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Which statement best describes a public subnet in AWS?

easy📝 Conceptual Q11 of 15
AWS - VPC Fundamentals
Which statement best describes a public subnet in AWS?
AIt has direct internet access and assigns public IPs automatically.
BIt does not assign public IPs and blocks all internet traffic.
CIt is used only for internal communication within the VPC.
DIt requires a VPN connection to access the internet.
Step-by-Step Solution
Solution:

  1. Step 1: Understand public subnet characteristics

    A public subnet allows resources to communicate directly with the internet by assigning public IP addresses.

  2. Step 2: Compare with other subnet types

    Private subnets do not assign public IPs and restrict internet access, unlike public subnets.

  3. Final Answer:

    It has direct internet access and assigns public IPs automatically. -> Option A

  4. Quick Check:

    Public subnet = direct internet access [OK]
Quick Trick: Public subnet = direct internet access + public IPs [OK]
Common Mistakes:
  • Confusing private subnet with public subnet
  • Thinking all subnets have internet access
  • Assuming VPN is needed for public subnet

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