Deutsche Bank UI Developer Interview Questions and Answers

Q1. How to find difference between two dates?
Ans. 
To find the difference between two dates, subtract the earlier date from the later date.
• Subtract the earlier date from the later date

• Use a date library or built-in functions to perform the subtraction

• Consider time zones and daylight saving time if applicable
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Q2. How to use gather stats?
Ans. 
Gather stats is used to collect statistics about database objects in order to optimize query performance.
• Gather stats is a command in database management systems like Oracle and PostgreSQL.

• It collects information about the distribution of data in tables and indexes.

• This information helps the query optimizer to generate efficient execution plans.

• Gather stats can be used on individual tables, indexes, or the entire datab...read more
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Q3. How to reverse a string in Unix?
Ans. 
To reverse a string in Unix, you can use the 'rev' command.
• Use the 'rev' command followed by the string you want to reverse.

• The 'rev' command reads the input from right to left and outputs it in reverse order.

• The 'rev' command can be used with pipes to reverse the output of other commands.
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Q1. Spring, spring boot, java, Junit5
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Q2. Angular if going forFullstack
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1. DS algorithms with linked list questions and dynamic programming

Q1. Prototype inheritance
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The questiona all are from aptitude

Some technical medium range questions asked

Q1. Main questions are from data structure
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Q2. Some questions are from java
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Q3. Some personal questions
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In my first round of the interview was an aptitude test. Some English, mathematics, reasoning and general knowledge questions were there.

In this 2nd round there was some English Multiple Choice Questions.

Q1. This round was my final round. Here I got some technical questions and situation Based questions and some reasoning questions also.
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Q2. What is the difference between React and JavaScript? ES6 features questions. What is React JS? What is Redux in React? Etc...
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Q3. What is Components in React?
Ans. 
Components in React are reusable, independent pieces of code that manage their own state and can be composed together to build complex user interfaces.
• Components are the building blocks of React applications

• They can be class components or functional components

• Components can have their own state and lifecycle methods

• Components can be reused throughout the application

• Example:

  , ,
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Q4. Is functional components and class components both are same or not?
Ans. 
Functional components and class components are not the same in React. Functional components are simpler and more lightweight, while class components have additional features like state and lifecycle methods.
• Functional components are stateless and are just JavaScript functions that return JSX.

• Class components have access to state and lifecycle methods like componentDidMount and componentDidUpdate.

• Functional components a...read more
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Q5. Why React is reusable?
Ans. 
React is reusable because it allows developers to create components that can be easily reused throughout an application.
• React components can be easily reused in different parts of an application, saving time and effort.

• Components can be composed together to build complex UIs, promoting reusability.

• React's virtual DOM efficiently updates only the components that have changed, improving performance and reusability.
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3 DSA questions were asked