1Z0-1151-25 Question 25
Single answerA company has a multi-cloud architecture with an application front end hosted on Amazon Web Services (AWS) and a mission-critical Oracle Database on Oracle Cloud Infrastructure (OCI). They need to ensure a private, high-throughput connection with minimal latency between AWS and OCI for real-time transaction processing. Which approach is recommended to achieve this requirement?
- A
Deploy an Internet Gateway in OCI and route all inter-cloud traffic over the public internet.
- B
Set up a Private Load Balancer in OCI and assign a public IP address to receive traffic from AWS.
- C
Configure a VPN Connect IPsec tunnel between the AWS VPC and the OCI VCN.
- D
Provision OCI FastConnect and AWS Direct Connect with a partner to establish a private link between the two environments.
Show answer and explanation
Correct answer: D
Explanation
To achieve a private, high-performance interconnection between AWS and OCI, organizations commonly use OCI FastConnect in tandem with AWS Direct Connect via a network partner. This setup offers a dedicated circuit that can handle large volumes of data with minimal latency. For more details, refer to the OCI documentation on FastConnect (https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/fastconnectoverview.htm) and AWS documentation on Direct Connect (https://aws.amazon.com/directconnect/).
- A. Incorrect.
Incorrect. Relying on a public internet gateway does not provide the private connectivity or the guaranteed throughput needed for mission-critical workloads. Although traffic can be encrypted end-to-end, performance and latency would vary significantly.
- B. Incorrect.
Incorrect. A Private Load Balancer in OCI can handle traffic internally within OCI, but assigning a public IP for front-end traffic means you are still routing through the public internet from AWS, which does not ensure a dedicated high-throughput link.
- C. Incorrect.
Incorrect. While an IPsec VPN tunnel provides secure connectivity, it typically does not deliver the high bandwidth and minimized latency required by performance-sensitive applications. VPN tunnels are generally better suited to lower-volume or backup scenarios.
- D. Correct.
Correct. OCI FastConnect and AWS Direct Connect, when provisioned through a compatible network service provider, enable a dedicated, private link between AWS and OCI. This approach delivers low latency, higher throughput, and more consistent performance for mission-critical workloads.