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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 217 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 217
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

A financial company offers investment forecasts and recommendations to authorized users through the internet. All the services are hosted in the AWS Cloud. A new compliance requirement states that all the internet service traffic from any host must be logged and retained for 2 years. In its development AWS accounts, the company has designed, tested, and verified a solution that uses Amazon VPC Traffic Mirroring with a Network Load Balancer (NLB) as the traffic mirror target. While the solution runs in one AWS account, the solution mirrors the traffic to another AWS account.

A network engineer notices that not all traffic is mirrored when the solution is deployed into the production environment. The network engineer also notices that this behavior is random.

Which statements are possible explanations for why not all the traffic is mirrored? (Choose two.)

  • A. The security groups are misconfigured on the production AWS account that hosts the company’s services.
  • B. The Amazon EC2 instance that is being monitored cannot handle the extra traffic that Traffic Mirroring has introduced.
  • C. The IAM policy that allows the creation of traffic mirror sessions is misconfigured
  • D. The mirrored traffic has a lower priority than the production traffic and is being dropped when network congestion occurs.
  • E. The NLB is experiencing warm-up delay because of sudden and significant increases in traffic.
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Suggested Answer: DE 🗳️
by qomtodie at Aug. 27, 2024, 12:29 p.m.
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luisgu
Highly Voted 8 months ago
Selected Answer: DE
https://docs.aws.amazon.com/vpc/latest/mirroring/traffic-mirroring-network-limitations.html#traffic-mirroring-bandwidth
upvoted 8 times
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AWSLoverLoverLoverLoverLover
Most Recent 1 month ago
Selected Answer: BD
Answer B & D
upvoted 1 times
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dspd
2 months, 3 weeks ago
Selected Answer: BD
B and D E can not because The NLB is experiencing warm-up delay because of sudden and significant increases in traffic. While NLBs can experience some warm-up delay when there are sudden traffic increases, this is unlikely to be the primary cause of the random mirroring issues. NLBs are designed to handle high volumes of traffic and scale quickly. The warm-up period is typically short and wouldn't explain ongoing random mirroring failures.
upvoted 2 times
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woorkim
4 months, 2 weeks ago
B, D is correct! A. Traffic Mirroring operates at the ENI level and does not depend on security group configurations. This is unlikely to cause random packet drops. C. Since the issue is random and traffic mirroring is partially working, this is not the cause. E. While NLB warm-up delays can occur, they typically affect the ability to handle new connections, not random packet drops.
upvoted 3 times
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Christina666
4 months, 4 weeks ago
Selected Answer: BD
network congestion can drop the mirror traffic
upvoted 2 times
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seongheon
7 months, 2 weeks ago
Selected Answer: BD
Answer is B, D E is wrong. There is no case NLB is experiencing warm-up delay
upvoted 4 times
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kupo777
8 months, 1 week ago
Answer is D, E The following choices can be ruled out because events in which all traffic is not mirrored occur at random. A, C Also, because traffic mirroring is a low priority, The replicated traffic generated by each instance is counted against the total bandwidth available to this instance, and if traffic is delayed, the mirrored traffic is dropped first
upvoted 3 times
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cas_tori
8 months, 1 week ago
Selected Answer: DE
this is DE
upvoted 2 times
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aragon_saa
8 months, 1 week ago
Selected Answer: AE
Answer is A, E
upvoted 1 times
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