage provides eventual consistency for bucket listing operations.

Answer

Objects larger than 50 GiB must be stored using Block Volume instead.

Question 19

Which TWO features are supported by OCI File Storage Service (FSS)? (Choose two.)

Accepted Answer

Encryption at rest using customer-managed keys in OCI KMS. OCI File Storage Service supports snapshots for data protection and encryption using customer-managed keys via OCI KMS.

Answer

Block-level multi-attach with read-write access across availability domains

Answer

Automatic tiering from file storage to Archive Storage

Answer

Native integration with Block Volume replication policies

Question 20

Which TWO methods can be used to transfer data from an on-premises data center into OCI Object Storage? (Choose two.)

Accepted Answer

OCI Data Transfer Appliance for offline data migration. On-premises data can be uploaded to Object Storage via the OCI CLI/API over the public internet or private VCN connections (FastConnect), or shipped physically using Data Transfer Appliances.

Answer

Directly mounting an Object Storage bucket as a local Windows NTFS drive via SMB protocol

Answer

Attaching an Object Storage bucket as an LVM logical volume to an on-premises server

Answer

Using Block Volume Export to push data into Object Storage buckets automatically