GraphQL Fundamentals: Queries, Mutations & Schema Design

• Mohammad Abu Mattar
• GraphQL
• API Development
• Quizzes
• 20 Questions
• Published: 26 Feb, 2026
• Level: Beginner

Welcome to the GraphQL Basics Quiz! Mastering GraphQL is essential for building efficient, flexible APIs that empower clients to request exactly what they need. This quiz will test your understanding

SQL: Query Fundamentals & Database Concepts

• Mohammad Abu Mattar
• SQL
• Databases
• Quizzes
• 20 Questions
• Published: 21 Feb, 2026
• Level: Beginner

Welcome to the SQL Basics Quiz! Relational databases are the bedrock of modern applications. Whether you're a developer writing queries or a DevOps engineer maintaining a production cluster, mastering