WNS Software Engineer Interview Questions and Answers

First time attend aptitude test .

Q1. Any computer engineering basic questions
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Q2. C,C++,java , python
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Q3. What is inheritance.how many times of inheritance.
Ans. 
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Inheritance allows for code reusability and promotes the concept of 'is-a' relationship.

• There are different types of inheritance such as single inheritance, multiple inheritance, multilevel inheritance, and hierarchical inheritance.

• Example: Class B inheriting from Class A - 'class B: public A {}'
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Q4. How many characters are used in C.
Ans. 
C uses a set of 128 characters, including letters, digits, special characters, and control characters.
• C uses 26 letters (uppercase and lowercase), 10 digits (0-9), and various special characters like !, @, #, $, %, etc.

• C also includes control characters like newline, tab, carriage return, etc.

• The total number of characters used in C is 128.
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Q5. What is c. How many characters are used.
Ans. 
C is a programming language known for its efficiency and flexibility. It uses 256 characters.
• C is a high-level programming language used for system programming, embedded systems, and applications.

• C uses 256 characters, including letters, digits, special characters, and whitespace.

• Examples of characters in C include 'a', '1', '+', and ' '.
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Time distance and work

Array, String, Stack, Queues, BFS

Q1. Tell me about yourself
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Q2. I am aryaman m singha hailed from assam guwahati
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