5.09 Apply the Key Concepts Required to Create a Workflow for Dynamic Provisioning of an F5 Instance 402 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which network resource is typically required for an F5 instance to be accessible for management and traffic?

   • AA network that is isolated from all other resources
   • BA virtual network with a public IP address for management access
   • CA private network with no external connectivity
   • DA network with only outbound internet access
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A workflow provisions BIG-IP instances in AWS. After the instance is created and configured, the workflow must validate that the BIG-IP is reachable on its management interface. The BIG-IP has a public IP and a security group that allows HTTPS (443) from the management network. Which validation command should be used?

   • AUse a PowerShell script to test the TCP connection to the public IP on port 443.
   • BUse the AWS CLI to run 'aws ec2 describe-instance-status' and check for 'ok' status.
   • CUse a ping command to the public IP to check if the instance is up.
   • DUse the AWS CLI to run 'aws ec2 describe-security-groups' to verify the rule exists.
   Reveal Solution Discussion Select an answer first
4. 28foundation · easy

   Which action is an example of a rollback mechanism in a provisioning workflow?

   • ALogging the error and continuing to the next step
   • BSending an alert to the administrator and stopping the workflow
   • CRetrying the failed step without any changes
   • DDeleting the partially created F5 instance and its resources
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5. 29expert · hard

   A workflow provisions BIG-IP instances in AWS using CloudFormation and a custom resource Lambda function. The Lambda function is responsible for licensing the BIG-IP by calling the F5 licensing API. If the licensing API call fails, the CloudFormation stack creation fails. The team wants to ensure that the stack creation can be retried without manual intervention. What is the most appropriate way to handle this?

   • ADo nothing; CloudFormation will automatically retry the entire stack creation.
   • BConfigure the Lambda function to retry the licensing API call with exponential backoff before returning a failure.
   • CModify the Lambda function to return a success response even if licensing fails.
   • DUse a separate CloudFormation stack for the licensing step so the main stack does not fail.
   Reveal Solution Discussion Select an answer first
6. 30foundation · easy

   When selecting cloud resources for an F5 instance, which compute resource is most appropriate?

   • AA container instance that is ephemeral and can be recreated on demand
   • BA virtual machine with sufficient CPU and memory to handle expected traffic
   • CA serverless function that runs only when traffic arrives
   • DA bare-metal server that is dedicated to the F5 instance
   Reveal Solution Discussion Select an answer first