CCNA AI and Network Operations Practice Test 3 — 15 Questions

Question 1

Which statement best describes why API endpoints and methods matter together in automation design?

Accepted Answer

The endpoint identifies the target resource and the method indicates the intended action.. Endpoints and methods matter together because the endpoint identifies what resource is being targeted and the method indicates the intended action. In practical terms, an automation workflow needs both pieces to interact with the system correctly. Knowing only the path without the intended method, or the method without the target, is not enough.

This is a good mid-level API reasoning question because it combines two basic concepts rather than testing them separately.

Answer

The endpoint is the encryption algorithm and the method is the subnet mask.

Answer

The method replaces the need for any endpoint definition.

Answer

Endpoints matter only for wireless controllers and never for routers.

Question 2

Which statement best explains why structured state data is more useful than free-form text for automated compliance checks?

Accepted Answer

Because software can compare defined fields and values much more reliably.. Structured state data is more useful because software can compare known fields and values consistently at scale. In practical terms, compliance checks often need to inspect whether interfaces, routing settings, security controls, or policies match expected values. Structured data makes that comparison reliable, while free-form text often forces brittle parsing.

This is an important automation and assurance concept because it connects machine-readable data directly to operational governance.

Answer

Because free-form text automatically creates YANG models.

Answer

Because structured data removes the need for secure transport.

Answer

Because APIs cannot return free-form text under any circumstances.

Question 3

Which statement best describes an API endpoint?

Accepted Answer

It is the specific target or path a client uses to interact with an API resource.. An API endpoint is the specific target or path a client uses to interact with a service. In practical terms, it is the addressable resource the client is trying to query, update, create, or delete. This is a basic API concept and belongs in the easier progression tier.

The important distinction is that the endpoint is the target, while the method describes the action.

Answer

It is the encryption algorithm used by SSH.

Answer

It is the same thing as a subnet broadcast address.

Answer

It is the default route toward the controller.

Question 4

Which statement best explains why data models such as YANG matter when building consistent automation workflows?

Accepted Answer

They provide structured definitions for representing network configuration and state consistently.. Data models matter because they define how network information should be represented in a structured, predictable way. In practical terms, that consistency helps different tools and systems understand the meaning of state and configuration without relying only on informal text interpretation. This improves portability, clarity, and automation reliability.

This is a model-driven automation concept rather than a transport concept.

Answer

They replace HTTPS as the secure transport protocol.

Answer

They are used only for electing designated routers in OSPF.

Answer

They convert all APIs into CLI commands automatically.

Question 5

Which statement best describes why an API token should be protected even if HTTPS is already used?

Accepted Answer

Because the token represents access rights and must be protected even when the transport is encrypted.. An API token should still be protected because it represents access rights, not just transport. In practical terms, HTTPS helps protect the communication channel, but the token still acts like an access credential. If someone unauthorized obtains the token, they may be able to act as the client even if the transport itself is secure.

This is an important security concept in automation. Secure transport and credential protection solve related but different problems.

Answer

Because HTTPS automatically publishes all tokens to the routing table.

Answer

Because tokens replace the need for all authorization decisions.

Answer

Because a token can be used only over Telnet, not HTTPS.

Question 6

Which statement best explains why HTTPS and tokens are often used together in API-driven automation?

Accepted Answer

HTTPS protects the channel, while the token helps represent access to the API.. They are often used together because they solve different parts of secure API access. In practical terms, HTTPS protects the transport channel, while the token helps represent or convey access rights for the client. One secures the path, and the other helps control who can use the API.

This is a layered automation-security concept rather than a single-technology question.

Answer

The token replaces the need for HTTPS entirely.

Answer

HTTPS is used only when JSON is absent.

Answer

Tokens can be used only by wireless controllers and not routers.

Question 7

Which statement best describes why JSON and YANG are related but not the same thing in automation workflows?

Accepted Answer

YANG defines structured models, while JSON is a format used to carry structured data.. They are related because both appear in model-driven automation, but they solve different problems. In practical terms, YANG is used to describe how network information should be structured, while JSON is a data format that can carry structured information in requests and responses. One defines the model, and the other can represent the data.

This is a useful conceptual distinction because candidates often blur data modeling and payload formatting together.

Answer

JSON defines routing policy and YANG provides encryption.

Answer

YANG can be used only on switches, while JSON can be used only on routers.

Answer

They are simply two names for the same API method.

Question 8

Which statement best explains why methods such as GET and DELETE matter in API design?

Accepted Answer

They express the intended action of the request against the targeted resource.. They matter because they communicate the intended action of a request. In practical terms, the same endpoint may support different operations depending on the method used. A client and server need that shared meaning so the platform knows whether the request is meant to retrieve, remove, update, or create data.

This is a foundational API reasoning concept, not just a memorization of labels.

Answer

They replace the need for endpoints entirely.

Answer

They are used only for wireless management and nowhere else.

Answer

They determine the STP root bridge for the network.

Question 9

Which statement best describes why a controller-based network platform benefits from northbound APIs?

Accepted Answer

They allow external applications and automation tools to interact with the controller.. Northbound APIs are useful because they let external applications and automation tools interact with the controller in a structured way. In practical terms, they give dashboards, orchestration systems, and scripts a defined interface for reading state or requesting changes. That supports integration and automation at scale.

The important distinction is that northbound APIs face applications, while other interfaces may face managed infrastructure.

Answer

They replace all need for wireless access points.

Answer

They are used only to elect STP root bridges.

Answer

They are the same thing as DHCP relay helpers.

Question 10

Which statement best describes YANG in a network automation context?

Accepted Answer

It is a data modeling language for configuration and operational data. YANG is a data modeling language used to describe configuration and operational state. It defines the structure of the data; protocols such as NETCONF or RESTCONF transport that data.

Answer

It is a transport protocol that replaces HTTPS

Answer

It is a Cisco-only scripting language for switch automation

Answer

It is a logging format used by telemetry collectors

Question 11

Match each automation-related term to its most accurate description.

Accepted Answer

Ansible: An agentless automation tool that uses SSH and YAML playbooks for configuration management.. Ansible is an agentless automation tool that uses SSH and YAML playbooks for configuration management. Puppet uses a client-server model with agents and a declarative language (Puppet DSL) to enforce desired states. Chef uses Ruby-based recipes and cookbooks for infrastructure configuration. SaltStack uses a master-minion architecture for remote execution and state management with YAML and Jinja2 templates.

Question 12

Match each controller or API direction term to its most accurate meaning.

Accepted Answer

Northbound API: Interface between the SDN controller and applications, typically using RESTful APIs.. Options A, B, and C each accurately define a standard SDN direction term: Northbound API (controller to applications), Southbound API (controller to network devices), and East-West API (between controllers in distributed environments). Option D is incorrect because REST API is a protocol, not a direction term; it describes how APIs communicate, but it is not a directional interface in the SDN model.

Answer

REST API: A protocol used for communication between controller and applications, typically over HTTP.

Question 13

Match each JSON concept to its most accurate description.

Accepted Answer

JSON: Lightweight data-interchange format that is easy for humans to read and write. Each option correctly pairs a fundamental JSON concept with its standard definition: A pairs JSON with its lightweight, human-readable format; B pairs Object with its curly brace-enclosed name/value pairs; C pairs Array with its square bracket-enclosed ordered list; D pairs String with its double-quoted Unicode sequence. All align with the JSON specification.

Question 14

Match each automation or programmability term to its most accurate description.

Accepted Answer

Controller: Central platform used to coordinate policy and management. These terms are fundamental to network automation and programmability. A controller centralizes policy and management. An API provides a defined software interface for system interaction. JSON is a lightweight structured data format. YANG is a data modeling language for network information.

Question 15

Match each API or automation concept to the most accurate description.

Accepted Answer

REST API: Uses HTTP methods to perform CRUD operations on resources. Each pairing is correct: REST APIs use HTTP methods for CRUD operations; SOAP is a protocol using XML for structured exchange; Webhooks are HTTP callbacks triggered by events; API Gateways manage traffic, authentication, and throttling. These are fundamental concepts for network automation and programmability.