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HSBC Group Software Developer Interview Questions and Answers
18 Interview questions
The Two Sum problem involves finding two numbers in an array that add up to a specific target sum.
Use a hash map to store numbers and their indices for quick lookup.
Iterate through the array, checking if the complement (target - current number) exists in the hash map.
Example: For nums = [2, 7, 11, 15] and target = 9, return indices [0, 1] since 2 + 7 = 9.
Time complexity is O(n) due to a single pass through the arr...
DBMS stands for Database Management System, while RDBMS stands for Relational Database Management System. RDBMS is a type of DBMS.
DBMS is a software system that allows users to define, create, maintain and control access to the database.
RDBMS is a type of DBMS that stores data in a structured format using tables with rows and columns.
RDBMS enforces a set of rules called ACID properties to ensure data integrity, wh...
Encapsulation, Inheritance, Polymorphism, Abstraction
Encapsulation: Bundling data and methods that operate on the data into a single unit
Inheritance: Ability of a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Abstraction: Hiding the complex implementation details and showing only the necessary features
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.
Example: Inheritance allows a class to inherit properties and methods from another class.
Example: Encapsulation hi...
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Different types of joins in DBMS include inner join, outer join, left join, right join, and full join.
Inner join: Returns rows when there is a match in both tables.
Outer join: Returns all rows from one table and only matching rows from the other table.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from...
Stacks are Last In First Out (LIFO) data structures, while Queues are First In First Out (FIFO) data structures.
Stacks: Elements are added and removed from the same end, like a stack of plates. Example: Undo feature in text editors.
Queues: Elements are added at the rear and removed from the front, like a line of people waiting. Example: Print queue in a printer.
Code implementing all 4 pillars of OOPs
Encapsulation: Encapsulate data within classes and provide public methods to access and modify the data.
Inheritance: Create a hierarchy of classes where child classes inherit attributes and methods from parent classes.
Polymorphism: Allow objects of different classes to be treated as objects of a common superclass through method overriding and overloading.
Abstraction: Hide com...
C is a procedural programming language while C++ is an object-oriented programming language.
C is a procedural programming language, while C++ supports both procedural and object-oriented programming.
C does not have classes and objects, while C++ does.
C does not support function overloading, while C++ does.
C does not have exception handling, while C++ does.
C does not have namespaces, while C++ does.
Code to find the 2nd largest element in an array
Sort the array in descending order and return the element at index 1
Iterate through the array and keep track of the two largest elements
Handle edge cases like arrays with less than 2 elements
Merge sort is a divide and conquer algorithm that divides the input array into two halves, sorts them recursively, and then merges them.
Divide the input array into two halves
Recursively sort each half
Merge the sorted halves back together
HSBC Group Software Developer Interview Experiences
10 interviews found
Anonymous
MCQ test consisting of 70 mcqs in 75 minutes from aptitude english and cs fundamentals. If cleared next paper 2 coding qs medium level
(2 Questions)
- Q1. Two sum leetcode problem
- Ans.
The Two Sum problem involves finding two numbers in an array that add up to a specific target sum.
Use a hash map to store numbers and their indices for quick lookup.
Iterate through the array, checking if the complement (target - current number) exists in the hash map.
Example: For nums = [2, 7, 11, 15] and target = 9, return indices [0, 1] since 2 + 7 = 9.
Time complexity is O(n) due to a single pass through the array.
- Q2. What problems you faced in your project
- Ans.
I faced challenges with integrating third-party APIs and debugging complex logic.
Difficulty in understanding and implementing third-party APIs
Issues with data synchronization between different systems
Troubleshooting complex logic errors
Managing dependencies and version conflicts
Time constraints affecting problem-solving
(2 Questions)
- Q1. SOLID Principle
- Q2. Throw vs throw ex
- Ans.
throw vs throw ex is used in exception handling in C#
throw is used to rethrow the current exception without losing the original stack trace
throw ex is used to throw a new exception while preserving the original exception information
It is recommended to use throw without specifying ex to avoid losing important exception details
Skills evaluated in this interview
Shubhangi Bhattacharya
I applied via Campus Placement
East to medium level test covering basic aptitude topics and logical reasoning / pattern questions on AON
2 easy to medium level questions that can be solved in either python / cpp/ java
(1 Question)
- Q1. Technical interview was of 30 min. Complete focus is given to resume. But interview depends on interviewer. there were 18 panelists. Some were asked questions as easy as Prime no code. But I was asked to w...
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Jan 2023. There were 4 interview rounds.
It was just a typical logical reasoning and aptitude MCQ test
There were 2 coding questions and you can select any language for solving it. The test was online
(13 Questions)
- Q1. He simply asked me which coding language I prefer and why ? (Mine was C++)
- Ans.
I prefer C++ for its performance, flexibility, and extensive libraries, making it ideal for system-level programming and game development.
Performance: C++ offers low-level memory manipulation, which is crucial for high-performance applications like game engines.
Object-Oriented: C++ supports OOP principles, allowing for better organization and modularity in code, as seen in large software projects.
Standard Template Libr...
- Q2. Difference between C and C++?
- Ans.
C is a procedural programming language while C++ is an object-oriented programming language.
C is a procedural programming language, while C++ supports both procedural and object-oriented programming.
C does not have classes and objects, while C++ does.
C does not support function overloading, while C++ does.
C does not have exception handling, while C++ does.
C does not have namespaces, while C++ does.
- Q3. What is Object oriented programming?
- Ans.
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
Objects are instances of classes, which define the structure and behavior of the objects.
Encapsulation, inheritance, and polymorphism are key principles of object oriented programming.
Example: Inheritance allows a class to inherit properties and methods from another class.
Example: Encapsulation hides t...
- Q4. What are the 4 pillars of OOPs?
- Ans.
Encapsulation, Inheritance, Polymorphism, Abstraction
Encapsulation: Bundling data and methods that operate on the data into a single unit
Inheritance: Ability of a class to inherit properties and behavior from another class
Polymorphism: Ability to present the same interface for different data types
Abstraction: Hiding the complex implementation details and showing only the necessary features
- Q5. Write down code implementing all 4 pillars of OOPs.
- Ans.
Code implementing all 4 pillars of OOPs
Encapsulation: Encapsulate data within classes and provide public methods to access and modify the data.
Inheritance: Create a hierarchy of classes where child classes inherit attributes and methods from parent classes.
Polymorphism: Allow objects of different classes to be treated as objects of a common superclass through method overriding and overloading.
Abstraction: Hide complex ...
- Q6. Difference between Stacks and Queues?
- Ans.
Stacks are Last In First Out (LIFO) data structures, while Queues are First In First Out (FIFO) data structures.
Stacks: Elements are added and removed from the same end, like a stack of plates. Example: Undo feature in text editors.
Queues: Elements are added at the rear and removed from the front, like a line of people waiting. Example: Print queue in a printer.
- Q7. Write a code to find the 2nd largest element in an array.
- Ans.
Code to find the 2nd largest element in an array
Sort the array in descending order and return the element at index 1
Iterate through the array and keep track of the two largest elements
Handle edge cases like arrays with less than 2 elements
- Q8. What is merge sort and its Algorithm ?
- Ans.
Merge sort is a divide and conquer algorithm that divides the input array into two halves, sorts them recursively, and then merges them.
Divide the input array into two halves
Recursively sort each half
Merge the sorted halves back together
- Q9. What is DBMS and RDBMS and difference between them?
- Ans.
DBMS stands for Database Management System, while RDBMS stands for Relational Database Management System. RDBMS is a type of DBMS.
DBMS is a software system that allows users to define, create, maintain and control access to the database.
RDBMS is a type of DBMS that stores data in a structured format using tables with rows and columns.
RDBMS enforces a set of rules called ACID properties to ensure data integrity, while D...
- Q10. What is SQL and who its different from mySQL?
- Ans.
SQL is a standard language for managing databases, while MySQL is a specific open-source relational database management system.
SQL stands for Structured Query Language and is used to communicate with databases.
SQL is a standard language that can be used with various database management systems.
MySQL is a specific open-source relational database management system that uses SQL.
MySQL is one of the most popular database m...
- Q11. Difference between Delete, Truncate and Drop?
- Ans.
Delete removes specific rows from a table, Truncate removes all rows from a table, and Drop removes the table itself.
Delete is a DML command that removes specific rows from a table based on a condition.
Truncate is a DDL command that removes all rows from a table but keeps the table structure.
Drop is a DDL command that removes the entire table along with its structure.
- Q12. Different kind of Joins in DBMS ?
- Ans.
Different types of joins in DBMS include inner join, outer join, left join, right join, and full join.
Inner join: Returns rows when there is a match in both tables.
Outer join: Returns all rows from one table and only matching rows from the other table.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from the ...
- Q13. And at last 2 to 3 SQL queries. They were not that hard, Just basic queries.
Interview Preparation Tips
If you don't know the answer of a coding question (NOTE: not a theoretical question) try for sometime to come up with the solution and while thinking keep saying your approach out loud to the interview and if after taking 1 to 2 mins you still don't know just say, Sorry I can't recall it right now but I will definitely get to it after the interview. Don't use this approach for theoretical questions, Either you have an answer to that or not.
Never Beat around the bush, be specific and to the point.
And at last, I just wanna say that passing an interview needs 40% skill, 20% communication, 20% confidence, 10% mood of the interview and 10% is luck.
Why I am saying mood of the interview and luck????
In my case, I was not selected for the final HR round. First of all, in all 137 students selected for the technical interview, my name was at 111 and randomly they called the first student for the interview and it was me. So that's luck.
OK after I entered my interviewer cabin, I saw a look of aggression on my interviewers face. We didn't smiled once during my 50min interview. He didn't even asked me to introduce myself.
He asked me 15 questions in total and I correctly answers 10 of them to the point and for the rest 5 I explained my approach to them.
Still I got rejected, and one of my friend who was answered like 2 questions out of 10 got selected because his interviewer was different. (NOTE: I am really happy for my friend, He is like my best buddy and my only well wisher that I know about).
So yeah just prepare well and be confident and even if things go south and you gave your best, just think that today was not your day and just move on.
Skills evaluated in this interview
Deepesh Gupta
I applied via Campus Placement
Basic Aptitude and Technical Question
2 coding Questions asked from array and strings
(2 Questions)
- Q1. Projects were asked
- Q2. Resume should be prepared well
(1 Question)
- Q1. Basic HR questions were asked
Related to the DSA and concepts of OS and CN
(1 Question)
- Q1. Palindrome question
I applied via Campus Placement and was interviewed in Sep 2022. There were 4 interview rounds.
The basic aptitude questions were asked along with technical mcqs
If you clear the 1st round then one coding challenge will be opened the level of question will be moderate it would be on Cocubes
(2 Questions)
- Q1. Just follow your instincts and go for it. The duration of it will be 30mins and the platform is SHL
- Q2. Then offline interview at some place which they will decide. Basic intro and then questions on your projects OOPs concepts SQL basic queries
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Apr 2022. There were 4 interview rounds.
It was great and easy. Basic Logical aptitude questions.
Two problem statement are provided which you have to solve
(2 Questions)
- Q1. Programming questions were asked to me
- Q2. Database questions were asked to me
Interview Preparation Tips
Work on database
Work on communication
I applied via LinkedIn and was interviewed before Mar 2023. There were 2 interview rounds.
Basic DSA questions on arrays
(1 Question)
- Q1. 2 questions on dynamic programming and trees
I appeared for an interview before May 2021.
(1 Question)
Round duration - 90 minutes
Round difficulty - Medium
It was an online assessment with coding and aptitude questions.
- Q1.
Contains Duplicate Problem Statement
Given an array of integers
ARRand an integerK, determine if there exist two distinct indicesiandjsuch thatARR[i] == ARR[j]and| i - j | <= K.Input:
The f... - Ans.
Given an array of integers and an integer K, determine if there exist two distinct indices i and j such that ARR[i] == ARR[j] and | i - j | <= K.
Iterate through the array and keep track of the indices of each element using a hashmap.
Check if the current element already exists in the hashmap within a distance of K.
Return 'Yes' if a pair of such indices exists, otherwise return 'No'.
(1 Question)
Round duration - 15 minutes
Round difficulty - Easy
HSBC Value-Based Assessment
- Q1. How would you handle a certain situation in your office?
(5 Questions)
Round duration - 30 minutes
Round difficulty - Easy
Technical Round on DS, DBMS, OS, Algorithms, Projects on Resume
- Q1. Which data structures are used for implementing an LRU cache?
- Ans.
The data structures used for implementing an LRU cache are doubly linked list and hash map.
Doubly linked list is used to maintain the order of recently used elements.
Hash map is used for fast lookups to check if an element is present in the cache or not.
When a new element is accessed, it is moved to the front of the linked list to indicate it as the most recently used.
- Q2. How is a stack different from a queue?
- Ans.
A stack follows Last In First Out (LIFO) order while a queue follows First In First Out (FIFO) order.
Stack: elements are added and removed from the top (like a stack of plates)
Queue: elements are added at the rear and removed from the front (like a line of people)
Stack: push() and pop() operations
Queue: enqueue() and dequeue() operations
Example: Undo functionality in text editors (stack) vs. printer queue (queue)
- Q3. What do you understand by functional dependency and transitive dependency in DBMS?
- Ans.
Functional dependency is a relationship between attributes in a database table, while transitive dependency occurs when an attribute is functionally dependent on another attribute.
Functional dependency: A determines B, where the value of A uniquely determines the value of B.
Transitive dependency: A determines B, and B determines C, therefore A indirectly determines C.
Example of functional dependency: Employee ID determ...
- Q4. What is normalization and what are the different types of normalization?
- Ans.
Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization is used to eliminate data redundancy and ensure data integrity.
There are different normal forms such as 1NF, 2NF, 3NF, BCNF, and 4NF.
Each normal form has specific rules to follow in order to achieve it.
For example, 1NF ensures that each column contains atomic values, 2NF eliminates partial depende...
- Q5. What is a bootstrap program in an operating system?
- Ans.
A bootstrap program is a small program that initializes the operating system during the boot process.
Bootstrap program is the first code that runs when a computer is turned on.
It loads the operating system kernel into memory and starts its execution.
It performs hardware checks, sets up memory, and initializes system components.
Examples include GRUB for Linux and NTLDR for Windows.
Round duration - 20 minutes
Round difficulty - Easy
This was a basic HR round with some standard behavioural questions
Interview Preparation Tips
Tip 1 : Be sincere and regular
Tip 2 : Practice different types of questions and keep revising
Tip 3 : Make documentation of topics you study and new things/topics/approaches you learn
Tip 1 : Have Projects on Resume
Tip 2 : Be honest in your resume
Tip 3 : Be smart with your resume
Skills evaluated in this interview
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