[Solved] Given the following AWS setup, what will happen if the Internet Gateway is not attached to the VPC?VPC: vpc-1234Internet Gateway: igw-5678 (created but not attached)EC2 Instance:... | AWS

AWS - VPC Fundamentals

Given the following AWS setup, what will happen if the Internet Gateway is not attached to the VPC?

VPC: vpc-1234
Internet Gateway: igw-5678 (created but not attached)
EC2 Instance: in public subnet with route to igw-5678

AThe EC2 instance will not have internet access

BThe EC2 instance will be terminated automatically

CThe EC2 instance will have internet access

DThe EC2 instance will have internet access only for outbound traffic

Step-by-Step Solution

Solution:

Step 1: Understand Internet Gateway attachment requirement
An Internet Gateway must be attached to the VPC to enable internet traffic flow. Without attachment, the gateway is inactive for that VPC.
Step 2: Analyze the effect on EC2 instance
Even if the route table points to the Internet Gateway, since it is not attached, the EC2 instance cannot send or receive internet traffic.
Final Answer:
The EC2 instance will not have internet access -> Option A
Quick Check:
Internet Gateway unattached = no internet access [OK]

Quick Trick: Internet Gateway must be attached to VPC for internet access [OK]

Common Mistakes:

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