Utthunga Technologies Software Developer Interview Questions and Answers for Experienced

Q1. What is the concept of virtual inheritance in relation to vtables and vptrs in object-oriented programming?
Ans. 
Virtual inheritance allows a derived class to inherit from a base class without creating duplicate base class subobjects.
• Virtual inheritance is used to resolve the Diamond Problem in C++ where a class inherits from two classes that have a common base class.

• It ensures that only one copy of the base class is inherited by the derived class.

• Virtual inheritance introduces a virtual base class subobject to the derived class,...read more
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Q2. Explained about vtptr and vtable initialisation and structure
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Q1. What is the implementation of a class for string operations?
Ans. 
A class for string operations can include methods for concatenation, substring extraction, length calculation, etc.
• Create a class with methods like concatenateStrings, extractSubstring, calculateLength, etc.

• Use string manipulation functions like substring, concat, length, etc. within the class methods.

• Ensure error handling for edge cases like empty strings or out-of-bounds indices.

• Example: class StringOperations { conc...read more
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Given programming questions
String programs

Q1. Asked basic to intermediate level questions Datatypes OOP concepts Code snippets
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Q1. Why do you want to join this company?
Ans. 
I admire your company's innovative approach and commitment to quality, which aligns with my career goals and values as a developer.
• Your company's focus on cutting-edge technology, like AI and machine learning, excites me as I want to work on impactful projects.

• I appreciate your commitment to professional development, such as mentorship programs, which will help me grow my skills.

• The collaborative culture here fosters c...read more
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Q2. What are the sql constraints?
Ans. 
SQL constraints are rules applied to table columns to enforce data integrity and validity.
• PRIMARY KEY: Uniquely identifies each record in a table. Example: `CREATE TABLE Users (UserID INT PRIMARY KEY);`

• FOREIGN KEY: Ensures referential integrity between two tables. Example: `FOREIGN KEY (UserID) REFERENCES Users(UserID)`.

• UNIQUE: Ensures all values in a column are different. Example: `CREATE TABLE Users (Email VARCHAR(25...read more
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Q1. 1. Basic OOP Concepts 2. Difference between structure and class in terms of constructor 3. Can members of structure be defined as private 4. What's lambda function and it's real life use case 5. Difference...read more
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Q2. 6. What's O(n) in time and space complexity
Ans. 
O(n) refers to linear time and space complexity.
• O(n) means that the time or space required by an algorithm grows linearly with the size of the input.

• It implies that the algorithm's performance is directly proportional to the input size.

• For example, if an algorithm takes 10 seconds to process 100 elements, it would take 20 seconds to process 200 elements.

• O(n) complexity is considered efficient and desirable in most case
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Q1. OOPs concepts and program on linked list reversal and c pointer concepts
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Q1. OOPs concepts,C basis, IPC and signals
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Q1. OOPs concepts, c basics, data structures
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Q1. Share details of your previous job.
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Q2. What are your salary expectations?
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Q3. What is your family background?
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Q4. Why are you looking for a change?
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Q5. Tell me about yourself.
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Q1. Testing Technical Skill mentioned in Resume & Which ever need for the project we are going to work on
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Q2. What is Python and its data types
Ans. 
Python is a high-level, interpreted programming language with dynamic semantics.
• Python has several built-in data types including integers, floats, strings, booleans, and complex numbers.

• It also has built-in data structures like lists, tuples, and dictionaries.

• Python supports object-oriented programming and has a rich standard library.

• Examples: x = 5 (integer), y = 3.14 (float), z = 'hello' (string), a = True (boolean),...read more
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Q3. What is logic building/thinking & where we need to apply this?
Ans. 
Logic building/thinking is the process of analyzing and solving problems using reasoning and critical thinking skills.
• It involves breaking down complex problems into smaller, more manageable parts

• Identifying patterns and relationships between different pieces of information

• Using deductive and inductive reasoning to draw conclusions

• Applying logical principles to solve problems in various fields such as computer programm...read more
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Q1. Salary Expectations and Negotiations
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Q2. What do you think about your growth after joining to our organisation?
Ans. 
I believe that joining your organization will provide me with ample opportunities for growth and development.
• I am confident that I will be able to learn and acquire new skills in a dynamic and challenging environment.

• I am excited about the potential for career advancement and the chance to work on innovative projects.

• I look forward to collaborating with talented colleagues and mentors who can guide and inspire my profe...read more
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Mostly Arithmetic questions, few logical reasoning questions

Simple coding questions like Fibonacci series, string coding questions etc

Q1. Asked to write on paper some coding questions logic
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Q2. Reverse the elements in the array coding question
Ans. 
Reverse the elements in the array of strings
• Iterate through the array and swap the elements from start to end

• Use two pointers, one at the start and one at the end, and swap the elements until they meet

• Use a temporary variable to store the element being swapped
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Q3. Reverse words in a string coding question
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