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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 64 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 64
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company hosts a web application on Amazon EC2 instances behind an Application Load Balancer (ALB). The ALB is the origin in an Amazon CloudFront distribution. The company wants to implement a custom authentication system that will provide a token for its authenticated customers.
The web application must ensure that the GET/POST requests come from authenticated customers before it delivers the content. A network engineer must design a solution that gives the web application the ability to identify authorized customers.
What is the MOST operationally efficient solution that meets these requirements?

  • A. Use the ALB to inspect the authorized token inside the GET/POST request payload. Use an AWS Lambda function to insert a customized header to inform the web application of an authenticated customer request.
  • B. Integrate AWS WAF with the ALB to inspect the authorized token inside the GET/POST request payload. Configure the ALB listener to insert a customized header to inform the web application of an authenticated customer request.
  • C. Use an AWS Lambda@Edge function to inspect the authorized token inside the GET/POST request payload. Use the Lambda@Edge function also to insert a customized header to inform the web application of an authenticated customer request.
  • D. Set up an EC2 instance that has a third-party packet inspection tool to inspect the authorized token inside the GET/POST request payload. Configure the tool to insert a customized header to inform the web application of an authenticated customer request.
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Suggested Answer: C 🗳️
by zaazanuna at March 19, 2023, 5:14 p.m.
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titi_r
Highly Voted 2 years ago
Selected Answer: C
C) is correct. https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/edge-functions.html
upvoted 8 times
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woorkim
Most Recent 6 months ago
only c is correct! Use when you need some of the capabilities of Lambda@Edge that aren’t available with CloudFront Functions (e.g., longer execution time, network access, …)
upvoted 1 times
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Raphaello
1 year ago
Selected Answer: C
C it the correct answer. Lambda@Edge (after viewer request/before origin request) can inspect cookies/authentication token, and perform function logic and redirection (to login page when needed).
upvoted 2 times
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marfee
1 year, 2 months ago
I think that It's correct answer is C.
upvoted 1 times
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Arad
1 year, 6 months ago
Selected Answer: C
C is correct answer.
upvoted 1 times
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Mishranihal737
1 year, 8 months ago
Yes c is correct
upvoted 1 times
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bala2021
1 year, 11 months ago
CUse an AWS Lambda@Edge function to inspect the authorized token inside the GET/POST request payload. Use the Lambda@Edge function also to insert a customized header to inform the web application of an authenticated customer request. C : Ans
upvoted 2 times
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ITgeek
2 years ago
Selected Answer: C
C for the use of custom Lambdas
upvoted 2 times
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fojta
2 years, 1 month ago
AAAAAAAAAAAAA
upvoted 1 times
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helloworldabc
2 years, 1 month ago
CCCCCCCCCCC
upvoted 2 times
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zaazanuna
2 years, 1 month ago
C - correct.
upvoted 3 times
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