AWS - Security Groups and Network ACLsGiven a NACL with inbound rule allowing TCP port 443 and no outbound rules, what happens to HTTPS response traffic?AResponse traffic is blocked because no outbound rule allows it.BResponse traffic is allowed automatically by NACL.CResponse traffic is allowed if security groups allow it.DResponse traffic is blocked unless inbound rule allows it.Check Answer
Step-by-Step SolutionSolution:Step 1: Analyze inbound ruleInbound TCP port 443 is allowed, so incoming HTTPS requests pass through.Step 2: Check outbound rules for responseNo outbound rules exist, so response traffic is blocked by default due to statelessness.Final Answer:Response traffic is blocked because no outbound rule allows it. -> Option AQuick Check:No outbound rule = response blocked [OK]Quick Trick: No outbound rule means no return traffic allowed [OK]Common Mistakes:MISTAKESAssuming return traffic auto-allowedConfusing security group rules with NACL rulesIgnoring stateless nature of NACLs
Master "Security Groups and Network ACLs" in AWS9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
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