CreditEnable Interview Questions and Answers

Q1. DP LPS .? Dynamic Programming
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Q2. DP SCS .? Dynamic Programming
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Q3. Frequency of characters in a string
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The task is to count the frequency of each character in a given string.
• Create an array of size 256 to store the count of each character (assuming ASCII characters)

• Iterate through the string and increment the count of each character in the array

• Print the count of each character that has a non-zero count
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Q1. SQL question for cte and limit
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Q2. Group by order by question and puzzle with senariobased
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Build a typeahead component

Q1. Build a form for personal details
Ans. 
Build a form for personal details
• Include fields for name, email, phone number, address, date of birth

• Use input fields, dropdowns, and date pickers for user input

• Add validation for required fields and correct formats

• Consider user experience with clear labels and easy navigation
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Q2. Add validations to different fields
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Implement validations for different fields in software development.
• Identify the fields that require validation such as email, password, phone number, etc.

• Use regular expressions to validate input data format.

• Implement client-side and server-side validations to ensure data integrity.

• Display error messages for invalid input to guide users on correct data entry.
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Q1. Things you have worked on in the past
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I have worked on developing and launching new mobile applications for a tech startup.
• Led cross-functional teams to define product requirements

• Conducted market research and user testing to inform product decisions

• Worked closely with designers and engineers to bring products to market

• Managed product roadmap and prioritized features based on user feedback
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Take home assignment on a relevant problem statement for the organization

Q1. Discussion on the assignment
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Q1. Details of your salary and negotiation
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Q1. Asked me to give a self introduction
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Q2. Asked me about college activities
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Q1. Diff between react and jQuery
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React is a modern JavaScript library for building user interfaces, while jQuery is a fast and concise JavaScript library for DOM manipulation.
• React is component-based, promoting reusability and modularity.

• React uses a virtual DOM for efficient updates, while jQuery directly manipulates the DOM.

• React is declarative, making it easier to reason about the UI, while jQuery is imperative.

• React is typically used for single-pa...read more
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3 dsa questions medium level

Q1. 2 medium level dp questions based on string and stocks
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Q2. One hard question based on graph
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Q1. Hr questions and java , springboot questions etc
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Q1. Leetcode medium question using heap
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Q2. MySQL Queries using joins, group by, aggregate functions
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Q1. Leetcode medium question of string
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Q2. Database design for the notification service
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Design a database schema for a notification service
• Identify the entities involved such as users, notifications, and devices

• Create tables for each entity with relevant attributes

• Establish relationships between tables using foreign keys

• Consider indexing for efficient retrieval of notifications

• Implement a mechanism for tracking read/unread status of notifications
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