DH Healthcare Software Services India Private Limited (Dedalus) Software Engineer Interview Questions and Answers

Q1. Binary search Merg sorting algorithm Minimum n maximum number in an array list Core java question Oops tricky code snippets Architecture questions about restful and Microservices
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Q2. Deep copy and shallow copy Interviewer test your problem solving attitude and response not the perfect output
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Q3. Array in descending order code
Ans. 
Sort an array of strings in descending order
• Use the sort() method with a custom compare function to sort the array in descending order

• Example: ['apple', 'banana', 'cherry'].sort((a, b) => b.localeCompare(a)) will result in ['cherry', 'banana', 'apple']
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Q4. Comparator and comparable interface
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C programming

2 coding questions and 10 mcqs

Q1. Sorting algorithms and oops concept in details.
Ans. 
Sorting algorithms and OOPs concepts
• Sorting algorithms are used to arrange data in a specific order.

• OOPs concepts provide a way to structure and organize code using classes and objects.

• Examples of sorting algorithms include bubble sort, insertion sort, and quicksort.

• OOPs concepts include encapsulation, inheritance, and polymorphism.
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Q1. Introduction and why you want to join the organization.
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Aptitude test is based on English test, Quantative, Logical reasoning

Pseudo codes with your preferred language

Q1. Situation based coding question asked
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Q1. First Technical Interview: All the C# basic and OOP's questions with written examples 1. Boxing and unboxing 2. Abstraction 3. Polymorphism 4. Delegate 5. Generic 6. Interface Logical question 1. Memory ...read more
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Q2. Second Technical Interview: C# based interview: 1. Ask to make reverse pyramid design pattern. 2. Factorial 3. A lot of questions on Interface with example of my current project. Why we use interface, and ...read more
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Q1. Aws full project flow chart
Ans. 
An AWS full project flow chart outlines the entire process of a project using AWS services.
• Start with defining project requirements and goals

• Design architecture using AWS services like EC2, S3, RDS, etc.

• Implement the design by setting up resources and configuring services

• Test the project to ensure functionality and performance

• Deploy the project on AWS cloud

• Monitor and maintain the project for optimal performance
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Q2. Simple dsa question
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2 coding questions ( 1 easy , 1 medium) along with some mcqs on Hackerearth.
The test was for c++.

Q1. The technical round was of 1 hour. He asked OOPS concepts and 4 coding questions.(3 easy, 1 medium)
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Q2. Core OOPS concepts. Polymorphism and it's types Constructors , copy constructors, etc.. along with implementations. Deadlocks and how to prevent it. 1. Given n-1 positive numbers all from 1 to n, find t...read more
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Q1. Went through the resume and asked questions related to it. Since I mentioned DSA, he asked one question related to BST. Rest were just conversation.
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Q1. Just talked over phone about salary negotiations.
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Q1. What is the iterator, generator in python. Write an example of it. What is .pyc file, when is it generate, generate and show it.
Ans. 
Iterator and generator are used in Python to iterate over a sequence of elements. .pyc files are compiled Python files.
• Iterator in Python is an object that enables a programmer to traverse a container, like a list.

• Generator in Python is a function that returns an iterator. It generates values using the yield keyword.

• Example of iterator: for num in range(5): print(num)

• Example of generator: def square_numbers(n): for i i...read more
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Q2. Coding Questions: 1) Reversing a number eg:1234 to 4321 2) Perform sorting in list using any sort algorithm 3) list1, list2 - both are mapped to each other, based on the traget value in list1, return th...read more
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Q3. Technical questions : OS module, .pyc file, git commands,
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Q4. What is bug life cycle? which project management methodolgy are you following in your current project.
Ans. 
Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing bugs in a software project.
• Bug is identified by a tester during testing phase

• Bug is reported to the development team

• Development team fixes the bug

• Tester retests the bug to ensure it is fixed

• Bug is closed once confirmed fixed
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Q5. Questions on OOPS . What is polymorphism, write an example for that . Why do we use OOP's
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