[Solved] Given a security group with these inbound rules:- Allow TCP port 22 from 0.0.0.0/0- Allow TCP port 80 from 192.168.1.0/24Which IP address can access port 80? | AWS

AWS - Security Groups and Network ACLs

Given a security group with these inbound rules:

- Allow TCP port 22 from 0.0.0.0/0
- Allow TCP port 80 from 192.168.1.0/24

Which IP address can access port 80?

A10.0.0.5

B0.0.0.0

C192.168.1.15

D172.16.0.1

Step-by-Step Solution

Solution:

Step 1: Understand the CIDR block for port 80
The rule allows TCP port 80 only from IPs in 192.168.1.0/24 range, which means 192.168.1.0 to 192.168.1.255.
Step 2: Check which IP fits the range
192.168.1.15 is inside the allowed range, others are not.
Final Answer:
192.168.1.15 -> Option C
Quick Check:
192.168.1.0/24 includes 192.168.1.15 [OK]

Quick Trick: Check if IP fits CIDR range for allowed port [OK]

Common Mistakes:

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