Computer Science & IT

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Computer Science & IT MCQ & Objective Questions

Computer Science & IT is a crucial subject for students preparing for school and competitive exams in India. Mastering this field not only enhances your understanding of technology but also significantly boosts your exam scores. Practicing MCQs and objective questions is an effective way to reinforce your knowledge and identify important questions that frequently appear in exams.

What You Will Practise Here

  • Fundamentals of Computer Science
  • Data Structures and Algorithms
  • Operating Systems Concepts
  • Networking Basics and Protocols
  • Database Management Systems
  • Software Engineering Principles
  • Programming Languages Overview

Exam Relevance

Computer Science & IT is an integral part of the curriculum for CBSE, State Boards, and competitive exams like NEET and JEE. Questions often focus on theoretical concepts, practical applications, and problem-solving skills. Common patterns include multiple-choice questions that test your understanding of key concepts, definitions, and the ability to apply knowledge in various scenarios.

Common Mistakes Students Make

  • Confusing similar concepts in data structures, such as arrays and linked lists.
  • Overlooking the importance of algorithms and their time complexities.
  • Misunderstanding the functions and roles of different operating system components.
  • Neglecting to practice coding problems, leading to difficulty in programming questions.
  • Failing to grasp the fundamentals of networking, which can lead to errors in related MCQs.

FAQs

Question: What are the best ways to prepare for Computer Science & IT exams?
Answer: Regular practice of MCQs, understanding key concepts, and reviewing past exam papers are effective strategies.

Question: How can I improve my problem-solving skills in Computer Science?
Answer: Engage in coding exercises, participate in study groups, and tackle a variety of practice questions.

Start your journey towards mastering Computer Science & IT today! Solve our practice MCQs to test your understanding and enhance your exam preparation. Remember, consistent practice is the key to success!

Q. What is the result of a post-order traversal on a binary tree?
  • A. Root, Left, Right
  • B. Left, Right, Root
  • C. Right, Left, Root
  • D. Left, Root, Right
Q. What is the result of a post-order traversal on the following binary tree: A, B, C, D?
  • A. A B C D
  • B. D C B A
  • C. B D C A
  • D. C B D A
Q. What is the result of a postorder traversal on a binary tree?
  • A. Root, Left, Right
  • B. Left, Right, Root
  • C. Right, Left, Root
  • D. Left, Root, Right
Q. What is the result of a postorder traversal on the binary tree with root 1, left child 2, and right child 3?
  • A. 1, 2, 3
  • B. 2, 3, 1
  • C. 3, 2, 1
  • D. 1, 3, 2
Q. What is the result of a pre-order traversal of the binary tree with root 1, left child 2, and right child 3?
  • A. 1, 2, 3
  • B. 2, 1, 3
  • C. 3, 1, 2
  • D. 1, 3, 2
Q. What is the result of an in-order traversal of a binary search tree?
  • A. Nodes in random order
  • B. Nodes in descending order
  • C. Nodes in ascending order
  • D. Nodes in level order
Q. What is the result of an in-order traversal of the binary tree with root 1, left child 2, and right child 3?
  • A. 1, 2, 3
  • B. 2, 1, 3
  • C. 3, 1, 2
  • D. 1, 3, 2
Q. What is the result of an inorder traversal of a binary search tree?
  • A. Sorted order of elements
  • B. Reverse sorted order of elements
  • C. Random order of elements
  • D. Level order of elements
Q. What is the result of an inorder traversal of the binary tree with root 1, left child 2, and right child 3?
  • A. 1, 2, 3
  • B. 2, 1, 3
  • C. 3, 1, 2
  • D. 1, 3, 2
Q. What is the result of applying dynamic programming to the Coin Change problem?
  • A. Finding the minimum number of coins
  • B. Finding all possible combinations of coins
  • C. Finding the maximum value of coins
  • D. Finding the average value of coins
Q. What is the result of binary search if the array is empty?
  • A. Returns 0
  • B. Returns -1
  • C. Returns null
  • D. Throws an error
Q. What is the result of binary search if the target is less than the middle element?
  • A. Search the left half
  • B. Search the right half
  • C. Return the middle element
  • D. End the search
Q. What is the result of dereferencing a null pointer?
  • A. It returns zero
  • B. It causes a segmentation fault
  • C. It returns a random value
  • D. It is valid and returns a pointer
Q. What is the result of performing a binary search on the array [2, 4, 6, 8, 10] for the value 5?
  • A. 5
  • B. 4
  • C. 6
  • D. Not found
Q. What is the result of performing binary search on a sorted array for an element not present in the array?
  • A. The index of the closest element
  • B. The index of the first element
  • C. The index of the last element
  • D. An indication that the element is not found
Q. What is the result of performing binary search on an array with duplicate values?
  • A. First occurrence of the value
  • B. Last occurrence of the value
  • C. Any occurrence of the value
  • D. None of the above
Q. What is the result of popping an element from an empty stack?
  • A. The top element is returned
  • B. An error is thrown
  • C. The stack remains unchanged
  • D. The stack is cleared
Q. What is the result of the following binary search on the array [1, 2, 3, 4, 5] for target 3?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. What is the role of 'bootstrap sampling' in Random Forests?
  • A. To select features for each tree
  • B. To create multiple subsets of the training data
  • C. To evaluate model performance
  • D. To increase the depth of trees
Q. What is the role of 'feature importance' in Random Forests?
  • A. To determine the number of trees in the forest.
  • B. To identify which features are most influential in making predictions.
  • C. To evaluate the model's performance.
  • D. To select the best hyperparameters.
Q. What is the role of 'max_features' in Random Forests?
  • A. To limit the number of trees in the forest
  • B. To control the maximum depth of each tree
  • C. To specify the maximum number of features to consider when looking for the best split
  • D. To determine the minimum number of samples required to split an internal node
Q. What is the role of 'reward' in reinforcement learning?
  • A. To measure the accuracy of predictions
  • B. To provide feedback to the agent about its actions
  • C. To cluster data points
  • D. To evaluate the model's performance
Q. What is the role of a 'model registry' in the deployment process?
  • A. To store raw data
  • B. To manage model versions and metadata
  • C. To visualize model performance
  • D. To preprocess data
Q. What is the role of a feature store in MLOps?
  • A. To store raw data
  • B. To manage and serve features for ML models
  • C. To deploy models
  • D. To monitor model performance
Q. What is the role of a load balancer in model deployment?
  • A. To train multiple models simultaneously
  • B. To distribute incoming requests across multiple instances of a model
  • C. To store model artifacts
  • D. To preprocess input data
Q. What is the role of a model registry in deployment?
  • A. To store raw data
  • B. To manage model versions and metadata
  • C. To visualize model performance
  • D. To train models automatically
Q. What is the role of a model serving framework in deployment?
  • A. To train the model
  • B. To manage model versions and scaling
  • C. To preprocess data
  • D. To visualize model performance
Q. What is the role of a model serving framework?
  • A. To train models on large datasets
  • B. To manage and serve machine learning models in production
  • C. To visualize model performance
  • D. To preprocess data for training
Q. What is the role of a peephole optimizer?
  • A. To optimize entire functions
  • B. To analyze the entire program
  • C. To make local optimizations on small sections of code
  • D. To generate intermediate code
Q. What is the role of a REST API in model deployment?
  • A. To train the model
  • B. To serve predictions from the model
  • C. To visualize model performance
  • D. To preprocess input data
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