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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.261Medium

What is the primary benefit of containerization technology like Docker in modern application deployment?

Q.262Medium

In machine learning, what is a confusion matrix primarily used for?

Q.263Medium

Which encryption standard is currently recommended for securing data in transit over networks?

Q.264Medium

What is the time complexity of searching an element in a balanced Binary Search Tree?

Q.265Hard

In database replication, what is the primary difference between synchronous and asynchronous replication?

Q.266Hard

Which of the following best describes a distributed transaction and its challenges in microservices architecture?

Q.267Hard

In cybersecurity, what is SQL injection and why is it a critical vulnerability in 2024?

Q.268Hard

What is the primary advantage of using GraphQL over traditional REST APIs in modern application architecture?

Q.269Medium

What is the normal form that ensures no partial dependencies exist in a relation?

Q.270Hard

In a B-tree of order m, what is the maximum number of keys that a non-root node can contain?

Q.271Medium

Which of the following is a correct SQL syntax for creating an index on multiple columns?

Q.272Easy

What is the main disadvantage of using a linked list compared to arrays?

Q.273Easy

In AWS, what does the term 'Auto Scaling' primarily ensure?

Q.274Medium

Which sorting algorithm has the best average-case time complexity for randomly distributed data?

Q.275Medium

What does ACID compliance in databases ensure?

Q.276Easy

What is the primary function of a hash table data structure?

Q.277Medium

Which cloud service model provides pre-configured application environments?

Q.278Easy

What is the time complexity of the binary search algorithm on a sorted array?

Q.279Hard

In database normalization, what does the Boyce-Codd Normal Form (BCNF) address that 3NF might miss?

Q.280Easy

What is the purpose of the COMMIT statement in SQL transactions?