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Transit Virtual Interfaces

5 minutes 5 Questions

Transit Virtual Interfaces (transit VIFs) are a type of AWS Direct Connect virtual interface that enables you to use AWS Direct Connect to connect your on-premises network with AWS Transit Gateway resources. Transit VIFs provide a single interface for connecting multiple VPCs through the AWS Transi…

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AWS Certified Solutions Architect - Transit Virtual Interfaces Example Questions

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Question 1

An organization is running workloads across multiple VPCs in a region. They have implemented a Direct Connect connection between their on-premises data center and Amazon VPC. They would like to utilize a transit virtual interface to access VPCs from the on-premises data center. What should they do?

Correct Answer: Create a Direct Connect Gateway and associate it with the transit virtual interface and VPCs

The correct solution is to create a Direct Connect Gateway, as it supports transit virtual interfaces and can be associated with multiple VPCs in a region, allowing VPCs to be accessed from the on-premises data center. Private virtual interfaces, public virtual interfaces, VPNs, PrivateLinks, and transit VPCs do not support this use case.

Question 2

A company has recently established a Direct Connect connection to their VPC. They need to create a transit virtual interface to use with Direct Connect Gateway and interconnect multiple VPCs. Which is the best approach to solve the problem?

Correct Answer: Create a transit virtual interface and associate it with the Direct Connect Gateway

The correct answer is to create a transit virtual interface, as it allows for connecting multiple VPCs to a Direct Connect Gateway. Private, public, and hosted connections, as well as transit VPCs and AWS VPNs, do not meet the requirement of interconnecting multiple VPCs.

Question 3

An organization is using Direct Connect to connect their on-premises network to AWS. They want to optimize the data transfer cost between their on-premises data center and multiple VPCs in different regions. What should they do to achieve this?

Correct Answer: Create a Direct Connect Gateway with transit virtual interfaces and configure inter-region peering

The correct solution is to create a Direct Connect Gateway with transit virtual interfaces, as it allows for inter-region peering and optimizes data transfer costs between an on-premises data center and multiple VPCs in different regions. Individual Direct Connect connections, Site-to-Site VPNs, VPC peering, Virtual Private Gateways, and transit VPCs do not offer the same level of cost optimization.

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