Connectivity Options for Low Latency, Consistency, and High Performance
Question
You have been asked to set up connectivity between a client's on-premises network and Oracle Cloud Infrastructure (OCI)
The requirements are: -> Low latency: The applications are financial and require low latency connectivity into OCI.
-> Consistency: The application isn't tolerant of performance variation.
-> Performance: The communications link needs to support up to 1.25 Gbps.
-> Encryption: The communications link needs to encrypt any data in transit between the on-premises network and OCI Virtual Cloud Network (VCN)
The client wants to implement the above with as low a cost as possible, while meeting all of the requirements.
What should you suggest? (Choose the best answer.)
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D. E.D.
https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/fastconnectoverview.htmBased on the requirements provided, the best solution would be to provision FastConnect with a single private virtual circuit, and run an IPsec VPN tunnel over the top of this virtual circuit. Here's why:
Low latency: FastConnect provides a dedicated, private connection between your on-premises network and OCI, resulting in lower latency than using a VPN over the public internet.
Consistency: Since the connection is dedicated, there is less chance of performance variation compared to using a VPN over the public internet.
Performance: FastConnect can support up to 100 Gbps, so a 1.25 Gbps connection is easily achievable.
Encryption: FastConnect provides the option to use private virtual circuits, which can be configured with encryption, ensuring that any data in transit between your on-premises network and the VCN is secure.
Low cost: FastConnect pricing is based on the speed of the connection and is generally lower than using a VPN over the public internet.
Option A is the best choice because it meets all the requirements of the client at the lowest possible cost. It provides a private, high-bandwidth, low-latency, and secure connection between the on-premises network and the VCN. The IPsec VPN tunnel provides an additional layer of encryption to ensure data security in transit.
Option B is not recommended because it does not provide a private connection, and the latency and performance may be affected by other traffic on the public internet.
Option C provides a secure connection through VPN Connect but is not recommended due to the lower performance and potential for inconsistent performance compared to FastConnect.
Option D provides a private connection but lacks the additional layer of encryption provided by the IPsec VPN tunnel.
Option E provides a public connection with an IPsec VPN tunnel, but it is not recommended due to the potential for inconsistent performance over the public internet.
