Commonwealth Bank of Australia, India Senior Software Engineer Interview Questions, Process, and Tips

Address concerns raised in company reviews regarding waste of time.

• Acknowledge the concerns raised in the reviews and show understanding of the issue

• Provide examples of how you have optimized processes or improved efficiency in previous roles

• Discuss the importance of time management and prioritization in software development

• Highlight any experience with agile methodologies or other strategies for reducing waste

Finally is a block of code that always executes, while Finalize is a method used for cleanup before an object is garbage collected.

• Finally block is used in exception handling to ensure certain code is always executed, regardless of whether an exception is thrown or not.

• Finalize method is called by the garbage collector before an object is reclaimed.

• Finally block is used in try-catch-finally blocks, while Finalize metho...read more

Find the second largest string from a given sentence

• Split the sentence into an array of strings

• Sort the array based on string length

• Return the second last element in the sorted array

AWS CloudFront is a content delivery network (CDN) service, while AWS CloudFormation is an infrastructure as code service.

• CloudFront is used to deliver content to end users with low latency and high data transfer speeds.

• CloudFormation is used to automate the deployment of infrastructure resources in a repeatable and predictable manner.

• CloudFront is a CDN service that caches content at edge locations to reduce latency, ...read more

To improve performance in React JS, optimize rendering, minimize re-renders, use virtualization, lazy loading, code splitting, and memoization.

• Optimize rendering by using shouldComponentUpdate or React.memo for functional components

• Minimize re-renders by using PureComponent or memoization techniques like useMemo or useCallback

• Use virtualization for long lists or tables to render only the visible items

• Implement lazy loa...read more

Difference between @requestbody and @responsebody annotations in Spring MVC

• The @RequestBody annotation is used to bind the HTTP request body to a method parameter in Spring MVC controller

• The @ResponseBody annotation is used to bind the return value of a method to the HTTP response body in Spring MVC

• Example: @RequestBody User user - binds the request body to a User object parameter

• Example: @ResponseBody String hello() -...read more

Declare trigger is used to execute a set of actions when a specific event occurs, while declare index is used to improve query performance by creating an index on a table column.

• Declare trigger is used to perform actions like updating other tables or sending notifications when a specific event occurs.

• Declare index is used to speed up query performance by creating an index on a column in a table.

• Triggers are executed in...read more