1 Modern Network Management Foundations Free Online FlashCards

How do configuration and operational state differ?

Configuration describes intended settings; operational state reports what the network is actually doing at runtime.

What is a network API?

An API is a defined interface through which software reads information or requests operations.

What does a YANG data model define?

YANG defines the structure, meaning, types, and constraints of management data, including configuration and state data.

How do imperative and declarative automation differ?

Imperative automation specifies steps to run; declarative automation specifies the desired state the network should match.

What is infrastructure as code?

Infrastructure as code stores desired infrastructure definitions in files that can be versioned, reviewed, tested, and applied through a controlled workflow.

What roles do the three network-management architecture layers play?

Applications and services express needs, management or control functions translate them into actions, and network devices forward traffic and report operational information.

What do northbound and southbound interfaces connect?

Northbound interfaces connect applications or orchestration systems to a controller or management platform; southbound interfaces connect that platform to devices or lower-level systems.

What is NETCONF used for?

NETCONF provides RPC-based operations to retrieve and modify device configuration.

What is a network controller's role?

A controller coordinates policy or intent, gathers topology and device information, and translates higher-level requests into lower-level configuration.

What does a YANG model guarantee about vendor implementations?

A model is a contract for data structure and constraints, not a guarantee that every vendor implements every modeled feature identically.

What should be checked before deploying an automated network change?

Validate syntax, model constraints, policy, dependencies, and authorization; review proposed changes and estimate their impact before deployment.

What happens in an IaC plan-and-apply workflow?

A plan-and-apply workflow compares declared desired resources with managed infrastructure, presents proposed changes, and applies an approved plan.