Ansys Software Private Limited Application Engineer 2 Interview Questions and Answers

First Round was Coding Test On Codility Platform . 3 Questions were Asked On Medium to Hard Level Arrays and Strings Topics.

Q1. Questions on the Approach of Solving the 1st Round Coding Problems.
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Q2. Questions on String Methods , Questions on String Palindrome and Substrings Palindrome.
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Q3. Sorting Techniques on Arrays , Questions on Two-Dimensional Arrays.
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Q4. Questions on Writing Base and Different Test Cases as per the Mentioned Problem Statement Given.
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Q1. Pillars of Object Oriented Programming. Real Life Example of Pillars of OOPS.
Ans. 
Pillars of OOP are Inheritance, Encapsulation, Abstraction, and Polymorphism. Real life example: Vehicles.
• Inheritance: Car and Bike classes inheriting from Vehicle class.

• Encapsulation: Data hiding in a class to protect it from outside interference.

• Abstraction: Using a remote control to operate a TV without knowing its internal workings.

• Polymorphism: Overloading a method with different parameters in a class.
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Q2. Is Function Overloading the Only Example of Compile Time Polymorphism ?
Ans. 
No, Function Overloading is not the only example of Compile Time Polymorphism.
• Function Templates are another example of Compile Time Polymorphism where a single function can operate on different data types.

• Operator Overloading is also an example of Compile Time Polymorphism where operators can be overloaded to work with different data types.

• Static Polymorphism achieved through method overloading is another example of C
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Q3. Difference Between Arrays and LinkedLists. Cons and Pros of Using Them. Which Out of Both Would be Preferable in Different Situations ?
Ans. 
Arrays store elements in contiguous memory locations, while LinkedLists store elements in nodes with pointers to the next element.
• Arrays have constant time access to elements using index, while LinkedLists have O(n) access time as they need to traverse from the beginning.

• Arrays have fixed size, while LinkedLists can dynamically grow and shrink in size.

• Arrays are better for random access and search operations, while Lin...read more
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Q4. Creating LinkedList Class , Insertion and Deletion in a LinkedList , Reversing and Sorting a LinkedList , Questions on Circular Linked List.
Ans. 
Answering questions related to LinkedList operations and Circular LinkedList.
• LinkedList Class: Implement a class with nodes containing data and a reference to the next node.

• Insertion: Add a new node at the beginning, end, or at a specific position in the LinkedList.

• Deletion: Remove a node by updating references to skip over it.

• Reversing: Traverse the LinkedList and reverse the links between nodes.

• Sorting: Implement a s...read more
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Q5. Questions Based on Binary Trees , Binary Search Trees and Recursion.
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Q6. Reverse a String without Using Any Loop or Using Any Other Data Structure.
Ans. 
Use recursion to reverse the string without using loops or other data structures.
• Create a recursive function that takes the string as input.

• In the function, check if the string is empty or has only one character, return the string in that case.

• Otherwise, call the function recursively with the substring excluding the first character and concatenate the first character at the end.
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Q7. Program to Find the Maximum Occurring Number in an Array. Which Data Structure can be Used for Making the Code More Efficient ?
Ans. 
Use a hashmap to store frequency of each number in the array for efficient retrieval of maximum occurring number.
• Use a hashmap to store the frequency of each number in the array.

• Iterate through the array and update the frequency count in the hashmap.

• Find the number with the highest frequency in the hashmap to get the maximum occurring number.
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Q8. What is Multi-Threading in Java ? What are Generics ?
Ans. 
Multi-Threading in Java allows multiple threads to execute concurrently. Generics in Java enable type-safe collections and classes.
• Multi-Threading in Java allows for concurrent execution of multiple threads.

• Generics in Java enable type-safe collections and classes by allowing the use of parameterized types.

• Example of Multi-Threading: creating a new thread using the Thread class and implementing the run() method.

• Example...read more
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Q1. Questions Based on Resume , Skills and Projects.
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Q2. Why Bentley Systems ?
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Bentley Systems is a global leader in infrastructure engineering software, providing innovative solutions for sustainable development.
• Bentley Systems offers cutting-edge technology and tools for infrastructure engineering projects.

• The company has a strong reputation for innovation and sustainability in the industry.

• Bentley Systems has a global presence, providing opportunities to work on diverse projects around the wor...read more
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Q3. Questions Based on Previous Employment and Internships.
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Q4. How Soon You Can Join Us ?
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I received easy to medium LeetCode questions, which focused on basic math and hash maps.

Q1. Discussion on resume, told me to design database tables and classes for an ordering system.
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Q1. Again discussion on resume projects and current ongoing internship.
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Q1. What you know about the company?
Ans. 
The company is a leading software development firm specializing in creating innovative solutions for various industries.
• Specializes in creating innovative software solutions

• Works with various industries such as healthcare, finance, and technology

• Known for their strong focus on quality and customer satisfaction
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Q2. Tell your interests outside study.
Ans. 
I enjoy playing musical instruments, reading books, and hiking in my free time.
• Playing musical instruments like guitar and piano

• Reading books on various topics such as technology and fiction

• Hiking in nature trails and exploring new places
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It was a 75 mins coding round with array strings and matrix problem were there

Round 2 was another coding round with graph and arrays questions were there

Q1. Introduce yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for software development.
• Recent graduate with a degree in Computer Science

• Passionate about software development

• Experience with programming languages like Java and Python
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Q2. Oops concepts explain with examples
Ans. 
Oops concepts are fundamental principles of object-oriented programming.
• Encapsulation: bundling data and methods that operate on the data into a single unit (class)

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability to present the same interface for different data types

• Abstraction: hiding the complex implementation details and showing only the necessary features
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Q3. Projects explain with role
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There were some basic aptitude questions and OOP questions as MCQs. At the end there was a simple conding question.

Q1. What is pre/post increment/decrement operator?
Ans. 
Pre/post increment/decrement operators are used to increase/decrease the value of a variable by 1.
• Pre-increment operator (++x) increases the value of x by 1 before using it in an expression.

• Post-increment operator (x++) increases the value of x by 1 after using it in an expression.

• Pre-decrement operator (--x) decreases the value of x by 1 before using it in an expression.

• Post-decrement operator (x--) decreases the valu...read more
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Q2. Projects worked on Internships
Ans. 
I have worked on various projects and internships during my time as a software engineer.
• Developed a web application for a retail company to manage inventory and sales.

• Collaborated with a team to create a mobile app for a healthcare startup to track patient vitals.

• Implemented a machine learning algorithm for a research project in the field of natural language processing.

• Optimized database queries and improved performanc...read more
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Q1. Program to find middle of a linked list
Ans. 
Program to find middle of a linked list
• Traverse the linked list using two pointers, one moving twice as fast as the other

• When the faster pointer reaches the end, the slower pointer will be at the middle

• Handle even and odd length linked lists separately
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Q2. Discussion on projects and internships
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Q3. Other simple DSA questions
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Q1. What data structures would you use to save images?
Ans. 
I would use a binary format like JPEG or PNG to save images.
• JPEG and PNG are common binary formats used to save images.

• These formats use compression to reduce file size without losing quality.

• Other options include BMP, GIF, and TIFF, but they may not be as efficient.

• Images can also be saved as arrays of pixels or as vectors, depending on the type of image.

• The choice of data structure depends on the specific use case an
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Q2. Write a function to swap. What exceptions it may throw?
Ans. 
Function to swap two variables and possible exceptions
• Function should take two variables as input

• Use a temporary variable to swap the values

• Possible exceptions include null pointer exception or out of bounds exception
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Q3. System design of a carrom board game
Ans. 
Designing a carrom board game system
• Define game rules and mechanics

• Create game board and pieces

• Implement player turns and scoring system

• Include AI for single player mode

• Consider multiplayer options and networking

• Test and debug thoroughly
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Q1. Describe a time when y ou had to learn a new kill to complete a project
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Q2. Tell me about your resume
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Reverse a given string using for loop

1 hour for 2 coding questions on Codility Platform

Q1. Coding questions on Codility Platform (on-site)
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A good, basic understanding will suffice.

Q1. Questions about OOPs, DBMS. Fundamental understanding will work
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