6. Describe the Capabilities of Automation Tools Such as Ansible, Terraform, and Cisco NSO 200-901 Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A large enterprise has a multi-vendor network with devices from Cisco, Juniper, and Arista. They need to deploy a new WAN service that requires coordinated configuration changes across all devices. The team wants a single point of control and the ability to roll back changes if something goes wrong. Which tool is best suited?

   • ACisco NSO with service models and transaction rollback.
   • BTerraform with providers for each vendor.
   • CA custom Python script using NETCONF for each device.
   • DAnsible with a playbook that configures each device sequentially.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A network admin needs to ensure that a set of Cisco IOS devices have a consistent NTP configuration. The admin wants to check and correct any drift on a regular basis. Which Ansible feature is most relevant?

   • AIdempotent playbooks using the ios_config module.
   • BUsing a Terraform state file to track NTP configuration.
   • CUsing the ios_command module to only check the configuration.
   • DAd-hoc commands run manually each time.
   Reveal Solution Discussion Select an answer first
4. 18expert · hard

   A team uses Terraform to manage a VPC. A network engineer manually adds a route to the route table in the cloud console. The next time the team runs 'terraform plan', the plan shows that Terraform will remove that route. The team wants to keep the manual route but does not want Terraform to manage it. What should they do?

   • AUse 'terraform state rm' to remove the route from the state file
   • BUse 'terraform import' to import the route into the state
   • CAdd the route to the Terraform configuration and then run 'terraform apply'
   • DUse 'terraform taint' on the route resource
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   A network engineer wants to automate the configuration of multiple Cisco IOS devices without installing any software on the devices themselves. Which Ansible characteristic makes this possible?

   • AA web-based management console that pushes configurations to devices
   • BAgentless architecture that uses SSH or API calls to manage devices
   • CA compiled binary that runs directly on the network device's operating system
   • DA lightweight agent that must be installed on each managed device
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A network service provider wants to automate the provisioning of a new customer VPN. The service must be provisioned across multiple devices, and the provider wants to ensure that if any device fails during provisioning, the entire service is not partially deployed. Which tool and feature is best?

   • AA custom script that configures devices sequentially and stops on failure.
   • BAnsible with a playbook that checks each device after configuration.
   • CTerraform with a state file that tracks the provisioning.
   • DCisco NSO with transactional rollback.
   Reveal Solution Discussion Select an answer first