Lloyds Technology Centre Senior Software Engineer Interview Questions and Answers

Virtual DOM is a lightweight representation of the actual DOM, optimizing updates and rendering in web applications.

• Virtual DOM is a concept used in libraries like React to improve performance.

• It creates a virtual representation of the UI in memory, allowing efficient updates.

• When changes occur, the Virtual DOM is updated first, then compared to the actual DOM.

• This process is called 'reconciliation', where only the nec...read more

Git Merge combines branches, preserving history; Git Rebase rewrites history for a cleaner, linear project history.

• Merge creates a new commit that combines changes from two branches.

• Rebase moves or combines a sequence of commits to a new base commit.

• Merge preserves the original context of the branches, showing the true history.

• Rebase creates a linear history, making it easier to follow the project timeline.

• Example of M...read more

I tackled challenges by analyzing problems, collaborating with teams, and implementing effective solutions to drive project success.

• Identified bottlenecks in a project timeline and proposed a revised schedule that improved delivery by 20%.

• Faced a critical bug in production; led a team to conduct a root cause analysis and implemented a fix within 24 hours.

• Collaborated with cross-functional teams to gather requirements, ...read more

Middleware is software that acts as a bridge between different applications or components, allowing them to communicate and work together.

• Middleware facilitates communication between different software components

• It can handle tasks such as data transformation, security, and routing

• Examples include message brokers like RabbitMQ, API gateways like Kong, and web servers like Nginx

I/O streams are channels through which data can be transferred between a program and an external source or destination.

• I/O streams can be used for reading input from a keyboard or file

• I/O streams can be used for writing output to a screen or file

• I/O streams can be used for network communication

A callback is a function that is passed as an argument to another function and is executed after a specific event occurs.

• Used in asynchronous programming to handle responses or events

• Allows for more flexible and modular code

• Commonly used in JavaScript for event handling

Fibonacci code generates a series of numbers where each number is the sum of the two preceding ones.

• Start with two initial numbers, usually 0 and 1

• Iterate through a loop to calculate the next number by adding the previous two numbers

• Repeat until desired number of Fibonacci numbers are generated

I collaborate with others by actively listening, sharing ideas, providing feedback, and working together towards common goals.

• Actively listen to others' ideas and perspectives

• Share my own ideas and contribute to discussions

• Provide constructive feedback to help improve team projects

• Work together towards common goals and objectives