DXC Technology Junior Software Engineer Interview Questions and Answers

Q1. Angular basic to advance.
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Q2. Js code remove the duplicate from array.
Ans. 
Use Set to remove duplicates from array of strings in JavaScript.
• Create a Set from the array to automatically remove duplicates.

• Convert the Set back to an array to get the unique values.

• Example: const array = ['apple', 'banana', 'apple']; const uniqueArray = [...new Set(array)];
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Excel,cyber security

Q1. What is bubble sort
Ans. 
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
• Compares adjacent elements and swaps them if they are in the wrong order

• Repeats this process until the list is sorted

• Not efficient for large datasets, has a time complexity of O(n^2)
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Q2. Explain palindrome
Ans. 
A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward as forward.
• Palindrome is a word, phrase, number, or sequence that reads the same forwards and backwards.

• Examples: 'radar', 'madam', '1221', 'A man, a plan, a canal, Panama.'
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Q3. Write merge sort
Ans. 
Merge sort is a divide and conquer algorithm that recursively divides the array into two halves, sorts them, and then merges them back together.
• Divide the array into two halves

• Recursively sort each half

• Merge the sorted halves back together
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Q1. Favourite subject
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My favourite subject is computer science because I enjoy problem-solving and creating innovative solutions.
• I love learning about algorithms and data structures

• I enjoy programming languages like Java and Python

• I find software development methodologies like Agile fascinating
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Q1. Imparent my skills in education knowledge
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The aptitude test was quite easy.

Questions are moderated.

Q1. Introduce your self.
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Q2. The interviewer asked me about java, oops concepts and some questions from data structures and some numerical in last.
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Q1. The interview was only 15 min. He asked questions related to database. He was very friendly.
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Q2. What is trigger
Ans. 
A trigger is a piece of code that automatically executes in response to a specific event or condition in a software system.
• Triggers are commonly used in databases to enforce business rules or perform actions when certain data changes occur.

• They can be used to validate data, update related records, or perform calculations.

• For example, a trigger can be created to automatically update a customer's loyalty points when they...read more
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Q1. Does platform independent in JAVA?
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Yes, Java is platform independent due to its ability to compile code into bytecode that can run on any platform with a Java Virtual Machine (JVM).
• Java code is compiled into bytecode, which can run on any platform with a JVM.

• The JVM acts as an intermediary between the Java code and the underlying platform.

• This allows Java programs to be written once and run on any platform without modification.
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Q2. Do you Know about OOPS?
Ans. 
OOPS stands for Object-Oriented Programming System. It is a programming paradigm based on the concept of objects.
• OOPS focuses on creating objects that contain both data and methods to manipulate that data.

• Encapsulation, inheritance, and polymorphism are key principles of OOPS.

• Examples of OOPS languages include Java, C++, and Python.
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General knowledge questions