Computer Knowledge - MCQ Practice Questions

What is the time complexity of quicksort algorithm in the worst case?

In cloud computing, which service model allows customers to run their own applications but not manage infrastructure?

What is the difference between DELETE and TRUNCATE in SQL?

In graph algorithms, which algorithm finds the shortest path in weighted graphs?

What does normalization in machine learning context primarily aim to achieve?

In cybersecurity, what is SQL injection attack?

What is the primary difference between supervised and unsupervised machine learning?

In database indexing, which type of index structure provides the best average-case performance for range queries in modern database systems?

Which of the following SQL query optimization techniques is most effective when dealing with large fact tables in a data warehouse environment?

In the context of distributed databases, which consistency model is used by most cloud-native databases like DynamoDB and offers eventual consistency?