Cognizant Software Engineer Interview Questions, Process, and Tips

I would say the coding questions are moderate not very easy
The assignment consists of 2 coding questions and 2 SQL queries

Q1. Interview was completely basic questions like a program to print Pascal triangle in any of your preferred language
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Q2. Write a program to print Pascal triangle
Ans. 
Program to print Pascal triangle
• Use nested loops to generate the triangle

• Each row has one more element than the previous row

• The first and last element of each row is always 1

• The middle elements can be calculated using the formula: C(n, k) = C(n-1, k-1) + C(n-1, k)
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Q3. What do you know about cloud computing
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Cloud computing is the delivery of computing services over the internet.
• Cloud computing allows users to access data and applications from anywhere with an internet connection

• It offers scalability, flexibility, and cost-effectiveness

• Examples include Amazon Web Services, Microsoft Azure, and Google Cloud Platform
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Q4. What is best thing about Human do you like the most
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Q5. What are Aggregate Functions in sql
Ans. 
Aggregate functions perform calculations on a set of values and return a single value.
• Examples include SUM, AVG, COUNT, MAX, and MIN.

• They are used with the SELECT statement to summarize data.

• Aggregate functions can be used with GROUP BY clause to group data by one or more columns.

• They can also be used with HAVING clause to filter groups based on a condition.
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Q6. Write a SQL queries to get second most salary from Employee table
Ans. 
SQL query to get second highest salary from Employee table
• Use ORDER BY and LIMIT to get the second highest salary

• Use subquery to exclude the highest salary and get the second highest salary
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Hackerrank 10apptitude mcq, 2 coding question

Q1. Whay do we use object
Ans. 
Objects are used in software engineering to represent real-world entities and encapsulate data and behavior.
• Objects help organize code by grouping related data and functions together

• Objects promote code reusability through inheritance and polymorphism

• Objects allow for easier maintenance and updates by encapsulating data and behavior

• Examples: a Car object with properties like make, model, and methods like start(), stop(...read more
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Q2. Abstraction vs encasulation
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Abstraction focuses on hiding unnecessary details, while encapsulation focuses on bundling data and methods together.
• Abstraction allows us to focus on what an object does, rather than how it does it.

• Encapsulation helps in data hiding and prevents direct access to the internal state of an object.

• Abstraction is achieved through interfaces and abstract classes, while encapsulation is achieved through access modifiers like...read more
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Q1. Would you be flexible to learn Java if you are already having 3year experience in .NET
Ans. 
Yes, I am open to learning Java despite having experience in .NET.
• Learning Java will broaden my skill set and make me more versatile as a software engineer.

• Many concepts in .NET are transferable to Java, making the learning curve less steep.

• Being proficient in multiple languages can open up more job opportunities in the future.
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Q2. What makes you different than others.
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I have a unique combination of technical skills, problem-solving abilities, and a strong work ethic.
• Strong background in computer science and software engineering

• Proven track record of successfully solving complex technical problems

• Excellent communication and teamwork skills

• Consistently meet deadlines and deliver high-quality work

• Passion for learning and staying up-to-date with the latest technologies
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Aptitude reasoning english snippet code

Q1. Virtual now days basic technical questions once go through your resume or cv imp keywords
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Q1. Verification of document
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Q1. Will give u job location area of work discussion
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Q1. TC questions: Types of datatypes? Predefined functions? Difference between list and tree? Who is more preferred? Difference between class and object? Difference between inheritance and polymorphism? Aptit...read more
Ans. 
Interview questions for Software Engineer position
• Datatypes: int, float, string, boolean, etc.

• Predefined functions: print(), len(), range(), etc.

• List is linear while tree is hierarchical. Trees are preferred for faster search and insertion.

• Class is a blueprint while object is an instance of a class.

• Inheritance is a way to create a new class from an existing class while polymorphism is the ability of an object to take o...read more
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Q2. Write a program using recursion
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A program using recursion
• Recursion is a technique where a function calls itself to solve a problem

• It involves a base case and a recursive case

• Examples include factorial, Fibonacci sequence, and binary search
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Q3. Sort the array and write a code for searching array element
Ans. 
Sort and search an array in software engineering interview
• Use built-in sorting functions or implement your own sorting algorithm

• For searching, use linear search or binary search depending on the size of the array

• Consider the time complexity of the sorting and searching algorithms

• Ensure the code is efficient and handles edge cases properly
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Q1. HR QUESTIONS: Can you relocate? Are you ok with shift wise working? Strengths and weaknesses? Biggest achievement?
Ans. 
Yes
• Yes, I am open to relocation for the right opportunity.

• Yes, I am comfortable with shift-wise working.

• Strengths: Strong problem-solving skills, excellent programming abilities, and effective communication skills.

• Weaknesses: Sometimes I can be overly detail-oriented and perfectionistic.

• Biggest achievement: Successfully leading a team to develop and launch a complex software project within a tight deadline.
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