AWS Certified Advanced Networking Specialty Practice Exam

Hosted Virtual Interfaces (VIFs) on AWS Direct Connect are associated with which scenario?

1. A customer providing a VIF to another customer on their connection

2. A virtual private cloud connection for a single account

3. Direct connection to an on-premises application

4. A non-AWS cloud provider connecting to AWS services

The correct answer is: A customer providing a VIF to another customer on their connection

Hosted Virtual Interfaces (VIFs) in AWS Direct Connect are designed specifically for scenarios where one customer can provide network connectivity to another customer using the same Direct Connect connection. This is an important feature because it allows for shared connectivity in multitenant environments. In this case, the customer who owns the Direct Connect connection can enable other customers to access their AWS resources through a Hosted VIF. This is particularly useful for service providers who offer direct access to AWS for their clients without needing to provision separate physical connections for each one. The scenarios you might consider, such as connections for single accounts, direct connections to on-premises applications, or connections from non-AWS cloud providers, do not leverage the shared access capability that Hosted VIFs offer. Instead, they may involve other configurations like private VIFs or public VIFs, which serve different purposes in terms of connectivity and routing. Thus, the association of Hosted VIFs specifically with customer-to-customer connectivity makes the chosen answer accurate.