ANS-C01 Network Implementation Practice Question
A company is using AWS Direct Connect with a private VIF to connect its on-premises network to a VPC. The VPC has a CIDR 10.0.0.0/16. The on-premises network uses 192.168.0.0/16. The company wants to enable communication between on-premises and the VPC, and also allow the VPC to access the internet via an internet gateway. Which TWO of the following configurations are necessary?
⚠ Common exam trap
The ANS-C01 exam often tests the misconception that a default route (0.0.0.0/0) should point to the virtual private gateway when using Direct Connect, but the correct configuration for internet access is to point it to the internet gateway, while the on-premises CIDR route points to the VGW.
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
✓
A route in the VPC route table for 0.0.0.0/0 pointing to the internet gateway.
An internet gateway (IGW) provides internet access for a VPC, and the VPC's main route table must include a default route (0.0.0.0/0) pointing to the IGW for outbound internet traffic. This allows instances in the VPC to reach the internet, which is a stated requirement. Without this route, traffic destined for the internet would have no path.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A route in the on-premises router for the VPC CIDR (10.0.0.0/16) pointing to the AWS Direct Connect router.
Why it's wrong here
This is needed but the question asks for configurations in AWS side, not on-premises.
- ✓
A route in the VPC route table for 0.0.0.0/0 pointing to the internet gateway.
Why this is correct
Required for VPC internet access.
- ✗
A route in the VPC route table for 0.0.0.0/0 pointing to the virtual private gateway.
Why it's wrong here
That would route internet traffic through Direct Connect, not desired.
- ✗
A route in the VPC route table for the on-premises CIDR (192.168.0.0/16) pointing to the internet gateway.
Why it's wrong here
Wrong, should point to VGW.
- ✓
A route in the VPC route table for the on-premises CIDR (192.168.0.0/16) pointing to the virtual private gateway.
Why this is correct
Required to route traffic from VPC to on-premises.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ANS-C01 exam.