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Free AWS-SysOps Exam Braindumps (page: 5)

Page 4 of 121
PDF with 477 Questions

A company is running distributed computing software to manage a fleet of 20 Amazon EC2 instances for calculations. The fleet includes 2 control nodes and 18 task nodes to run the calculations. Control nodes can automatically start the task nodes.
Currently, all the nodes run on demand. The control nodes must be available 24 hours a day, 7 days a week. The task nodes run for 4 hours each day. A SysOps administrator needs to optimize the cost of this solution.
Which combination of actions will meet these requirements? (Choose two.)

  1. Purchase EC2 Instance Savings Plans for the control nodes.
  2. Use Dedicated Hosts for the control nodes.
  3. Use Reserved Instances for the task nodes.
  4. Use Spot Instances for the control nodes. Use On-Demand Instances if there is no Spot availability.
  5. Use Spot Instances for the task nodes. Use On-Demand Instances if there is no Spot availability.

Answer(s): A,E



A company is supposed to receive a data file every hour in an Amazon S3 bucket. An S3 event notification invokes an AWS Lambda function each time a file arrives. The function processes the data for use by an application.
The application team notices that sometimes the file does not arrive. The application team wants to receive a notification whenever the file does not arrive.
What is the MOST operationally efficient solution that meets these requirements?

  1. Add an S3 Lifecycle rule on the S3 bucket with a scope that is limited to objects that were created in the last hour. Configure another S3 event notification to be invoked by the lifecycle transition when the number of objects transitioned is zero. Publish a message to an Amazon Simple Notification Service (Amazon SNS) topic to notify the application team.
  2. Configure another S3 event notification to invoke a Lambda function that posts a message to an Amazon Simple Queue Service (Amazon SQS) queue. Create an Amazon CloudWatch alarm to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic to notify the application team when the ApproximateAgeOfOldestMessage metric of the queue is greater than 1 hour.
  3. Create an Amazon CloudWatch alarm to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic to alert the application team when the Invocations metric of the Lambda function is zero for an hour. Configure the alarm to treat missing data as breaching.
  4. Create a new Lambda function to get the timestamp of the newest file in the S3 bucket. If the timestamp is more than 1 hour ago, publish a message to an Amazon Simple Notification Service (Amazon SNS) topic to notify the application team. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to invoke the new function hourly.

Answer(s): C



A company recently acquired another corporation and all of that corporation's AWS accounts. A financial analyst needs the cost data from these accounts. A
SysOps administrator uses Cost Explorer to generate cost and usage reports. The SysOps administrator notices that "No Tagkey" represents 20% of the monthly cost.
What should the SysOps administrator do to tag the "No Tagkey" resources?

  1. Add the accounts to AWS Organizations. Use a service control policy (SCP) to tag all the untagged resources.
  2. Use an AWS Config rule to find the untagged resources. Set the remediation action to terminate the resources.
  3. Use Cost Explorer to find and tag all the untagged resources.
  4. Use Tag Editor to find and tag all the untagged resources.

Answer(s): D



While setting up an AWS managed VPN connection, a SysOps administrator creates a customer gateway resource in AWS. The customer gateway device resides in a data center with a NAT gateway in front of it.
What address should be used to create the customer gateway resource?

  1. The private IP address of the customer gateway device
  2. The MAC address of the NAT device in front of the customer gateway device
  3. The public IP address of the customer gateway device
  4. The public IP address of the NAT device in front of the customer gateway device

Answer(s): D

Explanation:


Reference:

https://docs.aws.amazon.com/vpn/latest/s2svpn/cgw-options.html






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