SecureW2 Software Engineer Level 1 Interview Questions and Answers

Q1. Complete oops concepts with examples?
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOP focuses on creating objects that interact with each other to solve problems.

• Key concepts include encapsulation, inheritance, and polymorphism.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Inheritance allows classes to inherit at...read more
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Q2. Virtual function and virtual Destructor?
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Q3. Multithreading with example?
Ans. 
Multithreading is the ability of a CPU to execute multiple threads concurrently, allowing for improved performance and responsiveness.
• Multithreading allows multiple tasks to be executed simultaneously on a single CPU core.

• Each thread has its own program counter, stack, and set of registers.

• Example: A web browser using multithreading to load a webpage while simultaneously downloading images in the background.
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Q1. Oops, concepts with examples?
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Q2. Matrix rotate by 180 degrees?
Ans. 
Rotate a 2D matrix by 180 degrees in place without using extra space.
• Iterate through the matrix and swap elements symmetrically across the center row.

• Use two pointers, one starting from the first row and the other from the last row, to swap elements.

• Repeat the swapping process for each row until the entire matrix is rotated.

• Example: Input matrix = [[1,2,3],[4,5,6],[7,8,9]], Output matrix = [[9,8,7],[6,5,4],[3,2,1]]
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OS, DBMS, CN, C++, Java output questions, Probability, Aptitude, IT infrastructure

Q1. Reverse linked list using recursion
Ans. 
Reverse a linked list using recursion
• Create a recursive function to reverse the linked list

• Pass the head of the linked list to the function

• Base case: if the current node is null, return null

• Recursive case: reverse the rest of the list and point the next node's next to the current node
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Q2. Insertion sort, hashtables, hashing
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Data Structures and Algorithms

Q1. Data structures and Algorithms
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Q1. Data Structures And Algorithms
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Q1. Basic understanding of the resume, resume based question, web based questions
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Q1. Questions from data structures. Brain teasers and puzzles.
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Q1. Mostly on the resume part and the work done provided in experience section of resume.
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Q1. Company overview, team overview and Ctc discussion
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Mainframe support questions about COBOL,JCL,VSAM,gdg

Q1. About Day today Activities of my support activity in my previous company and basic mainframe questions and willingness to work in night shift
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Q1. Talk about your experience
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Q2. Talk about what are you looking for
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Q1. Details about your previous tech experience
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Haker rank coding link

Q1. Not remember its been more than 2 years
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