JN0-411: Cloud, SpecialistDemo

By Juniper · Question Mode

QuestionQ7

Network Virtualization

You need to implement a Contrail service that automatically increases that service’s network resources during high traffic loads and reduces its network resources during low traffic loads.

Which configuration steps accomplish this task?

  • A Configure Heat to monitor the CPU threshold of services VMs, and configure a Heat auto-scaling policy to adjust the VM resources allocated to the service.
  • B Configure Ceilometer to monitor the CPU threshold of services VMs, and configure a Ceilometer auto-scaling policy to adjust the VM resources allocated to the service.
  • C Configure Heat to monitor the CPU threshold of services VMs, and configure a Ceilometer auto-scaling policy to adjust the VM resources based on alarms generated by Heat.
  • D Configure Ceilometer to monitor the CPU threshold of services VMs, and configure a Heat auto-scaling policy to adjust VM resources based on the alarms
Explanation

Ceilometer monitors VM CPU-utilization thresholds and raises alarms. Heat scaling policies manage the capacity of Heat AutoScalingGroups and expose an alarm URL that an alarm action can invoke, enabling scale-out and scale-in in response to those Ceilometer alarms.

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