Learn how to use AWS Direct Connect SiteLink to enhance connectivity and reliability between two data centers in different regions. Follow this expert solution for the AWS Certified Advanced Networking ANS-C01 exam.
Table of Contents
Question
A company has two on-premises data centers. The first data center is in the us-east-1 Region. The Second data canter is in the us-east-2 Region. Each data center connects to the closest AWS Direct Connect facility. The company uses Direct Connect connections, transit VIFs, and a single Direct Connect gateway to establish connectivity to VPCs in us-east-1 and us-east-2 from the company’s data centers. The company also has private connectivity from a telecommunications provider that connects the first data center to the second data center.
Recently, there have been multiple connection disruptions to the private connectivity between the data centers. The company needs a solution to improve the reliability of the connection between the two data centers.
Which solution will meet these requirements?
A. Create a new Direct Connect gateway. Enable the Direct Connect SiteLink feature on the transit VIF. Share the CIDR blocks from the first data center and the second data center with each other.
B. Create a new public VIF to both Regions. Enable the Direct Connect SiteLink feature on the new public VIF.
C. Enable the Direct Connect SiteLink feature on the existing Direct Connect connections.
D. Enable the Direct Connect SiteLink feature on the existing transit VIFS that are attached to the existing Direct Connect gateway.
Answer
The correct solution to improve the reliability of the connection between the two data centers is:
D. Enable the Direct Connect SiteLink feature on the existing transit VIFs that are attached to the existing Direct Connect gateway.
Explanation
AWS Direct Connect SiteLink allows you to connect two Direct Connect locations together using a private network, without traversing the public internet or using a VPN connection. This feature provides a high-bandwidth, low-latency, and secure connection between the two locations.
In this scenario, the company already has Direct Connect connections, transit VIFs, and a Direct Connect gateway set up to connect their data centers to VPCs in us-east-1 and us-east-2. To improve the reliability of the connection between the two data centers, they should enable the Direct Connect SiteLink feature on the existing transit VIFs attached to the Direct Connect gateway.
By enabling SiteLink on the transit VIFs, the company can:
- Establish a private, dedicated connection between the two data centers using the existing Direct Connect infrastructure.
- Avoid using the problematic private connectivity provided by the telecommunications provider.
- Improve the reliability and performance of data transfer between the data centers.
- Maintain the existing connectivity to the VPCs in us-east-1 and us-east-2 through the Direct Connect gateway.
Options A and B are incorrect because they involve creating new Direct Connect gateways or public VIFs, which are not necessary in this case. The company already has the required Direct Connect setup in place.
Option C is incorrect because enabling SiteLink on the Direct Connect connections themselves will not solve the issue. SiteLink needs to be enabled on the transit VIFs attached to the Direct Connect gateway to establish the private connection between the data centers.
Amazon AWS Certified Advanced Networking – Specialty ANS-C01 certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Advanced Networking – Specialty ANS-C01 exam and earn Amazon AWS Certified Advanced Networking – Specialty ANS-C01 certification.