DCB Bank Full Stack Engineer Interview Questions and Answers

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Java OPPS, JavaScript, HTML, SQL Questions / 1 Hour

Q1. Project, Design, Tools, Framework, Coding Stuff
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Q1. The most difficult challenges faced, situation-based approach, dealing with ambiguous requirements
Ans. 
Dealing with ambiguous requirements and difficult challenges in a situation-based approach.
• Identifying and clarifying ambiguous requirements through effective communication

• Breaking down complex problems into smaller, manageable tasks

• Adapting to changing priorities and tight deadlines

• Collaborating with team members to brainstorm solutions

• Using critical thinking and problem-solving skills to find innovative solutions

• Mana...read more
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Q1. Puzzles, Probability, Maths BrainTeasers, Conflict Situation Response, Dare Stapes
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Q1. Standard Norms Question, Salary Expection, Reason for Change, culture fit questions
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Q1. What is transactional annotation in spring ?
Ans. 
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...read more
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Q2. What is cache in spring?
Ans. 
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
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Q3. It stores the data in cache, where checks the dup
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30 Technical MCQs, 1 medium level code

Q1. Java technical interview
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Q1. Compensation discussion and RISES values questions
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Round duration - 30 minutes
Round difficulty - Medium

It was in the morning. We had to complete 1 coding question in given time limit

Q1. Most Frequent Word
You are given a paragraph that may have letters both in lowercase and uppercase, spaces, and punctuation. You have also given a list of banned words. Now your task is to find the most fr...read more
Ans. Brute Force
1. To find the frequency of each word we need to extract the words from the paragraph.
2. So we will convert all the punctuation to space in the paragraph and lowercase alphabets to uppercase.
3. Now we can use the library function (e.g sstream in C++) to extract words from the paragraph in an array of strings say WORDS.
4. We will iterate over WORDS and do:
   1. Iterate over the banned array and check if the current word is pre...read more
Answered by CodingNinjas
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Round duration - 60 minutes
Round difficulty - Hard

Interviewer was friendly. He asked 2 coding questions and some fullstack questions. 

Q1. Ways To Make Coin Change
You are given an infinite supply of coins of each of denominations D = {D0, D1, D2, D3, ...... Dn-1}. You need to figure out the total number of ways W, in which you can make a cha...read more
Ans. Recursion
 
1. The idea is to use recursion.
2. For a particular coin, we have two options either include it or exclude it.
3. If we include that coin, then calculate the remaining number that we have to generate so recur for that remaining number.
4. If we exclude that coin, then recur for the same amount that we have to make.
5. Our final answer would be the total number of ways either by including or excluding.
6. There will be two edg...read more
Answered by CodingNinjas
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Q2. The Skyline Problem
You are given 'N' rectangular buildings in a 2-dimensional city. Your task is to compute the skyline of these buildings, eliminating hidden lines return the skyline formed by th...read more
Ans. Brute Force
The idea here is to first, sort the critical POINTS with respect to their coordinate and height pairs. Make a pair of 'X1' and take a negative of the height for the building so that 'X1' pairs are sorted before 'X2' pairs. Create a dictionary keeping the heights as keys and as soon as a left edge of a building is encountered, we add that building to the dictionary with its height as the key. When we encounte...read more
Answered by CodingNinjas
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Q3. Technical Questions
What is DOM? 
What are indexes in database. 
What is the difference between stored functions and procedures?
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Not every process has aptitude but for IT departments and technical team ask for aptitude test

Q1. If fresher then you must know about the company and some banking terminology. If applying for specific role then you must carry knowledge of that subject.
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Q1. They will discuss about norms and salary structure
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