Capsitech IT Services Interview Questions, Process, and Tips

Basic aptitude questions which is in online mode

Q1. Oops concepts like encapsulation, method overriding, overloading , inheritance
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Q2. Basic html and css and about the projects
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Q3. What is an object, class, instance?
Ans. 
An object is an instance of a class, which is a blueprint for creating objects.
• An object is a specific instance of a class that contains data and behavior.

• A class is a blueprint or template for creating objects.

• An instance is a single occurrence of an object created based on a class.
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Q4. Explain about the project that you worked?
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Q1. Given a singly linked list, reverse it in place.
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Reverse a singly linked list in place
• Iterate through the linked list and reverse the pointers

• Use three pointers - prev, current, next to reverse the list

• Update the head pointer to the last node after reversing
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Q2. What is the process for removing duplicates from a string?
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To remove duplicates from a string, we can use a set data structure to store unique characters.
• Create an empty set to store unique characters.

• Iterate through each character in the string.

• Add each character to the set if it's not already present.

• Join the characters in the set to form the final string without duplicates.
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Fist round was mix of all topics online mcq's test on aptitude, english,python,java,sql etc

Q1. What are filters in CNN?
Ans. 
Filters in CNN are small matrices used to extract features from input data by performing convolution operations.
• Filters are applied to small regions of the input data to detect specific patterns or features.

• Each filter slides over the input data and performs element-wise multiplication followed by summation to produce a feature map.

• Filters are learned during the training process to capture important features for the ta...read more
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Q2. What is stack , queue, BST?
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Stack, queue, and BST are data structures used in computer science for storing and organizing data.
• Stack: Last in, first out data structure. Examples include undo functionality in text editors.

• Queue: First in, first out data structure. Examples include printer queues.

• BST (Binary Search Tree): Hierarchical data structure where each node has at most two children. Used for efficient searching and sorting.
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Q3. What is meant by MSE?
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MSE stands for Mean Squared Error, a common metric used to measure the average squared difference between predicted values and actual values.
• MSE is calculated by taking the average of the squared differences between predicted and actual values.

• It is commonly used in machine learning to evaluate the performance of regression models.

• Lower MSE values indicate better model performance, as they represent smaller errors betw...read more
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Q4. What is the difference between overfitting and underfitting?
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Overfitting occurs when a model learns the training data too well, leading to poor generalization. Underfitting occurs when a model is too simple to capture the underlying patterns in the data.
• Overfitting: model performs well on training data but poorly on unseen data

• Underfitting: model is too simple and fails to capture the underlying patterns in the data

• Overfitting can be addressed by using techniques like regulariza...read more
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Q1. Your general introduction.
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Q2. Youre previous job experience and working
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Q1. Basic accounting questions.
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Q2. Sound knowledge of MS office.
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