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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 90 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 90
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A company has a global network and is using transit gateways to connect AWS Regions together. The company finds that two Amazon EC2 instances in different Regions are unable to communicate with each other. A network engineer needs to troubleshoot this connectivity issue.

What should the network engineer do to meet this requirement?

  • A. Use AWS Network Manager Route Analyzer to analyze routes in the transit gateway route tables and in the VPC route tables. Use VPC flow logs to analyze the IP traffic that security group rules and network ACL rules accept or reject in the VPC.
  • B. Use AWS Network Manager Route Analyzer to analyze routes in the transit gateway route tables. Verify that the VPC route tables are correct. Use AWS Firewall Manager to analyze the IP traffic that security group rules and network ACL rules accept or reject in the VPC.
  • C. Use AWS Network Manager Route Analyzer to analyze routes in the transit gateway route tables. Verify that the VPC route tables are correct. Use VPC flow logs to analyze the IP traffic that security group rules and network ACL rules accept or reject in the VPC.
  • D. Use VPC Reachability Analyzer to analyze routes in the transit gateway route tables. Verify that the VPC route tables are correct. Use VPC flow logs to analyze the IP traffic that security group rules and network ACL rules accept or reject in the VPC.
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Suggested Answer: C 🗳️
by hankun at April 21, 2023, 2:36 p.m.
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ITgeek
Highly Voted 2 years ago
Selected Answer: C
Network analyzer with VPV flow logs
upvoted 7 times
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woorkim
Most Recent 5 months, 2 weeks ago
only c is correct!
upvoted 1 times
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Spaurito
5 months, 4 weeks ago
C - This the tool for the job to check TGW Route Tables. https://docs.aws.amazon.com/network-manager/latest/tgwnm/route-analyzer.html
upvoted 1 times
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Raphaello
1 year ago
Selected Answer: C
When it comes to analyze routes through TGW, then use AWS Network Manager Route Analyzer. AWS Network Manager Route Analyzer analyzes routes in TGW route table ONLY. It does not analyze VPC route tables, SG's, nor ACL rules.
upvoted 1 times
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Marfee400704
1 year, 2 months ago
I think that it's correct answer is C according to SPOTO products.
upvoted 1 times
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task_7
1 year, 4 months ago
Selected Answer: D
. If the destination is not reachable, Reachability Analyzer identifies the blocking component. Network Access Analyzer is a feature that enables you to identify unintended network access to your resources on AWS. https://aws.amazon.com/about-aws/whats-new/2023/08/amazon-vpc-reachability-analyzer-vpc-network-access-analyzer-additional-region/#:~:text=If%20the%20destination%20is%20not,to%20your%20resources%20on%20AWS.
upvoted 3 times
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wmatos
1 year, 6 months ago
Selected Answer: C
CCCCCCCCCCCCCC
upvoted 2 times
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chen0305_099
1 year, 7 months ago
Selected Answer: C
ＣＣＣＣＣＣＣ
upvoted 2 times
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study_aws1
2 years ago
C) is correct. https://docs.aws.amazon.com/network-manager/latest/tgwnm/route-analyzer.html
upvoted 2 times
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hankun
2 years ago
AWS Network Manager Route Analyzer to analyze routes in the transit gateway. Route tables and in the VPC route tables will use VPC flow logs or Reachability Analyzer to analyze routes -> C
upvoted 2 times
coolt2
1 year, 5 months ago
i see this on the link share "Note Route Analyzer does not work with intra-Region peering."
upvoted 1 times
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