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You want to route traffic destined for a specific on-premises network (192.168.100.0/24) through a VPN connection (vgw-789xyz). How should you configure the route table?

hard📝 Application Q9 of 15
AWS - VPC Fundamentals
You want to route traffic destined for a specific on-premises network (192.168.100.0/24) through a VPN connection (vgw-789xyz). How should you configure the route table?
AAdd a route with DestinationCidrBlock 192.168.100.0/24 and Target NAT Gateway nat-789xyz
BAdd a route with DestinationCidrBlock 192.168.100.0/24 and Target Virtual Private Gateway vgw-789xyz
CAdd a route with DestinationCidrBlock 0.0.0.0/0 and Target Virtual Private Gateway vgw-789xyz
DAdd a route with DestinationCidrBlock 192.168.100.0/24 and Target Internet Gateway igw-789xyz
Step-by-Step Solution
Solution:
  1. Step 1: Identify correct target for on-premises network

    Traffic to on-premises network must go through Virtual Private Gateway (VPN).
  2. Step 2: Verify destination CIDR and target

    Destination is 192.168.100.0/24, target is vgw-789xyz.
  3. Final Answer:

    Add a route with DestinationCidrBlock 192.168.100.0/24 and Target Virtual Private Gateway vgw-789xyz -> Option B
  4. Quick Check:

    VPN routes use Virtual Private Gateway targets [OK]
Quick Trick: Use Virtual Private Gateway for on-premises VPN routes [OK]
Common Mistakes:
MISTAKES
  • Using Internet Gateway for VPN routes
  • Setting default route for VPN
  • Using NAT Gateway for on-premises traffic

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