02Explain CIDR notation. How many hosts are in a /24, and why does subnet sizing matter in a VPC?▼easyNewAmazon & AWSGoogleAccentureunlockedThe arithmetic takes thirty seconds to learn and gets asked constantly. What it is really testing is whether you have ever had to size a VPC that could not be resized later.Open full answer →
12An instance in a private subnet cannot reach the internet. Debug it in order.▼easy★ EssentialNewAmazonTCSInfosys2 repliesunlockedTrace the route and return path before changing rules. First establish whether the failing connection uses IPv4, IPv6 or a private service endpoint.Open full answer →
