ANS-C01 Network Implementation Practice Question
A network engineer is designing a Direct Connect solution with a public VIF and a private VIF. The private VIF will connect to a VPC via a Direct Connect Gateway. Which TWO of the following statements are correct regarding this setup? (Choose 2.)
⚠ Common exam trap
The ANS-C01 exam often tests the misconception that a public VIF can be used to connect to a VPC via a Direct Connect Gateway, but in reality, Direct Connect Gateway only supports private VIFs, and public VIFs are strictly for accessing AWS public services over public IP addresses.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The Direct Connect Gateway allows the private VIF to connect to multiple VPCs in different AWS Regions
A Direct Connect Gateway enables a private VIF to connect to multiple VPCs, even across different AWS Regions, by acting as a transit hub. The gateway uses a single private VIF to route traffic to up to 10 VPCs (by default) in any region, provided the VPCs are associated via virtual private gateways and the appropriate route tables are configured.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The private VIF can be used without a virtual interface termination device on the customer side
Why it's wrong here
A router is required to terminate the VIF.
- ✗
The public VIF can be used to connect to a VPC via a Direct Connect Gateway
Why it's wrong here
Public VIF does not connect to VPCs; that's private VIF.
- ✗
The private VIF can be used to access Amazon S3 over a private IP address
Why it's wrong here
Private VIF is for VPC access, not public services.
- ✓
The Direct Connect Gateway allows the private VIF to connect to multiple VPCs in different AWS Regions
Why this is correct
Direct Connect Gateway enables multi-region connectivity.
- ✓
The public VIF can be used to access AWS public services such as Amazon S3 over Direct Connect
Why this is correct
Public VIF provides access to public endpoints.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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