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Free AWS-Certified-Advanced-Networking-Specialty Exam Braindumps (page: 34)

Page 34 of 102
PDF with 407 Questions

A user is running a batch process on EBS backed EC2 instances. The batch process launches few EC2 instances to process hadoop Map reduce jobs which can run between 50-600 minutes or sometimes for even more time. The user wants a configuration that can terminate the instance only when the process is completed. How can the user configure this with CloudWatch?

  1. Configure a job which terminates all instances after 600 minutes
  2. It is not possible to terminate instances automatically
  3. Set up the CloudWatch with Auto Scaling to terminate all the instances
  4. Configure the CloudWatch action to terminate the instance when the CPU utilization falls below 5%

Answer(s): D

Explanation:

Amazon CloudWatch alarm watches a single metric over a time period that the user specifies and performs one or more actions based on the value of the metric relative to a given threshold over a number of time periods. The user can setup an action which terminates the instances when their CPU utilization is below a certain threshold for a certain period of time. The EC2 action can either terminate or stop the instance as part of the EC2 action.


Reference:

http://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/UsingAlarmActions.html



You need to create a subnet in a VPC that supports 14 hosts. You need to be as accurate as possible since you run a very large company. What CIDR should you use?

  1. /28
  2. /24
  3. /25
  4. /27

Answer(s): D

Explanation:

/27 supports 27 hosts since AWS reserves 5 addresses. /25 supports 123 hosts, /28 supports 11, /24 supports 251.



You have a DX connection and a VPN connection as backup for your 10.0.0.0/16 network. You just received a letter indicating that the colocation provider hosting the DX connection will be undergoing maintenance soon. It is critical that you do not experience any downtime or latency during this period.
What is the best course of action?

  1. Configure the VPN as a static VPN instead of dynamic.
  2. Configure AS_PATH Prepending on the DX connection to make it the less preferred path.
  3. Advertise 10.0.0.0/9 and 10.128.0.0/9 over your VPN connection.
  4. None of the above.

Answer(s): D

Explanation:

A more specific route is the only way to force AWS to prefer a VPN connection over a DX connection. A /9 is not more specific than a /16.



You have two enhanced networking capable instances in a placement group. One with an Intel network interface and one with an ENA.What network speed will be achieved between the two?

  1. 10Gbps
  2. 20Gbps
  3. 5Gbps
  4. You cannot have different network interfaces in a placement group.

Answer(s): A

Explanation:

10Gbps. The Intel interface has a max speed of 10 and the ENA is 20. The speed will be the lesser of the two.



Page 34 of 102



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Hello commented on September 04, 2024
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Anonymous
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INDIA
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