Computer Knowledge - MCQ Practice Questions
Computer Science questions in competitive exams stay close to fundamentals, which is good news if you revise the right five subjects. Coverage includes data structures, algorithms and complexity, operating systems, database management systems, computer networks, and computer organisation. Explanations show the trace or the state table where one helps, since seeing the intermediate steps is what makes the concept stick.
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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?
Which of the following represents a vulnerability in SQL query construction that can be exploited through malicious user input, and can be prevented using parameterized queries?
In a sharded database architecture deployed on cloud infrastructure, which of the following represents the most critical challenge that must be addressed?