HCLTech Product Engineer Interview Questions and Answers

Q1. Basic coding in c++ and hr related questions
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Q2. What is linkedlist
Ans. 
A linked list is a data structure that consists of nodes where each node contains a data field and a reference to the next node in the sequence.
• Consists of nodes connected by pointers

• Each node contains data and a reference to the next node

• Allows for dynamic size and efficient insertion/deletion
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Data interpretation good knowledge one should have

Python or java basic coding problems

Q1. What are the concepts of Object-Oriented Programming (OOP)?
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Q2. NA
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Q1. What specific aspects of your resume were you questioned about during the interview?
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Online test consists of
1. Aptitude section
2. Coding
3. Essay writing

1. Aptitude which contains Quants + Logical + Verbal
2. Coding (2 questions)
3. Essay Writing(, 400 words in 20 mins)

Q1. Decrypting the given string
Ans. 
The question is about decrypting a given string.
• Ask for more information about the encryption method used

• Check if there are any clues or hints provided

• Try different decryption techniques such as substitution, transposition, or symmetric/asymmetric encryption

• Use online tools or libraries to assist with decryption
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Q2. DSA based question
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Implement a function to check if a given string is a palindrome or not.
• A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.

• Convert the string to lowercase and remove all non-alphanumeric characters.

• Compare the first and last characters, then the second and second-to-last characters, and so on until the middle of the string is reached.

• If all pairs match, the s...read more
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Q3. Essay topic:- which one would be given higher priority passion or salary
Ans. 
Passion or salary: which should be given higher priority?
• Passion should be given higher priority as it leads to job satisfaction and better performance

• Salary is important but it should not be the sole factor in choosing a job

• Passion can also lead to better career growth and opportunities

• However, financial stability is also important and should not be ignored completely
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Q1. Asked me to introduce myself.
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I am a product engineer with experience in designing and developing innovative products.
• I have a degree in mechanical engineering and have worked in the field for 5 years.

• I have experience in CAD software and 3D printing.

• I have designed and developed products such as a smart water bottle and a portable solar charger.

• I am passionate about creating products that improve people's lives.
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Q2. Asked about my project
Ans. I did a mini project on random password generator in python and described the whole process of the project and result with validation
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Q3. Asked the difference between C and Java
Ans. 
C is a low-level language while Java is a high-level language with automatic memory management.
• C is compiled while Java is interpreted

• C has pointers while Java does not

• Java has built-in garbage collection while C does not

• Java is platform-independent while C is not

• Java has a larger standard library than C
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Q4. Asked about method overloading
Ans. 
Method overloading is a feature in OOP where multiple methods can have the same name but different parameters.
• Method overloading allows for more flexibility in programming

• The compiler determines which method to call based on the number and type of arguments passed

• Example: public void print(int num) and public void print(String str) can both be called using print() method
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Q5. Asked me to explain a program in any programming language I was comfortable in
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Explained a program in a programming language I was comfortable in
• I chose to explain a program in Python

• The program was a simple calculator that could perform basic arithmetic operations

• I explained the code step by step, starting with importing the necessary modules and defining functions

• I also discussed the use of variables and data types in the program

• Finally, I demonstrated how the program could be run and tested wi
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Q6. Asked me to explain about OOPs concepts
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OOPs concepts are a programming paradigm that focuses on objects and their interactions.
• OOPs stands for Object-Oriented Programming.

• It involves the use of classes, objects, encapsulation, inheritance, and polymorphism.

• Classes are templates for creating objects, while objects are instances of classes.

• Encapsulation is the process of hiding the implementation details of an object from the outside world.

• Inheritance allows ...read more
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Q7. Are you okay with relocation?
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Yes, I am open to relocation for the right opportunity.
• I am willing to relocate for a challenging and rewarding role

• I am open to exploring new cities and cultures

• I understand that relocation may be necessary for career growth

• I am willing to consider relocation assistance if offered

• Examples: I have previously relocated for a job opportunity and enjoyed the experience

• I have researched the potential new location and am ex
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Q8. Are you okay signing a service bond?
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Yes, I am willing to sign a service bond.
• I understand that a service bond is a commitment to work for a certain period of time with the company.

• I am willing to sign a service bond if it is reasonable and fair.

• I would like to know the terms and conditions of the bond before signing it.

• I believe that signing a service bond shows my commitment to the company and the product.

• Examples of reasonable service bond terms includ...read more
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Q1. Basic technical questions related to your field
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