IBM Staff Software Engineer Interview Questions and Answers

Q1. Springboot -all questions relevant to springboot were asked
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1 hr test with mcq and coding snippet

Q1. What are pointers in c?
Ans. 
Pointers are variables that store memory addresses of other variables in C programming language.
• Pointers are used to manipulate data structures like arrays, linked lists, and trees.

• They can be used to pass values by reference to functions.

• Pointers can also be used to allocate memory dynamically using functions like malloc() and calloc().
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Q2. Write a linked list program.
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A linked list program is a data structure that stores a sequence of elements with pointers to the next element.
• Create a Node class with a value and a next pointer

• Create a LinkedList class with a head pointer and methods to add, remove, and traverse nodes

• Example: LinkedList ll = new LinkedList(); ll.add(5); ll.add(10); ll.remove(5);
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Q3. Applications of data structures
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Data structures are used to organize and manipulate data efficiently in various applications.
• Data structures are used in databases to store and retrieve data quickly.

• In computer graphics, data structures are used to represent geometric objects.

• Data structures are used in algorithms such as sorting and searching.

• In networking, data structures are used to represent network packets and routing tables.

• Data structures are u...read more
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Q4. Algorithm for merge sort
Ans. 
Merge sort is a divide and conquer algorithm that recursively divides the input array into two halves, sorts them and then merges them.
• Divide the array into two halves

• Recursively sort the two halves

• Merge the sorted halves

• Repeat until the entire array is sorted
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Q5. Cloud computing application in real world in project
Ans. 
Cloud computing is widely used in various industries for data storage, processing, and analysis.
• Cloud computing allows for easy scalability and cost-effectiveness in managing large amounts of data.

• Real-time collaboration and access to data from anywhere are some of the benefits of cloud computing.

• Examples of cloud computing applications in real-world projects include Amazon Web Services (AWS), Microsoft Azure, and Goog...read more
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Q6. Java and nodejs questions
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Merit and demerit of Machine learning ?

General Aptitude and reasoning

Q1. Oops concept, DBMS , Data Structure
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Q2. What is Normalisation?
Ans. 
Normalisation is the process of organizing data in a database to reduce redundancy and improve data integrity.
• It involves dividing larger tables into smaller ones and defining relationships between them.

• Normalization helps to eliminate data inconsistencies and anomalies.

• There are different levels of normalization, such as first normal form (1NF), second normal form (2NF), and so on.

• Normalization can improve database pe...read more
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Q3. What is polimorphism?
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Polymorphism is the ability of an object to take on many forms.
• It allows objects of different classes to be treated as if they were objects of the same class.

• It is achieved through method overriding and method overloading.

• Example: A shape class can have multiple subclasses like circle, square, etc. and all can be treated as shapes.

• Example: A method can take an object of a parent class as a parameter and it can accept a
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Q4. What is Stack and Pre and post Tree formation
Ans. 
Stack is a data structure that follows LIFO. Pre and post tree formation are methods of traversing a tree.
• Stack is used for backtracking, undoing, and recursion.

• Pre-order traversal visits the root node first, then left subtree, then right subtree.

• Post-order traversal visits the left subtree, then right subtree, then root node.
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Q1. Tell me about yourself
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Q2. Tell me About company ?
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Q1. Diff between HANA and ECC
Ans. 
HANA is an in-memory database platform while ECC is a traditional ERP system.
• HANA is designed to handle large amounts of data in real-time while ECC is not optimized for real-time processing.

• HANA uses column-based storage while ECC uses row-based storage.

• HANA has a simpler data model and can handle unstructured data while ECC has a more complex data model.

• HANA is a newer technology while ECC has been around for decades...read more
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Q2. Must know the details of FM's used in devlops
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Java, micro service, spring boot

Q1. Micro service basics
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Q2. Simple Java programming
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Q3. Basic questions of SQL queries
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Q4. Questions from project related
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Q1. SQL and COGNOS related questions were asked.
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Q1. SQL and cognos Related questions were asked.
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Q1. What is the expected CTC and few questions related to notice period and pay details.
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Q1. Hii mam/sir gud evng my name is sony am from peddaplli distc my qualification is mba
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Q2. Hiii sir or mam gud evng my name is sony am from peddaplli distc my qualification is MBA am a fresher and I have no any work experience in any company my strength is adapt quickly to any environment
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Q3. My short term goals is to get placed in a reputed company like yours wich will allow me to enhance my skills and knowledge
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Q4. My long term goal would be to reach a higher position in our company
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