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Computer Knowledge - MCQ Practice Questions

Practice free Computer Knowledge multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

309 questions | 100% Free

Q.241Medium

Which of the following is a characteristic of NoSQL databases?

Q.242Medium

What is the purpose of database sharding?

Q.243Medium

In AI/ML, what does a neural network's activation function do?

Q.244Medium

Which of the following best describes microservices architecture?

Q.245Medium

What is the purpose of connection pooling in database management?

Q.246Hard

In cybersecurity, what is a zero-day vulnerability?

Q.247Medium

Which sorting algorithm is most efficient for nearly sorted data?

Q.248Hard

What does BASE model in NoSQL stand for?

Q.249Medium

In cloud security, what is the principle of least privilege?

Q.250Easy

Which of the following is a ACID property that ensures all or nothing transaction execution?

Q.251Easy

What is the primary advantage of using INNER JOIN over OUTER JOIN in SQL?

Q.252Easy

In a relational database, what does normalization primarily aim to eliminate?

Q.253Easy

Which algorithm has O(n log n) time complexity and is preferred for large datasets in modern databases?

Q.254Easy

What is the primary purpose of indexing in databases?

Q.255Easy

In the OSI model, which layer is responsible for routing and logical addressing?

Q.256Medium

Which of the following is NOT a characteristic of relational databases?

Q.257Medium

What does CAP theorem state about distributed database systems?

Q.258Medium

In SQL, what is the difference between HAVING and WHERE clauses?

Q.259Medium

Which data structure is most efficient for implementing a LRU (Least Recently Used) cache?

Q.260Medium

In cloud computing, what does the term 'eventual consistency' refer to?