CCIE Automation and Programmability Flashcards

Which data encoding format uses indentation-based hierarchy and is natively used by Ansible playbooks?

Answer: YAML

YAML (YAML Ain't Markup Language) uses indentation to define structure and is the native format for Ansible playbooks and Kubernetes manifests.

In YANG data models, what is the 'leaf' node used for?

Answer: Representing a single data value with a specific type

A YANG 'leaf' node represents a single scalar value (like an IP address or interface name) with a specific data type.

Which NETCONF operation retrieves the current running configuration from a network device?

Answer: with source=running

The NETCONF operation with source='running' retrieves the currently active configuration datastore from the device.

What transport protocol and port does NETCONF use by default?

Answer: SSH/830

NETCONF uses SSH as its transport with the IANA-assigned port 830, providing secure encrypted communication for network configuration.

In Python, which library is commonly used to establish NETCONF sessions and interact with Cisco IOS-XE devices?

Answer: ncclient

The 'ncclient' Python library provides a high-level NETCONF client interface for establishing sessions and sending RPC operations to NETCONF-enabled devices.

Which Cisco platform provides a model-driven programmability interface supporting NETCONF, RESTCONF, and gRPC?

Answer: Cisco IOS-XE with YANG data models

Cisco IOS-XE supports model-driven programmability through NETCONF (port 830), RESTCONF (HTTPS), and gRPC-based gNMI interfaces using YANG data models.