1Z0-1151-25 Question 28
Single answerYour company is building a multi-cloud solution integrated with AWS. The application runs on Amazon ECS but needs to store large volumes of data in OCI with frequent read and write operations. The solution must ensure high availability, secure connectivity between AWS and OCI, and use Object Storage for immediate data access. Which design approach best meets these requirements?
- A
Use the public internet from AWS to connect to an OCI Archive Storage bucket and rely on replication across multiple Availability Domains for data durability.
- B
Establish a FastConnect link from AWS to OCI with dynamic routing, store data in the Standard tier of Object Storage, and enable cross-region replication for high availability.
- C
Configure an IPSec VPN from AWS to a single OCI region, store frequently accessed data in the Infrequent Access tier of Object Storage, and maintain the bucket in one Availability Domain to reduce costs.
- D
Migrate the data to an OCI Block Volume attached to a single Compute instance for frequent read/writes, using the instance� local ephemeral storage for durability.
Show answer and explanation
Correct answer: B
Explanation
When integrating AWS and OCI for frequent, high-volume data transfers, a direct, private connection such as FastConnect is recommended for optimal performance and security. The Standard tier of Object Storage is ideal for workloads requiring frequent and immediate file access. Additionally, enabling cross-region replication strengthens high availability and disaster recovery. Refer to Oracle Cloud Infrastructure documentation on FastConnect and Object Storage best practices for more details.
- A. Incorrect.
Incorrect: Relying on public internet for constant data transfer is not optimal for performance or security. Additionally, Archive Storage is designed for data that can tolerate several hours of retrieval time, making it unsuitable for frequent read/write operations.
- B. Correct.
Correct: FastConnect offers a private, high-bandwidth, and low-latency connection suitable for frequent data transfers. Storing data in the Standard tier is optimal for immediate access, and cross-region replication ensures high availability and durability across different OCI regions.
- C. Incorrect.
Incorrect: While an IPSec VPN can provide secure connectivity, it may not offer the performance or bandwidth required for large volumes of data. The Infrequent Access tier is not suited for continuous high-frequency read/write, and using a single Availability Domain increases the risk of downtime.
- D. Incorrect.
Incorrect: Using a single Compute instance� Block Volume and ephemeral storage limits scalability and durability. Block Volumes are attached to specific Compute instances, and ephemeral storage is not intended for persistent data retention. This design does not satisfy the requirement for high availability across multiple domains.