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Grade 12 Quizzes, Questions & Answers

Recent Grade 12 Quizzes

Feature Selection Basics Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is the primary goal of feature selection in machine learning?

To increase the number of variables in a model

To identify and use only the most relevant features for prediction

To make all features have equal importance

To eliminate all categorical variables

Confusion Matrix Basics Quiz

Questions: 15 | Attempts: 24 | Last updated: May 1, 2026

Sample Question
In a confusion matrix, what does the term 'True Positive' (TP) represent?

Model correctly predicted positive when actual was positive

Model incorrectly predicted positive when actual was negative

Model correctly predicted negative when actual was negative

Model incorrectly predicted negative when actual was positive

Semantic Network Basics Quiz

Questions: 15 | Attempts: 27 | Last updated: May 1, 2026

Sample Question
What is a semantic network?

A graph structure using nodes and labeled links to represent knowledge

A computer network that stores only text data

A database system for organizing files

A visual representation of the internet

Difference Between Narrow and General AI Quiz

Questions: 15 | Attempts: 70 | Last updated: May 1, 2026

Sample Question
What is narrow AI, also known as weak AI?

AI designed to perform one specific task or a narrow range of tasks

AI that has achieved human-level intelligence

AI that can think creatively like humans

AI that operates only on narrow computer processors

Authentication Best Practices Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is the primary purpose of multi-factor authentication (MFA)?

To make login faster for users

To add multiple layers of security by requiring more than one verification method

To reduce the number of passwords needed

To store passwords in multiple locations

Input Validation Basics Quiz

Questions: 15 | Attempts: 13 | Last updated: May 1, 2026

Sample Question
What is input validation?

Checking that user data meets expected format and constraints

Encrypting all user input automatically

Deleting suspicious user submissions

Logging every keystroke a user makes

Cross Site Scripting Basics Quiz

Questions: 15 | Attempts: 13 | Last updated: May 1, 2026

Sample Question
What does XSS stand for in web security?

Cross Site Scripting

Secure XML Scripting

Cross System Security

External Script Source

HTTPS Encryption Basics Quiz

Questions: 15 | Attempts: 16 | Last updated: May 1, 2026

Sample Question
What does HTTPS stand for?

Hypertext Transfer Protocol Secure

Hypertext Transfer Protocol System

High Transfer Protocol Standard

Hypertext Transmission Protocol Server

Ionic Component Basics Quiz

Questions: 15 | Attempts: 10 | Last updated: May 1, 2026

Sample Question
What is the primary purpose of the Ionic Framework?

Build native mobile apps with web technologies

Create desktop applications only

Manage backend databases

Design static websites

Ionic Mobile Framework Overview Quiz

Questions: 15 | Attempts: 11 | Last updated: May 1, 2026

Sample Question
What is Ionic primarily used for?

Building native iOS apps only

Creating cross-platform mobile applications

Desktop software development

Web server management

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