Tata Digital Interview Questions and Answers

Git pull is used to fetch and merge changes from a remote repository, while pull request is a way to propose changes to a repository.

• Git pull is used to update a local repository with changes from a remote repository.

• Pull request is a way to propose changes to a repository by creating a branch, making changes, and requesting the changes to be merged into the main branch.

• Git pull is a command used in the terminal, while...read more

IPC stands for Inter-Process Communication and RPC stands for Remote Procedure Call.

• IPC is a mechanism that allows communication between processes running on the same or different devices.

• RPC is a protocol that enables one program to request a service from another program on a remote machine.

• IPC can be achieved through shared memory, message passing, and pipes.

• RPC uses a client-server model and can be implemented using...read more

To detect loop in linked list, use Floyd's cycle-finding algorithm.

• Create two pointers, slow and fast, and initialize both to the head of the linked list.

• Move slow pointer by one node and fast pointer by two nodes.

• If there is a loop, the two pointers will eventually meet.

• If there is no loop, the fast pointer will reach the end of the linked list.

• Time complexity: O(n), Space complexity: O(1)

Print prime numbers between 100 to 1,00,000

• Start with a loop from 100 to 100000

• Check if the current number is prime or not

• If prime, print the number

Lag is a delay in a process, while lead is an acceleration or advancement.

• Lag refers to a delay in a process or activity, where there is a gap between the desired outcome and the actual outcome.

• Lead refers to an acceleration or advancement in a process, where the desired outcome is achieved before the actual outcome.

• For example, in project management, lag time is the delay between the completion of one task and the sta...read more

Rank, Dense_Rank, and Row_Number are functions used in SQL to assign a ranking to rows in a result set.

• Rank assigns a unique rank to each row based on the specified column values.

• Dense_Rank assigns a unique rank to each row without any gaps, even if there are ties.

• Row_Number assigns a unique sequential integer to each row in the result set.

• Example: If we have a table of students with their scores, Rank would assign ran...read more

E-commerce platform is a website or application where businesses sell products or services online.

• E-commerce platforms allow businesses to create online stores to showcase and sell their products.

• Customers can browse products, add them to cart, and make payments online through secure payment gateways.

• Popular e-commerce platforms include Shopify, WooCommerce, Magento, and BigCommerce.

I like the convenience, variety of products, and personalized recommendations on e-commerce websites. I dislike slow loading times, hidden fees, and lack of customer service.

• Convenience of shopping from home

• Wide variety of products available

• Personalized recommendations based on browsing history

• Slow loading times can be frustrating for users

• Hidden fees during checkout process can lead to dissatisfaction

• Lack of responsiv...read more

Implemented CRM system for a company, faced challenges with data migration and user adoption.

• Managed data migration from legacy systems to new CRM platform

• Provided training and support to employees to ensure successful adoption

• Addressed technical issues and customized CRM features to meet company's needs