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AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question

Your load-balanced web application is fronted by an AWS WAF web ACL. Some legitimate requests are being blocked. You retrieve the following log record:

{"action":"BLOCK","ruleGroupId":"AWS#AWSManagedRulesCommonRuleSet","terminatingRuleId":"SizeRestrictions_BODY","terminatingRuleType":"RULE", ...}

Based on this information, what is the most accurate explanation for why the request was denied?

  • No rules matched and the web ACL's default action is set to BLOCK, so the request was rejected.

  • A custom rate-based rule named SizeRestrictions_BODY reached its threshold, causing the block.

  • AWS Shield Advanced identified the request as a DDoS threat and instructed WAF to block it.

  • The request body violated the SizeRestrictions_BODY rule in the AWSManagedRulesCommonRuleSet managed rule group, so AWS WAF blocked the request.

AWS Certified CloudOps Engineer Associate SOA-C03
Networking and Content Delivery
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