HDFC Bank System Analyst Interview Questions and Answers

Data structure refers to organizing and storing data in a computer so that it can be accessed and used efficiently.

• Common data structures include arrays, linked lists, stacks, queues, trees, and graphs.

• Algorithms are step-by-step procedures for solving a problem, often using data structures.

• Examples of algorithms include sorting algorithms (e.g. bubble sort, quicksort), search algorithms (e.g. binary search), and graph traversal algorithms (e.g. depth-first search, breadth-fi...read more

Use the built-in reverse() method to reverse the string.

• Convert the string to an array using split()

• Use the reverse() method to reverse the array

• Join the reversed array back into a string using join()

Gross salary is the total salary before any deductions, while net salary is the amount received after deductions.

• Gross salary includes all earnings such as basic salary, bonuses, and allowances.

• Net salary is calculated by deducting taxes, social security contributions, and other deductions from the gross salary.

• The formula for calculating net salary is: Net Salary = Gross Salary - (Tax + Social Security Contributions + Other Deductions)

• For example, if an employee's gross sala...read more

RDBMS is a relational database management system while NoSQL is a non-relational database management system.

• RDBMS stores data in tables with predefined schema

• NoSQL stores data in documents, key-value pairs, or graphs

• RDBMS is good for structured data with complex relationships

• NoSQL is good for unstructured or semi-structured data

• Examples of RDBMS: MySQL, Oracle, SQL Server

• Examples of NoSQL: MongoDB, Cassandra, Redis

HDFC stands for Housing Development Finance Corporation.

• HDFC is a leading financial institution in India.

• It provides a wide range of banking and financial services.

• HDFC offers services like home loans, personal loans, insurance, and investment banking.

• It was established in 1977 and is headquartered in Mumbai, India.

Different types of backup include full, incremental, differential, and snapshot.

• Full backup: copies all data

• Incremental backup: copies only changes since last backup

• Differential backup: copies changes since last full backup

• Snapshot backup: captures a point-in-time image of data

• Examples: Windows Backup, Time Machine, Veeam Backup