Double Negative Interview Questions and Answers

Q1. What is a polymorphism?
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Q2. Can you explain difference between == and euqals()?
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Q3. What is dependency inversion?
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Q4. Can you explain ACID?
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Q5. Please tell me about isolation levels
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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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Q1. Tell me about yourself.
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For example, a ₹10 LPA CTC could mean an in-hand salary of ₹70,000–₹75,000 per month, depending on deductions and benefits.

✨ 𝗣𝗿𝗼 𝗧𝗶𝗽: Always request a detailed salary structure during negotiations—it’s your roadmap to making informed decisions

𝗖𝗧𝗖 𝘃𝘀 𝗜𝗻-𝗛𝗮𝗻𝗱 𝗦𝗮𝗹𝗮𝗿𝘆: 𝗧𝗵𝗲 𝗥𝗲𝗮𝗹𝗶𝘁𝘆 𝗖𝗵𝗲𝗰𝗸 𝗘𝘃𝗲𝗿𝘆 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗡𝗲𝗲𝗱𝘀!

We’ve all been there—excitedly discussing job offers and hearing about the impressive CTC (Cost to Company). But when payday arrives, you wonder

Q1. 2️⃣ 𝗜𝗻-𝗛𝗮𝗻𝗱 𝗦𝗮𝗹𝗮𝗿𝘆: This is the actual amount you take home after deductions like: • Employee’s contribution to PF • Income tax (TDS) • Professional tax
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Q2. 𝗖𝗧𝗖 𝘃𝘀 𝗜𝗻-𝗛𝗮𝗻𝗱 𝗦𝗮𝗹𝗮𝗿𝘆: 𝗧𝗵𝗲 𝗥𝗲𝗮𝗹𝗶𝘁𝘆 𝗖𝗵𝗲𝗰𝗸 𝗘𝘃𝗲𝗿𝘆 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗡𝗲𝗲𝗱𝘀! We’ve all been there—excitedly discussing job offers and hearing about the impressi...read more
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Q1. How many variance in sap?
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Q2. We cac explain the all accounts receivable and accounts payable
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Q3. What is the cost element and cost center?
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Q4. How many we have currencies in sap?
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Q5. How many types of projects
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Q1. How many ways can we call a server side code from Client side?
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Q2. How to create a new request type in ITSM?
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Q3. Restrict a characters for 'Investment' field in incident table that characters should not exceed 500 characters do this in client script or UI policy?
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Q4. What is the use GFST submit?
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Q5. Using 'IT Service Manager' role description and short description should be visible?
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Q6. Types of Client Scripts?
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Q7. Client script or UI Policy which one will runs first and why?
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Q8. Types of Business rule, difference between after and Async business rule?
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Q9. There are 4 types of Business rule, can we change the order of Business rule?
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Q10. Email Notification scripts scenario?
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Q11. What is the use of isolate checkbox?
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Q12. Xml() and xml() wait difference?
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Q13. How will you achieve UI action in server side and client side, I.e both the code should work in client side and server side
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Q14. There is a 'Investment' field in incident table Old value: Standard New Value: SMA Replace the options, instead of standard, SMA option should be updated to all records in the table.
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Q15. Can we use previous in Business rule?
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Q16. Normal change states
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Q17. What is the use of get reference?
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Coding is the alphabet letters and write the correct coding in the right way

Aptitude involves the mathematical calculations required to assess amounts over a year.

The assignment revolves around the appropriate skills and experience relevant to the company.

Q1. What is the role of your company?
Ans. 
Our company provides IT solutions and services to businesses of all sizes.
• Developing and maintaining computer systems and networks

• Providing technical support to clients

• Implementing security measures to protect data

• Offering cloud computing solutions

• Managing data storage and backup systems
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Q2. What contributions do you plan to make to this company?
Ans. 
I plan to contribute my strong technical skills, attention to detail, and dedication to ensuring smooth operations.
• Implementing efficient processes to improve workflow

• Troubleshooting and resolving technical issues promptly

• Maintaining accurate records and documentation

• Collaborating with team members to enhance overall productivity
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Q1. What is the nature of technical communication within this company?
Ans. 
Technical communication within the company is clear, concise, and collaborative.
• Technical communication is primarily done through emails, instant messaging, and project management tools.

• Documentation is regularly updated and easily accessible to all team members.

• Meetings and presentations are used to discuss technical issues and updates.

• Collaboration tools like Slack and Microsoft Teams are used for real-time communica
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Q2. What are your communication skills, and how do you plan to apply them in this company?
Ans. 
I have strong communication skills and plan to apply them by effectively conveying information, collaborating with team members, and providing excellent customer service.
• I have experience in effectively communicating with team members to ensure smooth workflow.

• I am skilled in conveying complex technical information in a clear and concise manner.

• I plan to actively listen to colleagues and clients to understand their nee...read more
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A business plan assignment and an introduction to business assignment.

In the company, when there is a project, one team member is required to lead a group discussion about that project to enhance communication skills.

If you have a case regarding the company, how would you approach it?

Q1. What is the aim of your company?
Ans. 
Our company aims to provide efficient and reliable computer operations support to maximize productivity and minimize downtime.
• Maximizing productivity through efficient computer operations

• Minimizing downtime by providing reliable support

• Ensuring smooth functioning of computer systems

• Improving overall efficiency and performance
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Q2. What benefits does the company provide?
Ans. 
The company provides a comprehensive benefits package including health insurance, retirement plans, paid time off, and professional development opportunities.
• Health insurance coverage for employees and their families

• Retirement plans such as 401(k) with employer matching

• Paid time off including vacation days, sick leave, and holidays

• Professional development opportunities like training programs and tuition reimbursement
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Q1. What interests you about this company, and what contributions do you believe you can make to it?
Ans. 
I am interested in the company's innovative technology and believe my experience in troubleshooting and system maintenance can contribute to its success.
• I am impressed by the company's reputation for cutting-edge technology and commitment to excellence.

• I have a strong background in troubleshooting hardware and software issues, which can help maintain smooth operations.

• I am skilled in system maintenance and can ensure o...read more
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Q2. What skills are you bringing to this company?
Ans. 
I bring strong technical skills, attention to detail, and the ability to troubleshoot and resolve issues efficiently.
• Proficiency in operating computer systems and software

• Attention to detail in monitoring and maintaining systems

• Ability to troubleshoot and resolve technical issues efficiently

• Experience in data backup and recovery processes
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No numerical aptitude questions were asked, only reasoning based and general English and grammar based questions

If aptitude section you got cut off score only then coding section opens up. 2 easy level coding questions were asked.

Q1. Listening and repeating
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Q2. Speaking on given topic
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Q3. Answer questions by listening to story
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Q4. Fill in sentences
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Q5. Totally 8 sections with 3 attempts allowed
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Q1. Self intro and family background
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Q2. Project explanation
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Q3. Hobbies and interests. General HR questions
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