Xoriant Software Engineer Interview Questions and Answers

Developed a web-based project management tool to streamline team collaboration and task tracking.

• Utilized React for the front-end, ensuring a responsive and user-friendly interface.

• Implemented a Node.js backend with Express to handle API requests and manage data.

• Integrated MongoDB for efficient data storage and retrieval, allowing for real-time updates.

• Incorporated user authentication using JWT for secure access t...read more

The optimal solution for generating Fibonacci series efficiently.

• Use dynamic programming to store previously calculated values to avoid redundant calculations.

• Implement a recursive function with memoization to store and reuse calculated values.

• Iterate through the series using a loop to generate Fibonacci numbers efficiently.

A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.

• A prime number has exactly two distinct positive divisors: 1 and itself.

• Examples of prime numbers: 2, 3, 5, 7, 11, 13.

• The number 1 is not prime because it has only one divisor.

• The number 4 is not prime because it can be divided by 1, 2, and 4.

Hashmaps use key-value pairs for efficient data retrieval, leveraging arrays and linked lists for collision resolution.

• Hashmap uses an array to store data, where each index corresponds to a hash value of the key.

• When a key is added, a hash function computes its index in the array.

• Collisions occur when multiple keys hash to the same index; resolved using chaining (linked lists) or open addressing.

• Example: In Java, ...read more

Static service in Angular is used to share data between components and persists data even after the component is destroyed.

• Static service is a singleton service that can be injected into any component.

• It is used to share data between components.

• Data persists even after the component is destroyed.

• It is useful for sharing data between sibling components.

• Example: a shopping cart service that persists the cart data ac...read more

Multi role login system can be managed by assigning different access levels to each role.

• Create a database table for roles and their access levels

• Assign each user a role with corresponding access level

• Implement role-based access control (RBAC) to restrict access to certain features

• Use session management to keep track of user roles

• Provide an admin panel to manage roles and access levels