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AWS Certified Solutions Architect study material · question 141 of 500

What does an inbound security group rule specify?

  1. A destination, a port range and a protocol
  2. A rule number, an action and a CIDR block
  3. A subnet association and an action
  4. A source, a port range and a protocol
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Answer: D. A source, a port range and a protocol

Inbound rules name a source; outbound rules name a destination instead. Numbered allow or deny rules belong to network ACLs.

Source: Control traffic to your AWS resources using security groups (Amazon Web Services) — Security group rules

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