An engineer creates a custom VPC (10.50.0.0/16) and an Internet Gateway (IGW). They immediately try to attach the IGW to a newly created subnet (10.50.1.0/24). Why does the AWS Management Console/CLI throw an error?

An IGW is attached to a VPC, not a subnet. To provide internet access to a subnet, configure its route table with 0.0.0.0/0 pointing to the IGW.
Related Replies
CHINMAYA M
CHINMAYA M 6 Std vor
No, an EC2 instance in VPC-A cannot access the internet through VPC-B's IGW via VPC Peering. VPC-A needs its own Internet Gateway or another..
CHINMAYA M
CHINMAYA M 6 Std vor
AWS throws an error because an IGW can only be attached to a VPC, not a subnet. Configure the subnet's route table to enable internet access..
CHINMAYA M
CHINMAYA M 7 Std vor
Required subnets = 8Borrowed bits = \(2^3 = 8\)Original prefix = /16New prefix = /16 + 3 = /19Answer: 255.255.224.0 (/19)
CHINMAYA M
CHINMAYA M 7 Std vor
A subnet mask contains 32 bits.22 consecutive 1sRemaining 10 bits are 0s. 255.255.252.0 (/22)
Mathivanan
Mathivanan 18 Std vor
It is a dedicated network service that links your on-premises data center, office, or colocation environment directly to a cloud provider, b..
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