Free AWS-Certified-Advanced-Networking-Specialty Exam Braindumps (page: 38)

Page 38 of 102

You need to quickly view inbound traffic to an instance to determine why it isn't reaching the instance properly. What is the best tool for this?

  1. Wireshark
  2. CloudWatch
  3. CloudTrail
  4. Flow Logs

Answer(s): D

Explanation:

CloudWatch only shows the amount of data in. Wireshark cannot see anything inside AWS infrastructure. You can only use it to view instance traffic.



Your company has just completed a transition to IPv6 and has deployed a website on a server. You were able to download software on the instance without an issue. This website is deployed using IPv6, but the public is not able to access it. What should you do to fix this problem?

  1. Add an internet gateway for the instance.
  2. Add an egress-only internet gateway.
  3. Add an inbound rule to your security group that allows inbound traffic on port 80 for ::/0.
  4. Add an inbound rule to your security group that allows inbound traffic on port 80 for 0.0.0.0/0.

Answer(s): C

Explanation:

Your instance can reach the internet if it was able to download sofftware, so an IGW is not needed. 0.0.0.0/0 is for IPv4.



Your company has two DX locations. You need to configure one link as passive. What should you configure in your router to set that link as the passive link.

  1. Set a higher MED.
  2. Configure AS_PATH Prepending on the link.
  3. Advertise a network with a higher CIDR.
  4. Call your service provider and have the ASN changed for that link.

Answer(s): B

Explanation:

You should configure AS_PATH prepending on the link. A higher CIDR is the same as a more specific prefix, which will make the link more preferred. A higher MED will make the path less preferred, but this is not the preferred method to accomplish this. Changing your ASN will not help. Configuring AS_PATH Prepending is the preferred method of AWS to configure an Active-Passive configuration with Direct Connect.



You have just configured an Elastic Load Balancer. Assuming all settings are configured properly, about how long will it take an instance to become healthy with a 6 second HealthCheck Interval, an unhealthy threshold of 5 and a healthy threshold of 10?

  1. 120 seconds
  2. 30 seconds
  3. 6 seconds
  4. 60 seconds

Answer(s): D

Explanation:

60 seconds. 10 healthcheck successes with 6 second intervals.



Page 38 of 102



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