Honeywell Technology Solutions Interview Questions, Process, and Tips

Q1. Tell me about the project
Ans. 
Developed a predictive model to forecast customer churn for a telecom company
• Used machine learning algorithms such as logistic regression and random forest

• Performed data preprocessing and feature engineering to improve model accuracy

• Evaluated model performance using metrics like accuracy, precision, and recall
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Technical questions were easy and straight forward

Hackathon was conducted to check coding skills

Q1. Basic OS, dbms and cpp questions
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Q2. What is oops? Explain with examples
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects, which can contain data and code.
• OOPs allows for the organization of code into reusable components called objects

• It emphasizes concepts like inheritance, encapsulation, and polymorphism

• Example: Inheritance - a class 'Car' can inherit properties and methods from a class 'Vehicle'
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Q1. SQL JOINS AND QUERY
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Q2. PYTHON BASIC QUESTIONS
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Q1. TELL ABOUT MYSELF
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Q2. ABOUT PROJECT FROM STRACH
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MCQs on DSA, OOPS, SQL

Q1. What is the difference between C and C++?
Ans. 
C is a procedural programming language while C++ is an object-oriented programming language.
• C is a procedural programming language, while C++ supports both procedural and object-oriented programming paradigms.

• C does not support classes and objects, while C++ does.

• C does not have built-in support for exception handling, while C++ does.

• C does not have namespaces, while C++ does.

• C does not have function overloading, while
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Q2. What are the features of OOPS?
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OOPS (Object-Oriented Programming) features include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability to create new classes based on existing classes, inheriting their attributes and methods.

• Polymorphism: Ability to use a single interface to represent different data types or objects.

• Abstraction: Hid...read more
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Q3. Explain Linked lists and double-linked lists.
Ans. 
Linked lists are data structures where each element points to the next element, while double-linked lists have pointers to both the next and previous elements.
• Linked lists are made up of nodes, where each node contains data and a pointer to the next node.

• Double-linked lists have nodes with pointers to both the next and previous nodes, allowing for traversal in both directions.

• Example: Singly linked list: 1 -> 2 -> 3 ->...read more
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Q4. What are the types of traversals in trees?
Ans. 
Types of traversals in trees include inorder, preorder, postorder, and level order traversal.
• Inorder traversal: Visit left subtree, root, right subtree (L-R-N)

• Preorder traversal: Visit root, left subtree, right subtree (N-L-R)

• Postorder traversal: Visit left subtree, right subtree, root (L-R-N)

• Level order traversal: Visit nodes level by level from left to right
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