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. Which of the following is NOT a deployment strategy?
A.
Blue-green deployment
B.
Canary deployment
C.
Shadow deployment
D.
Data augmentation
Show solution
Solution
Data augmentation is a technique used during model training to increase the diversity of the training dataset, not a deployment strategy.
Correct Answer:
D
— Data augmentation
Learn More →
Q. Which of the following is NOT a feature engineering technique?
A.
Binning
B.
Feature Extraction
C.
Data Augmentation
D.
Gradient Descent
Show solution
Solution
Gradient Descent is an optimization algorithm, not a feature engineering technique.
Correct Answer:
D
— Gradient Descent
Learn More →
Q. Which of the following is NOT a feature of HTTPS?
A.
Data encryption
B.
Data integrity
C.
Authentication
D.
Faster loading times
Show solution
Solution
HTTPS provides data encryption, integrity, and authentication, but it does not inherently guarantee faster loading times.
Correct Answer:
D
— Faster loading times
Learn More →
Q. Which of the following is NOT a function of a router?
A.
Packet forwarding
B.
Traffic management
C.
Error detection
D.
Data encryption
Show solution
Solution
Data encryption is not a primary function of a router; routers focus on packet forwarding and traffic management.
Correct Answer:
D
— Data encryption
Learn More →
Q. Which of the following is NOT a function of the Application layer in the OSI model?
A.
File transfer
B.
Email services
C.
Data encryption
D.
Routing packets
Show solution
Solution
Routing packets is not a function of the Application layer; it is handled by the Network layer.
Correct Answer:
D
— Routing packets
Learn More →
Q. Which of the following is NOT a function of the Application Layer?
A.
File transfer
B.
Email services
C.
Data routing
D.
Web services
Show solution
Solution
Data routing is not a function of the Application Layer; it is handled by the Network Layer.
Correct Answer:
C
— Data routing
Learn More →
Q. Which of the following is NOT a function of the Data Link Layer?
A.
Framing
B.
Physical addressing
C.
Routing
D.
Error detection
Show solution
Solution
Routing is not a function of the Data Link Layer; it is performed by the Network Layer.
Correct Answer:
C
— Routing
Learn More →
Q. Which of the following is NOT a function of the Network Layer?
A.
Packet forwarding
B.
Logical addressing
C.
Error recovery
D.
Routing
Show solution
Solution
Error recovery is not a function of the Network Layer; it is typically handled by the Transport Layer.
Correct Answer:
C
— Error recovery
Learn More →
Q. Which of the following is NOT a function of the Transport Layer?
A.
Segmentation of data
B.
Flow control
C.
Routing of packets
D.
Error detection
Show solution
Solution
Routing of packets is not a function of the Transport Layer; it is handled by the Network Layer.
Correct Answer:
C
— Routing of packets
Learn More →
Q. Which of the following is NOT a kernel function used in Support Vector Machines?
A.
Linear kernel
B.
Polynomial kernel
C.
Radial Basis Function (RBF) kernel
D.
Logistic kernel
Show solution
Solution
The Logistic kernel is not commonly used in Support Vector Machines; the other three are standard kernel functions.
Correct Answer:
D
— Logistic kernel
Learn More →
Q. Which of the following is NOT a key component of MLOps?
A.
Continuous integration
B.
Model monitoring
C.
Data labeling
D.
Version control
Show solution
Solution
Data labeling is a part of the data preparation process, not a key component of MLOps.
Correct Answer:
C
— Data labeling
Learn More →
Q. Which of the following is NOT a layer in the OSI model?
A.
Transport Layer
B.
Network Layer
C.
Internet Layer
D.
Session Layer
Show solution
Solution
The Internet Layer is part of the TCP/IP model, not the OSI model.
Correct Answer:
C
— Internet Layer
Learn More →
Q. Which of the following is NOT a limitation of Dijkstra's algorithm?
A.
It cannot handle negative weight edges
B.
It is not suitable for dense graphs
C.
It finds the shortest path from a single source
D.
It can be inefficient for large graphs
Show solution
Solution
Dijkstra's algorithm is designed to find the shortest path from a single source to all other nodes, which is one of its primary functions.
Correct Answer:
C
— It finds the shortest path from a single source
Learn More →
Q. Which of the following is NOT a limitation of linear regression?
A.
Assumes a linear relationship
B.
Sensitive to outliers
C.
Can only handle numerical data
D.
Can model complex relationships
Show solution
Solution
Linear regression cannot model complex relationships, which is a limitation, but it can handle numerical data and is sensitive to outliers.
Correct Answer:
D
— Can model complex relationships
Learn More →
Q. Which of the following is NOT a method of feature extraction?
A.
TF-IDF
B.
Bag of Words
C.
One-Hot Encoding
D.
Linear Regression
Show solution
Solution
Linear Regression is a modeling technique, not a feature extraction method.
Correct Answer:
D
— Linear Regression
Learn More →
Q. Which of the following is NOT a method of feature selection?
A.
Recursive feature elimination
B.
Lasso regression
C.
Principal component analysis
D.
Random forest feature importance
Show solution
Solution
Principal component analysis (PCA) is a dimensionality reduction technique, not a feature selection method.
Correct Answer:
C
— Principal component analysis
Learn More →
Q. Which of the following is NOT a method of linkage in hierarchical clustering?
A.
Single linkage
B.
Complete linkage
C.
Average linkage
D.
Random linkage
Show solution
Solution
Random linkage is not a recognized method of linkage in hierarchical clustering; the common methods include single, complete, and average linkage.
Correct Answer:
D
— Random linkage
Learn More →
Q. Which of the following is NOT a phase of syntax analysis?
A.
Parsing
B.
Lexical analysis
C.
Semantic analysis
D.
Intermediate code generation
Show solution
Solution
Intermediate code generation is not a phase of syntax analysis; it occurs after syntax analysis.
Correct Answer:
D
— Intermediate code generation
Learn More →
Q. Which of the following is NOT a phase of the compilation process?
A.
Lexical analysis
B.
Syntax analysis
C.
Runtime environment setup
D.
Code generation
Show solution
Solution
Runtime environment setup is not a phase of compilation; it is part of the execution of the compiled program.
Correct Answer:
C
— Runtime environment setup
Learn More →
Q. Which of the following is NOT a property of a binary search tree?
A.
Left child < parent
B.
Right child > parent
C.
All nodes are unique
D.
All nodes are at the same level
Show solution
Solution
In a binary search tree, all nodes are not required to be at the same level; this is not a property of BSTs.
Correct Answer:
D
— All nodes are at the same level
Learn More →
Q. Which of the following is NOT a property of a binary tree?
A.
Each node has at most two children
B.
The left child is always less than the parent
C.
The right child is always greater than the parent
D.
It can be empty
Show solution
Solution
The property that the left child is always less than the parent is specific to binary search trees, not all binary trees.
Correct Answer:
B
— The left child is always less than the parent
Learn More →
Q. Which of the following is NOT a property of a Red-Black tree?
A.
Every node is either red or black.
B.
The root is always red.
C.
Red nodes cannot have red children.
D.
Every path from a node to its descendant leaves must have the same number of black nodes.
Show solution
Solution
The root of a Red-Black tree must always be black, not red.
Correct Answer:
B
— The root is always red.
Learn More →
Q. Which of the following is NOT a property of AVL trees?
A.
The heights of two child subtrees of any node differ by at most one
B.
Every node is colored either red or black
C.
In-order traversal yields sorted order
D.
The tree is a binary search tree
Show solution
Solution
AVL trees do not have a coloring property; that is a characteristic of Red-Black trees.
Correct Answer:
B
— Every node is colored either red or black
Learn More →
Q. Which of the following is NOT a property of Red-Black trees?
A.
Every node is either red or black
B.
The root is always black
C.
All leaves are red
D.
Every path from a node to its descendant leaves has the same number of black nodes
Show solution
Solution
In Red-Black trees, all leaves (NIL nodes) are black, not red.
Correct Answer:
C
— All leaves are red
Learn More →
Q. Which of the following is NOT a real-world application of balanced trees?
A.
Memory management
B.
Network routing tables
C.
Web page ranking
D.
Data compression algorithms
Show solution
Solution
Data compression algorithms typically do not use balanced trees; they often rely on different structures like Huffman trees.
Correct Answer:
D
— Data compression algorithms
Learn More →
Q. Which of the following is NOT a real-world application of shortest path algorithms?
A.
Network routing
B.
Urban traffic management
C.
Social network analysis
D.
Sorting data in a database
Show solution
Solution
Sorting data in a database is not a real-world application of shortest path algorithms; it is related to data organization rather than pathfinding.
Correct Answer:
D
— Sorting data in a database
Learn More →
Q. Which of the following is NOT a requirement for binary search?
A.
The dataset must be sorted
B.
The dataset must be in an array format
C.
The dataset must allow random access
D.
The dataset must be of finite size
Show solution
Solution
Binary search does not require the dataset to be in an array format; it can also be applied to other structures that allow random access.
Correct Answer:
B
— The dataset must be in an array format
Learn More →
Q. Which of the following is NOT a step in Dijkstra's algorithm?
A.
Initialize distances
B.
Select the node with the smallest distance
C.
Update distances of adjacent nodes
D.
Sort the entire graph
Show solution
Solution
Dijkstra's algorithm does not require sorting the entire graph; it focuses on updating distances based on the selected node.
Correct Answer:
D
— Sort the entire graph
Learn More →
Q. Which of the following is NOT a step in the dynamic programming approach?
A.
Characterizing the structure of an optimal solution
B.
Recursively solving the problem
C.
Storing the results of subproblems
D.
Constructing a solution from optimal subsolutions
Show solution
Solution
While recursion can be used in dynamic programming, it is not a necessary step; dynamic programming can also be implemented iteratively.
Correct Answer:
B
— Recursively solving the problem
Learn More →
Q. Which of the following is NOT a step in the K-means clustering algorithm?
A.
Assigning data points to the nearest centroid
B.
Updating the centroid positions
C.
Calculating the silhouette score
D.
Choosing the initial centroids
Show solution
Solution
Calculating the silhouette score is not a step in the K-means algorithm; it is an evaluation metric used after clustering.
Correct Answer:
C
— Calculating the silhouette score
Learn More →
Showing 2791 to 2820 of 3237 (108 Pages)