Auro Peptides Interview Questions, Process, and Tips

Q1. What are the features of Java 8?
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Q2. What are generics in Java, and how do they provide benefits?
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Q3. Streams API coding questions.(3-4 question.)
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Q4. What are the classes involved from the entity to the controller level, and can you explain the annotations used in each?
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Q5. SQL queries(2-3 questions).
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Q6. What is the usage of Spring Batch, and how did you implement it in your project? What are its key features?
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Q7. What is the mechanism of how React works, specifically in relation to the Virtual DOM?(Some Additional questions on React - Theoretical)
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Q1. Which design patterns are you familiar with?
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Q2. Which design patterns have you used, and how have you implemented them? Please explain.
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Q3. What are threads in the context of programming?
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Q4. Benefits of Spring Boot over Spring?
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Q1. It was basic salary and expectation discussion.
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Q1. More questions asked, oops, coding and selenium, testNG related questions
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Q2. Drop down coding
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Q1. Many questions related to projects but not selected at last
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Q1. Basics of Java selenium
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Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes the retrieved data?
Ans. 
Custom hooks in React are reusable functions that allow you to extract component logic into separate functions for better code organization and reusability.
• Custom hooks are created using the 'use' prefix and can be used to share logic between components.

• Use cases for custom hooks include fetching data from an API, handling form state, managing local storage, and more.

• Example of a custom hook for API call: const useFetc...read more
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Q2. What is the difference between useMemo and useCallback in React?
Ans. 
useMemo is used to memoize a value, while useCallback is used to memoize a function.
• useMemo is used to memoize a value and recompute it only when its dependencies change.

• useCallback is used to memoize a callback function and prevent unnecessary re-renders.

• Example: useMemo can be used to memoize the result of a complex computation, while useCallback can be used to memoize an event handler function.
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Q3. What is the difference between class-based components and functional components in React?
Ans. 
Class-based components use ES6 classes and have lifecycle methods, while functional components are simpler and use functions.
• Class-based components use ES6 classes to create components, while functional components are created using functions.

• Class-based components have lifecycle methods like componentDidMount and componentDidUpdate, while functional components do not.

• Functional components are simpler and more lightweig...read more
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Q4. How can you implement the lifecycle of a React component in a functional component?
Ans. 
Implementing the lifecycle of a React component in a functional component
• Use the useEffect hook to replicate lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount

• Pass an empty array as the second argument to useEffect to mimic componentDidMount

• Pass a variable or state as the second argument to useEffect to mimic componentDidUpdate

• Return a cleanup function inside useEffect to mimic compo
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Q5. What are the various state management techniques available in React?
Ans. 
Various state management techniques in React include Context API, Redux, and local state.
• Context API: React's built-in solution for passing data through the component tree without having to pass props down manually at every level.

• Redux: A popular state management library for React applications, allowing for a centralized store to manage application state.

• Local state: Managing state within individual components using us
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Q6. What is the architecture of Redux, and what purposes do middlewares serve within it?
Ans. 
Redux is a predictable state container for JavaScript apps. Middlewares are functions that intercept actions before they reach the reducer.
• Redux follows a unidirectional data flow architecture.

• Middlewares in Redux are functions that can intercept, modify, or dispatch actions.

• Common use cases for middlewares include logging, asynchronous API calls, and handling side effects.

• Examples of popular Redux middlewares are Redu...read more
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Q7. What is hoisting in JavaScript?
Ans. 
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted to the top of their scope, but not their initializations.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.
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Q8. What is event bubbling in JavaScript?
Ans. 
Event bubbling is the propagation of events from the target element up through its ancestors in the DOM tree.
• Events triggered on a child element will 'bubble up' and trigger on parent elements.

• Event listeners can be attached to parent elements to handle events from multiple child elements.

• Stopping event propagation can be done using event.stopPropagation() or event.stopImmediatePropagation().
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Q9. What are block scope and function scope in JavaScript?
Ans. 
Block scope and function scope are two types of scopes in JavaScript that determine the visibility and accessibility of variables.
• Block scope refers to the visibility of variables within a block of code enclosed by curly braces. Variables declared with 'let' and 'const' have block scope.

• Function scope refers to the visibility of variables within a function. Variables declared with 'var' have function scope.

• Variables de...read more
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Q10. Have you had experience working with semantic tags in HTML?
Ans. 
Yes, I have experience working with semantic tags in HTML.
• Used semantic tags like <header>, <nav>, <main>, <section>, <article>, <aside>, <footer> for better structure and SEO.

• Understand the importance of using semantic tags for accessibility and search engine optimization.

• Semantic tags help in organizing content and making it more readable for developers and browsers.
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Q11. What are the various methods for creating an object in JavaScript?
Ans. 
Various methods for creating an object in JavaScript include object literals, constructor functions, ES6 classes, and Object.create() method.
• Object literals: var obj = { key: value };

• Constructor functions: function ObjectName() { this.key = value; } var obj = new ObjectName();

• ES6 classes: class ClassName { constructor() { this.key = value; } } var obj = new ClassName();

• Object.create() method: var obj = Object.create(pr
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Q12. What are the differences between shallow copy and deep copy in JavaScript?
Ans. 
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
• Shallow copy creates a new object but does not create copies of nested objects, only copies their references.

• Deep copy creates a new object and also creates new copies of all nested objects.

• Shallow copy can be achieved using Object.assign() or spread operator, while deep copy can be achieved using JSON.parse(
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Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`?
Ans. 
The code will throw an error because 'a' is declared but not initialized.
• The code will result in a ReferenceError because 'a' is declared but not assigned a value.

• Variables declared with 'const' must be initialized at the time of declaration.

• Initializing 'a' with a value before calling test() will prevent the error.
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Q14. How can you use CSS to arrange elements in a row and column layout?
Ans. 
CSS can be used to arrange elements in a row and column layout using flexbox or grid layout properties.
• Use display: flex; for a row layout and display: flex; flex-direction: column; for a column layout

• Use justify-content and align-items properties to align items in the main axis and cross axis respectively

• For grid layout, use display: grid; and grid-template-columns or grid-template-rows to define the layout
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Q15. Have you utilized CSS preprocessors, and if so, which ones?
Ans. 
Yes, I have utilized CSS preprocessors such as SASS and LESS.
• I have experience using SASS to streamline my CSS workflow by utilizing variables, mixins, and nesting.

• I have also worked with LESS to improve code organization and maintainability through features like variables and functions.
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Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence?
Ans. 
The color applied will be based on the specificity of the selector, with ID having higher specificity than class.
• ID has higher specificity than class in CSS

• Color applied will be based on the selector with higher specificity

• Example: If ID selector has color red and class selector has color blue, the color applied will be red
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Online assessment (Technical, English, Reasoning)

Q1. Difference between Balance sheet and trial balance
Ans. 
Balance sheet shows assets, liabilities, and equity at a specific point in time. Trial balance lists all ledger accounts with their balances.
• Balance sheet is a snapshot of a company's financial position at a specific point in time.

• Trial balance is a list of all ledger accounts with their balances to ensure debits equal credits.

• Balance sheet includes assets, liabilities, and equity sections.

• Trial balance is used to prep...read more
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Q2. Standard costing formula
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Standard costing formula calculates the expected cost of a product based on predetermined standards.
• Standard costing formula includes direct materials, direct labor, and overhead costs.

• It helps in comparing actual costs with standard costs to identify variances.

• Formula: Standard Cost = Standard Quantity of Inputs x Standard Price of Inputs
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Q3. Journal entries for Prepaid Accruals Depreciation with accumulated depreciation concept Provision for Bad debts DTA and DTL
Ans. 
Explanation of journal entries for Prepaid, Accruals, Depreciation, Provision for Bad debts, DTA, and DTL.
• Prepaid expenses are initially recorded as assets and then expensed over time as they are used up.

• Accruals are expenses incurred but not yet paid or revenue earned but not yet received.

• Depreciation is the allocation of the cost of a fixed asset over its useful life, with accumulated depreciation representing the to...read more
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Q4. Case study on Ind AS 115
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Q5. Preparation of balance sheet and computation of various ratios
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Preparation of balance sheet involves listing assets, liabilities, and equity. Ratios are computed using financial data from the balance sheet.
• List all assets, liabilities, and equity on the balance sheet

• Calculate various financial ratios such as current ratio, debt to equity ratio, and return on equity

• Use formulae like Current Ratio = Current Assets / Current Liabilities

• Interpret the ratios to analyze the financial he
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Q6. Accounting principles
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Q1. What is DTA and DTL
Ans. 
DTA stands for Deferred Tax Asset and DTL stands for Deferred Tax Liability.
• DTA is an asset recorded on a company's balance sheet that may be used to reduce taxable income in the future.

• DTL is a liability recorded on a company's balance sheet that represents taxes that have been accrued but not yet paid.

• DTA arises when a company has overpaid taxes or has tax deductions that exceed its taxable income.

• DTL arises when a c...read more
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Q2. Accounting entry for accumulated depreciation
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Accumulated depreciation is a contra asset account that represents the total depreciation expense taken on an asset since it was acquired.
• Accumulated depreciation is recorded on the balance sheet as a reduction from the gross amount of fixed assets to arrive at the net book value.

• The accounting entry for accumulated depreciation involves debiting the depreciation expense account and crediting the accumulated depreciati...read more
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Q3. Few resume based questions
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Q4. Standard costing formula
Ans. 
Standard costing formula calculates the expected cost of a product based on predetermined standards.
• Standard costing formula = Standard cost of direct materials + Standard cost of direct labor + Standard manufacturing overhead cost

• Standard cost of direct materials = Standard quantity of materials x Standard price per unit

• Standard cost of direct labor = Standard hours of labor x Standard rate per hour

• Standard manufactur...read more
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Q5. Difference between budgeting and forecasting
Ans. 
Budgeting involves setting financial goals and allocating resources, while forecasting predicts future financial outcomes based on past data and trends.
• Budgeting is a plan for how to allocate resources and achieve financial goals

• Forecasting predicts future financial outcomes based on past data and trends

• Budgeting is typically done on an annual basis, while forecasting can be done on a shorter or longer term basis

• Budget...read more
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Q6. Meaning of variance analysis
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Variance analysis is a technique used to identify and analyze the difference between planned financial outcomes and actual results.
• Variance analysis helps in understanding the reasons for deviations from budgeted or expected figures.

• It involves comparing actual financial performance with budgeted or standard performance.

• Common types of variances include price variance, quantity variance, and mix variance.

• Variance analy...read more
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