Wells Fargo Interview Questions and Answers

I have a good understanding of the existing project.

• I have thoroughly reviewed the project documentation and codebase.

• I have spoken with team members to gain additional insights.

• I have tested the project to identify any issues or areas for improvement.

• I have identified potential risks and have proposed solutions to mitigate them.

Yes, session handling is important in Selenium for maintaining user state and avoiding errors.

• Session handling helps maintain user state between requests

• It prevents errors caused by multiple users sharing the same session

• It allows for efficient use of server resources

• Examples include using cookies or URL rewriting to maintain session state

Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications.

• Kubernetes is used to manage containerized applications across a cluster of nodes.

• Components of Kubernetes include Pods, Nodes, Services, and Deployments.

• Services in Kubernetes provide a way to expose an application running on a set of Pods as a network service.

• Kubernetes architecture consists of a master node that controls the clu...read more

Nitor Infotech is a company that provides IT solutions and services.

• Nitor Infotech works by offering a range of IT solutions and services to clients.

• They have a team of skilled professionals who develop and implement these solutions.

• They follow a systematic approach to understand client requirements, design solutions, and deliver them.

• Nitor Infotech has expertise in various domains such as healthcare, finance, retail, etc.

• They use cutting-edge technologies and tools to develo...read more

Loading data incrementally involves updating only new or changed data instead of reloading entire dataset.

• Identify the key field that determines new or updated records

• Use timestamp or versioning to track changes

• Implement a process to extract, transform, and load only new or updated data

• Consider using tools like Change Data Capture (CDC) or Incremental Load in ETL processes

SCD types refer to slowly changing dimensions in data warehousing, categorized into Type 1, Type 2, and Type 3.

• Type 1: Overwrite existing data with new data, losing historical information.

• Type 2: Create a new record for each change, preserving historical data with a new surrogate key.

• Type 3: Maintain both old and new values in separate columns within the same record.

SOLID principles are a set of five design principles in object-oriented programming to make software designs more understandable, flexible, and maintainable.

• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the func...read more

Custom 2 pointers question for Junior Engineer interview.

• Explain the concept of 2 pointers technique in array manipulation.

• Discuss how 2 pointers can be used to solve problems like finding a pair with a given sum in an array.

• Provide examples of using 2 pointers to solve problems efficiently.