CCNA AI and Network Operations Practice Test 8 — 15 Questions

Question 1

An API client sends a valid GET request and receives an HTTP 200 response. What does that indicate?

Accepted Answer

The request was successful. HTTP 200 indicates a successful request. For a GET operation, it generally means the server successfully returned the requested resource representation.

Answer

The resource was deleted successfully

Answer

Authentication permanently failed

Answer

The server requires a reboot

Question 2

Why is version control valuable for network automation files?

Accepted Answer

It tracks changes and allows rollback to earlier versions. Version control systems help teams track who changed what, compare revisions, and restore earlier states when needed. That improves operational discipline but does not guarantee correctness by itself.

Answer

It increases interface bandwidth

Answer

It replaces the need for device backups

Answer

It guarantees that configuration changes are error free

Question 3

Why is version control useful for network automation scripts?

Accepted Answer

It tracks changes and supports rollback and review. Version control provides change history, collaboration, and rollback options for scripts and infrastructure-as-code files.

Answer

It automatically fixes coding mistakes

Answer

It removes the need for API authentication

Answer

It replaces the device operating system

Question 4

What is a main operational benefit of a controller-based networking architecture?

Accepted Answer

It centralizes policy and can simplify network-wide changes. Controller-based architectures centralize the control plane, enabling network-wide policy management and simplifying changes. This is the correct answer because it accurately describes the primary operational benefit. Option A is wrong because controller-based architectures still require IP addressing for management and communication. Option C is wrong because the data plane on switches remains operational for local forwarding; only the control plane may be centralized. Option D is wrong because dynamic routing protocols can still be used, and routes are not forced to be static.

Answer

It removes the need for IP addressing

Answer

It eliminates the data plane on switches

Answer

It forces all routes to become static

Question 5

What is a northbound API in a controller-based network architecture?

Accepted Answer

An interface used by applications to communicate with the controller. Northbound APIs allow external applications, dashboards, and automation tools to interact with the controller. Southbound APIs are used by the controller to communicate with the network devices it manages.

Answer

An interface used by the controller to program forwarding tables on switches

Answer

A dedicated out-of-band management port on the controller

Answer

A wireless uplink between access points and the controller

Question 6

Which HTTP method is commonly used to retrieve information from a REST API without modifying the resource?

Accepted Answer

GET. GET is the standard HTTP method for retrieving a resource representation without changing the resource.

Answer

POST

Answer

PUT

Answer

DELETE

Question 7

Which two tasks are strong candidates for network automation? (Choose two.)

Accepted Answer

Polling many devices for interface status on a schedule. Automation works best for repetitive, rule-based tasks such as gathering state information or pushing standard configuration changes across many devices.

Answer

Replacing a failed power supply in a branch switch

Answer

Tracing one cable through a crowded rack by hand

Answer

Listening for fan noise in a wiring closet

Question 8

Why are data models such as YANG important in network automation?

Accepted Answer

They define a structured way to represent configuration and state data. Data models such as YANG standardize how configuration and operational data are described, which improves consistency for automation systems and APIs.

Answer

They replace IPv4 and IPv6 addressing

Answer

They remove the need for routing protocols

Answer

They are used only for naming wireless SSIDs

Question 9

Given the JSON snippet below, what is the value of hostname?

{
  "device": {
    "hostname": "R1",
    "mgmt_ip": "192.0.2.10"
  }
}

Accepted Answer

R1. The key hostname inside the device object has the value R1.

Answer

device

Answer

hostname

Answer

192.0.2.10

Question 10

Which data format is commonly used with REST APIs to represent objects, arrays, and key-value pairs?

Accepted Answer

JSON. JSON is a common data-interchange format used in APIs and automation systems.

Answer

STP

Answer

EIGRP

Answer

802.1Q

Question 11

Which HTTP method is typically used to retrieve data from a REST API without modifying the resource?

Accepted Answer

GET. GET requests are used to retrieve resource information. They are intended for read operations rather than creation, replacement, or deletion.

Answer

POST

Answer

PUT

Answer

DELETE

Question 12

Which pairing is correct?

Accepted Answer

RESTCONF — protocol that can use YANG-defined data models over HTTP-based access. RESTCONF is an HTTP-based API approach that commonly uses YANG-defined data models. JSON is a data-interchange format, YANG is the data modeling language, and NETCONF is a network management protocol rather than an STP feature.

Answer

JSON — data modeling language used to define network schemas such as YANG modules

Answer

YANG — lightweight interchange format built from curly braces and arrays

Answer

NETCONF — spanning-tree enhancement for rapid convergence

Question 13

Which tool type is most appropriate for turning a variable set of interface values into a reusable configuration template?

Accepted Answer

A templating engine. A templating engine allows you to create a reusable configuration pattern and populate it with variable values, making it ideal for turning variable interface values into templates. A packet sniffer captures network traffic and analyzes packets but does not generate configuration templates. A DNS recursive resolver translates domain names to IP addresses, which is unrelated to configuration templating. An STP root bridge manages loop-free topology in a switched network, not template creation.

Answer

A packet sniffer

Answer

A DNS recursive resolver

Answer

An STP root bridge

Question 14

What is version control primarily used for in network automation workflows?

Accepted Answer

To track changes and maintain history for code and templates. Version control tracks changes to code and configuration artifacts, enabling rollback, collaboration, and auditability.

Answer

To replace authentication for API clients

Answer

To automatically assign switchport VLANs in real time

Answer

To discover neighboring devices at Layer 2

Question 15

Which two statements about RESTful APIs are correct? (Choose two.)

Accepted Answer

They commonly use HTTP methods such as GET and POST.. REST commonly uses HTTP verbs and typically exchanges structured data such as JSON.

Answer

They require Layer 2 adjacency between client and server.

Answer

They replace the need for routing protocols on the network.