BT Group Ssrs Developer Interview Questions and Answers

It was an online assessment containing 3 DSA questions

Q1. Medium level array questions
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Q2. Medium level DP questions
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Q1. General behavioural question about
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2 questions ...........................................................................................

Q1. Dbms related and computer subjects
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Q2. Oops related and one coding
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Q1. This was hr and technical both
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DP graphs strings it was good

Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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Q1. What is method overloading and overriding
Ans. 
Method overloading is when multiple methods have the same name but different parameters. Method overriding is when a subclass provides a specific implementation of a method that is already provided by its superclass.
• Method overloading allows a class to have multiple methods with the same name but different parameters.

• Method overriding occurs in a subclass when a method has the same name, return type, and parameters as ...read more
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Q2. Program to swap two variables without using third
Ans. 
Swapping two variables without using a third variable
• Use XOR operation to swap two variables without using a third variable

• Example: a = 5, b = 10; a = a ^ b; b = a ^ b; a = a ^ b; // Now a = 10, b = 5
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Q1. Why you want to join this organization
Ans. 
I am impressed by the organization's innovative projects and collaborative work culture.
• Impressed by innovative projects

• Attracted to collaborative work culture

• Excited about potential for growth and learning opportunities
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Q2. What is your weakness and strength
Ans. 
My weakness is overthinking and my strength is attention to detail.
• Weakness: tend to overthink situations, which can lead to indecision or unnecessary stress

• Strength: strong attention to detail, ensuring accuracy and quality in my work

• Example: I sometimes spend too much time analyzing a problem before taking action, but I have learned to set deadlines for myself to prevent this from affecting my productivity
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Q1. Oops concept related work
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Q2. Technology used in prj
Ans. 
Various technologies used in the project include Java, Spring Boot, Angular, MySQL, and Docker.
• Java

• Spring Boot

• Angular

• MySQL

• Docker
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Questions from Resume, solving code snippets, DSA Algo

Q1. Explain GCD, Core Data, Higher Order Functions, ARC
Ans. 
GCD, Core Data, Higher Order Functions, ARC are key concepts in iOS development.
• GCD (Grand Central Dispatch) is a technology for managing concurrent operations.

• Core Data is a framework for managing the model layer objects in an application.

• Higher Order Functions are functions that operate on other functions, taking them as arguments or returning them.

• ARC (Automatic Reference Counting) is a memory management technology
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Q2. Weak Unowned, iOS App States
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Java and Data Strcuture

Q1. Matrix to find the nearest word
Ans. 
Find the nearest word in a matrix of strings
• Create a matrix of strings

• Calculate the distance between the input word and each word in the matrix

• Return the word in the matrix with the smallest distance to the input word
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Q2. Finding smallest subset in string
Ans. 
Find the smallest subset of strings in an array
• Iterate through the array and compare the length of each string to find the smallest subset

• Use a variable to keep track of the smallest subset found so far

• Return the smallest subset at the end
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Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. What was malloc
Ans. 
malloc is a function in C programming used to dynamically allocate memory during runtime.
• malloc stands for 'memory allocation'.

• It is used to allocate a specific amount of memory during program execution.

• The allocated memory is not automatically initialized and must be explicitly freed using the free() function to avoid memory leaks.
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