Airpay Payment Services Senior Software Developer Interview Questions and Answers

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
Ans. 
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. Diff between react and jQuery
Ans. 
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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Min and max value from an array of integers, reverse of a string

Q1. Data Structures, Algorithms, Understand Common Problem Patterns,
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Q2. Advance Laravel and PHP
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Q1. Data Structure and algorithm
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Q2. System design question
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Round one consist of coding problems and there's a minimum criteria of solving 2 problems at least to clear this round

Q1. First question was a coding question, merge intervals leetcode
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Q2. Second question was again of leetcode, compare strings
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Q1. Questuohn aksed about ds algo not otughj onew
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Q2. AFS FJBN.EJKF AFBJ
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Q3. DHB WFJG WDJ
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Q4. SD E W D
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Q1. Question aksed in one on one
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Q1. What is for loop,
Ans. 
A for loop is a control flow statement for specifying iteration, which allows code to be executed repeatedly.
• Used to iterate over a sequence of elements

• Consists of initialization, condition, and increment/decrement expressions

• Example: for(int i=0; i<5; i++) { // code block }
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Q2. What is jobs and queues
Ans. 
Jobs and queues are concepts used in computer science to manage tasks and data flow in a systematic manner.
• Jobs refer to individual tasks or processes that need to be executed.

• Queues are data structures that store jobs in a specific order for processing.

• Jobs are added to the queue and processed in a first-in, first-out (FIFO) manner.

• Queues help in managing the order of execution and prioritizing tasks based on their im...read more
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Q1. What are containers in laravel
Ans. 
Containers in Laravel are lightweight and portable units that package up code and all its dependencies, allowing for easy deployment and scaling.
• Containers in Laravel are created using Docker, a popular containerization platform.

• They provide a consistent environment for running applications, regardless of the underlying infrastructure.

• Containers help in isolating applications and their dependencies, making it easier to...read more
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