Deutsche Bank
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Transactional annotation in Spring is used to define the scope of a transaction.
Transactional annotation is used to mark a method or a class as transactional.
It ensures that all the operations within the annotated method or class are executed within a single transaction.
If an exception occurs, the transaction is rolled back.
Transactional annotation can be applied at the method level or class level.
It provides various a...
Cache in Spring is a mechanism to store frequently accessed data in memory for faster retrieval.
Cache improves application performance by reducing the load on the database.
Spring provides caching support through annotations like @Cacheable, @CachePut, and @CacheEvict.
Caches can be configured with different eviction policies, such as LRU or FIFO.
Example: @Cacheable annotation can be used to cache the result of a method
I was interviewed before Mar 2016.
posted on 31 Oct 2022
I applied via Company Website and was interviewed before Oct 2021. There were 2 interview rounds.
I have followed the MVC, Singleton, and Factory design patterns in my past projects.
MVC pattern for separating concerns and improving maintainability
Singleton pattern for ensuring only one instance of a class is created
Factory pattern for creating objects without exposing the instantiation logic
Applications can be secured by implementing various security measures such as authentication, authorization, encryption, and regular updates.
Implement strong authentication mechanisms such as multi-factor authentication
Use authorization to restrict access to sensitive data and functionalities
Encrypt sensitive data both in transit and at rest
Regularly update the application and its dependencies to patch security vulnera...
posted on 19 Apr 2020
I applied via Company Website and was interviewed in Oct 2019. There were 4 interview rounds.
I applied via Naukri.com and was interviewed in Apr 2022. There were 2 interview rounds.
posted on 10 Jul 2024
LRU cache design involves maintaining a cache with limited capacity and removing the least recently used item when the cache is full.
Use a doubly linked list to maintain the order of items based on their usage.
Implement a hash map for fast access to items in the cache.
When a new item is accessed, move it to the front of the linked list to mark it as the most recently used.
When the cache is full, remove the item at the ...
I was interviewed in Feb 2025.
Basic quantitative questions, directional questions, relational questions, etc.
The advantages and disadvantages of social media.
I interned at a tech startup where I worked on developing a web application for managing customer data.
Developed front-end using React.js and back-end using Node.js
Implemented RESTful APIs for data retrieval and manipulation
Collaborated with team members to troubleshoot and optimize code
Gained experience in agile development practices
I have worked on various projects including e-commerce websites, social media platforms, and data visualization tools.
Developed an e-commerce website using React and Node.js
Built a social media platform with Django and React
Created a data visualization tool using D3.js
posted on 16 Oct 2024
I applied via LinkedIn and was interviewed in Apr 2024. There was 1 interview round.
1)Buy and sell stock
2)2 sum
3) system design
4) Elastic search
5) deployment
I applied via Recruitment Consulltant and was interviewed in Nov 2021. There were 3 interview rounds.
Basic data structure related coding questions like creating a linked list and adding items to it median.
Max heap implementation.
Concurrency related questions.
I applied via Campus Placement and was interviewed in Dec 2020. There were 3 interview rounds.
Static is a keyword in Java used to create class-level variables and methods.
Static variables are shared among all instances of a class
Static methods can be called without creating an instance of the class
Static blocks are used to initialize static variables
Static import is used to import static members of a class
The program replaces consecutive same characters in a string with a single '$'.
Iterate through each character in the string
Compare the current character with the next character
If they are the same, replace the next character with '$'
Continue until the end of the string
Function overloading is having multiple functions with the same name but different parameters. Function overriding is having a derived class implement a method with the same name and parameters as a method in its base class.
Function overloading is used to provide different ways of calling a function with different parameters.
Function overriding is used to provide a specific implementation of a method in a derived class...
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