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Avankia Interview Questions and Answers
Ques:- Company is failing, you have been brought in to save it, what do you do?
Right Answer:
Assess the current situation, identify key issues, engage with employees and stakeholders, streamline operations, focus on core products or services, improve cash flow, and develop a strategic plan for turnaround.
Ques:- A man works on the 10th floor and takes the elevator down to ground level at the end of the day. Yet every morning, he only takes the elevator to the 7th floor, even when in a hurry. But he goes all the way to the 10th floor when others are in the elevator with him or it is a rainy day. Why?
Right Answer:
The man is short and can only reach the button for the 7th floor. He can reach the button for the 10th floor when others are with him or when it's rainy and he uses an umbrella to press it.
Ques:- What will you do when client is asking you to provide something which doesn’t make any sense?
Right Answer:
I would listen carefully to the client's request, ask clarifying questions to understand their needs, and then explain why the request may not be feasible or logical. I would offer alternative solutions that align with their goals.
Ques:- A bank has a new credit card product. How would you price it?
Right Answer:
To price a new credit card product, consider the following factors:

1. **Cost Analysis**: Calculate the costs associated with issuing and managing the card, including operational costs, marketing, and customer service.

2. **Market Research**: Analyze competitors' pricing strategies and features to understand market standards and customer expectations.

3. **Target Audience**: Identify the target demographic and their willingness to pay for specific features or benefits.

4. **Risk Assessment**: Evaluate the credit risk associated with potential customers and adjust pricing to mitigate losses from defaults.

5. **Value Proposition**: Determine the unique features of the card (e.g., rewards, cashback, travel benefits) and price it based on the perceived value to customers.

6. **Regulatory Compliance**: Ensure pricing adheres to legal and regulatory requirements in the banking industry.

7. **Feedback Loop**: After launch, gather customer feedback and monitor usage patterns to adjust pricing as necessary.

Set an introductory rate or promotional offers to attract
Ques:- How would company x dealing in BPO service can increase revenue without incurring a significant cost?
Right Answer:
Company X can increase revenue without significant costs by implementing the following strategies:

1. **Upselling and Cross-selling**: Offer additional services to existing clients.
2. **Enhancing Service Quality**: Improve service delivery to retain clients and attract new ones through referrals.
3. **Leveraging Technology**: Use automation and AI tools to increase efficiency and reduce labor costs.
4. **Expanding Client Base**: Target new markets or industries that require BPO services.
5. **Flexible Pricing Models**: Introduce tiered pricing or subscription models to attract more clients.
6. **Training and Development**: Invest in employee training to improve productivity and service quality.
7. **Partnerships and Alliances**: Collaborate with other companies to offer bundled services.
Ques:- What are RESTful principles and how do they apply to API design
Right Answer:
RESTful principles include:

1. **Statelessness**: Each API call must contain all the information needed to understand and process the request, with no stored context on the server.
2. **Client-Server Architecture**: The client and server are separate, allowing for independent development and scalability.
3. **Uniform Interface**: A consistent way to interact with resources, typically using standard HTTP methods (GET, POST, PUT, DELETE).
4. **Resource-Based**: APIs should expose resources (data entities) through URIs, and clients interact with these resources.
5. **Representation**: Resources can be represented in various formats (like JSON or XML), and clients can request the format they prefer.
6. **Cacheability**: Responses should indicate whether they can be cached to improve performance and reduce server load.

These principles guide the design of APIs to be scalable, efficient, and easy to use.
Ques:- What are the different types of APIs
Right Answer:
The different types of APIs are:

1. **Open APIs (Public APIs)** - Available to developers and third parties.
2. **Internal APIs (Private APIs)** - Used within an organization.
3. **Partner APIs** - Shared with specific business partners.
4. **Composite APIs** - Combine multiple endpoints into a single call.
5. **Web APIs** - Accessible over the internet using HTTP/HTTPS.
Ques:- What is JSON and how is it used in APIs
Right Answer:
JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate. In APIs, JSON is commonly used to format data exchanged between a client and a server, allowing for structured data representation in requests and responses.
Ques:- What is the role of an API Gateway in microservices architecture
Right Answer:
An API Gateway acts as a single entry point for clients to access multiple microservices, handling requests, routing them to the appropriate services, managing authentication, rate limiting, and aggregating responses.
Ques:- What is API authentication and what are common methods
Right Answer:
API authentication is the process of verifying the identity of a user or application trying to access an API. Common methods include:

1. **API Keys**: Unique keys provided to users to access the API.
2. **Basic Authentication**: Uses a username and password encoded in Base64.
3. **OAuth**: A token-based authentication method that allows users to grant limited access to their resources without sharing credentials.
4. **JWT (JSON Web Tokens)**: A compact, URL-safe means of representing claims to be transferred between two parties, often used for stateless authentication.
5. **HMAC (Hash-based Message Authentication Code)**: Uses a secret key to create a hash of the request, ensuring data integrity and authenticity.
Ques:- How do you undo a commit that hasn’t been pushed yet?
Right Answer:

You can undo a commit that hasn’t been pushed yet by using the command `git reset HEAD~1`. This will remove the last commit while keeping your changes in the working directory.

Ques:- What is the difference between Git and GitHub?
Right Answer:

Git is a version control system that helps manage and track changes in code, while GitHub is a web-based platform that hosts Git repositories and provides collaboration features for developers.

Ques:- How do Git internals work (objects, refs, trees, blobs)?
Right Answer:

Git internals consist of four main components:

1. **Objects**: Git stores data as objects, which include blobs, trees, commits, and tags. Each object is identified by a SHA-1 hash.

2. **Blobs**: These are binary large objects that store the content of files. Each file's content is stored as a blob.

3. **Trees**: Trees represent directories and contain references to blobs (files) and other trees (subdirectories). They maintain the structure of the repository.

4. **Refs**: Refs are pointers to commits. They include branches and tags, allowing Git to track different versions of the project.

Together, these components enable Git to efficiently manage version control and track changes in a repository.

Ques:- What is Git and why is it used
Right Answer:

Git is a distributed version control system used to track changes in source code during software development. It allows multiple developers to collaborate, manage code versions, and maintain a history of changes efficiently.

Ques:- What is the difference between class and ID in CSS
Right Answer:
In CSS, a class is defined with a dot (.) and can be applied to multiple elements, while an ID is defined with a hash (#) and should be unique to a single element on a page.
Ques:- What are event bubbling and event delegation in JavaScript
Right Answer:
Event bubbling is a JavaScript event propagation method where an event starts from the target element and bubbles up to its ancestors in the DOM hierarchy. Event delegation is a technique that involves attaching a single event listener to a parent element to manage events for multiple child elements, leveraging event bubbling to handle events efficiently.
Ques:- What is AJAX and how does it work
Right Answer:
AJAX (Asynchronous JavaScript and XML) is a web development technique that allows web pages to communicate with a server and update content asynchronously without reloading the entire page. It works by using JavaScript to send requests to the server, which can return data (often in JSON or XML format) that the browser can then use to update the webpage dynamically.
Ques:- What is the DOM and how do you manipulate it
Right Answer:
The DOM (Document Object Model) is a programming interface for web documents that represents the structure of a webpage as a tree of objects. You can manipulate the DOM using JavaScript by selecting elements (e.g., using `document.getElementById`, `document.querySelector`), modifying their properties (e.g., `element.innerHTML`, `element.style`), adding or removing elements (e.g., `element.appendChild`, `element.remove`), and responding to events (e.g., `element.addEventListener`).
Ques:- What is the difference between var let and const in JavaScript
Right Answer:
`var` is function-scoped or globally-scoped and can be re-declared and updated. `let` is block-scoped, can be updated but not re-declared in the same scope. `const` is also block-scoped, cannot be updated or re-declared, and must be initialized at the time of declaration.
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