AWS - Security Groups and Network ACLs
Which protocol must be allowed in a security group to enable SSH access?
Which protocol must be allowed in a security group to enable SSH access?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify SSH protocol
SSH uses TCP protocol for communication.Step 2: Match protocol to security group rule
Allowing TCP on port 22 enables SSH access.Final Answer:
TCP -> Option BQuick Check:
SSH uses TCP = C [OK]
Quick Trick: SSH always uses TCP port 22 [OK]
Common Mistakes:
- Choosing UDP or ICMP for SSH
- Confusing HTTP with SSH protocol
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