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Exam AWS Certified Solutions Architect - Professional topic 1 question 721 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional
Question #: 721
Topic #: 1
[All AWS Certified Solutions Architect - Professional Questions]

A company is developing a web application that runs on Amazon EC2 instances in an Auto Scaling group behind a public-facing Application Load Balancer (ALB).
Only users from a specific country are allowed to access the application. The company needs the ability to log the access requests that have been blocked. The solution should require the least possible maintenance.
Which solution meets these requirements?

  • A. Create an IPSet containing a list of IP ranges that belong to the specified country. Create an AWS WAF web ACL. Configure a rule to block any requests that do not originate from an IP range in the IPSet. Associate the rule with the web ACL. Associate the web ACL with the ALB.
  • B. Create an AWS WAF web ACL. Configure a rule to block any requests that do not originate from the specified country. Associate the rule with the web ACL. Associate the web ACL with the ALB.
  • C. Configure AWS Shield to block any requests that do not originate from the specified country. Associate AWS Shield with the ALB.
  • D. Create a security group rule that allows ports 80 and 443 from IP ranges that belong to the specified country. Associate the security group with the ALB.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by Jaypdv at April 30, 2021, 11:56 a.m.
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oxfordsolutions
Highly Voted 3 years, 2 months ago
Correct Answer: B
upvoted 13 times
gsw
3 years, 2 months ago
how is it B?
upvoted 1 times
jduo
3 years, 2 months ago
https://docs.aws.amazon.com/waf/latest/developerguide/waf-rule-statement-type-geo-match.html
upvoted 3 times
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DashL
3 years, 1 month ago
If you want to allow or block web requests based on the country that the requests originate from, create one or more geo match conditions. A geo match condition lists countries that your requests originate from. Later in the process, when you create a web ACL, you specify whether to allow or block requests from those countries.
upvoted 4 times
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jj22222
Most Recent 2 years, 10 months ago
B looks right
upvoted 2 times
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Devgela
2 years, 10 months ago
Selected Answer: B
B is the correct answer for me
upvoted 2 times
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tkanmani76
2 years, 11 months ago
B - https://docs.aws.amazon.com/waf/latest/developerguide/waf-rule-statement-type-geo-match.html
upvoted 1 times
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cldy
2 years, 12 months ago
B. Create an AWS WAF web ACL. Configure a rule to block any requests that do not originate from the specified country. Associate the rule with the web ACL. Associate the web ACL with the ALB.
upvoted 2 times
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AzureDP900
3 years ago
B is right. Option A provided to confuse you!
upvoted 1 times
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acloudguru
3 years ago
Selected Answer: B
WAF is designed to serve this case, for A making a IP list is impossible. AWS has such list, and can ganrutee 99.8% accurate, how can a company do it?
upvoted 1 times
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AzureDP900
3 years ago
B completely make sense. A is wrong answer.
upvoted 1 times
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andylogan
3 years, 1 month ago
It's B
upvoted 1 times
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tgv
3 years, 1 month ago
BBB ---
upvoted 1 times
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blackgamer
3 years, 1 month ago
It is B
upvoted 1 times
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Kopa
3 years, 1 month ago
Im for B
upvoted 1 times
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WhyIronMan
3 years, 1 month ago
I'll go with B
upvoted 3 times
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vimgoru24
3 years, 1 month ago
It’s B. You should not manage IP lists in this case
upvoted 1 times
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hk436
3 years, 1 month ago
B is my answer!!
upvoted 1 times
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Waiweng
3 years, 1 month ago
it's B
upvoted 3 times
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tvs
3 years, 2 months ago
B https://aws.amazon.com/blogs/aws/aws-web-application-firewall-waf-for-application-load-balancers/
upvoted 1 times
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