Honeywell Automation Senior Software Engineer 2 Interview Questions and Answers

Q1. Can you explain the difference between a stack and a queue and provide a real-world example where each would be used.
Ans. 
A stack is a Last In First Out (LIFO) data structure, while a queue is a First In First Out (FIFO) data structure.
• Stack: LIFO - Last In First Out. Example: browser history where the last page visited is the first to be accessed.

• Queue: FIFO - First In First Out. Example: a line at a grocery store where the first person in line is the first to be served.
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Q2. Given an array of integers, write a function to find the two numbers that add up to a specific target. How would you optimize this solution?
Ans. 
Function to find two numbers in array that add up to target. Optimize solution.
• Use a hash map to store each number and its index as you iterate through the array.

• For each number, check if the difference between the target and the number exists in the hash map.

• Return the indices of the two numbers that add up to the target.
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Q1. Just based on resume
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Q1. Tell me about your projects
Ans. 
I have worked on various projects including web development, mobile app development, and data analysis.
• Developed a web application using React and Node.js for a client in the e-commerce industry

• Created a mobile app using Flutter for tracking daily expenses

• Performed data analysis on customer feedback data using Python and SQL
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Q2. He gave me a DSA question.
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Q3. Asked about oops concepts
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Q4. Asked about dbms
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Q1. What is transformer?
Ans. 
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Transformers are commonly used to increase or decrease voltage in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils.

• The primary coil is connected to a power source, while the secondary coil is connected to the load.

• Examples of transformers include power ...read more
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Q2. What is the use of relay in DI
Ans. 
Relays in Dependency Injection are used to control the creation and lifecycle of objects.
• Relays help in decoupling the creation of objects from their usage.

• They can be used to provide different implementations of an interface based on certain conditions.

• Relays can also be used for lazy loading of objects to improve performance.

• They help in managing the dependencies of objects in a flexible and modular way.
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Q3. Compare profinet and ethernet
Ans. 
Profinet is a real-time industrial Ethernet protocol used for automation, while Ethernet is a general networking protocol used for data communication.
• Profinet is specifically designed for industrial automation applications, providing real-time communication and deterministic behavior.

• Ethernet is a widely used networking protocol for general data communication in various industries and applications.

• Profinet offers highe...read more
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Q4. What is RS232 protocol
Ans. 
RS232 protocol is a standard for serial communication between devices, commonly used in computer systems.
• RS232 uses a DB9 or DB25 connector for communication

• It uses asynchronous communication

• Data is transmitted one bit at a time

• Commonly used for connecting devices like modems, printers, and GPS receivers
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Q1. Good URI design
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Q2. Accessing id parameter in URL
Ans. 
Accessing id parameter in URL involves parsing the URL and extracting the id value.
• Use the window.location object to access the URL of the current page.

• Parse the URL using methods like split() or URLSearchParams to extract the id parameter.

• Example: If the URL is 'http://example.com/page?id=123', you can access the id value by parsing the URL.
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Q1. Salary expectations
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Q2. Plan of growing up technically
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Q1. React , hooks concept
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Q2. Bootstrap- UI and related questions
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30 min 30 ques and gaming ques

Q1. What is ML and AI in your project?
Ans. 
ML and AI are used in our project to analyze user behavior and provide personalized recommendations.
• ML algorithms are used to analyze user data and predict user preferences.

• AI is used to provide personalized recommendations based on the analysis of user behavior.

• Examples include recommendation systems for e-commerce websites and personalized content suggestions on streaming platforms.
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Q2. What is lagging concept and more?
Ans. 
Lagging concept refers to a concept or idea that is behind or not up to date compared to current standards or practices.
• Refers to outdated technology or methods in software development

• Can lead to inefficiencies, bugs, or security vulnerabilities

• Examples include using deprecated libraries or not following best practices for coding
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Building selection system using best practices in C# dot net, SOLID principle, Design Patterns.
It was above average difficult question and time was less. But they were ok to give more time to complete the system. lasted around 4 hours

Asked questions about previous experience and my aptitude. they were keep to know if I am ok to work in fast pace environment. lasted around 40 mins.