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Mediakind global Interview Questions and Answers
Ques:- What is the role of 5G in augmented reality AR and virtual reality VR
Right Answer:
5G enhances augmented reality (AR) and virtual reality (VR) by providing high-speed data transfer, low latency, and the ability to connect many devices simultaneously. This allows for smoother, more immersive experiences, real-time interactions, and seamless streaming of high-quality content in AR and VR applications.
Ques:- What is beamforming in 5G and how does it work
Right Answer:
Beamforming in 5G is a technology that directs radio signals towards specific users or devices rather than broadcasting signals in all directions. It works by using multiple antennas to create focused beams of radio waves, which improves signal strength, reduces interference, and enhances overall network efficiency.
Ques:- What is the significance of edge computing in 5G
Right Answer:
Edge computing in 5G is significant because it reduces latency by processing data closer to the source, improves bandwidth efficiency, enhances real-time data processing for applications like IoT and autonomous vehicles, and enables faster response times, ultimately leading to a better user experience.
Ques:- What is the difference between GET, POST, PUT, and DELETE in HTTP
Right Answer:
GET is used to retrieve data from a server, POST is used to send data to a server to create a resource, PUT is used to update an existing resource on the server, and DELETE is used to remove a resource from the server.
Ques:- What is API testing and what tools can be used for it
Right Answer:
API testing is the process of verifying that an application programming interface (API) functions as expected, ensuring it meets the requirements for functionality, reliability, performance, and security. Tools that can be used for API testing include Postman, SoapUI, JMeter, RestAssured, and Swagger.
Ques:- What are the common status codes in HTTP responses
Right Answer:
The common status codes in HTTP responses are:

- **200**: OK
- **201**: Created
- **204**: No Content
- **400**: Bad Request
- **401**: Unauthorized
- **403**: Forbidden
- **404**: Not Found
- **500**: Internal Server Error
- **502**: Bad Gateway
- **503**: Service Unavailable
Ques:- What is CORS and how does it affect API development
Right Answer:
CORS, or Cross-Origin Resource Sharing, is a security feature implemented by web browsers that allows or restricts web applications from making requests to a domain different from the one that served the web page. It affects API development by requiring developers to configure their APIs to specify which origins are allowed to access their resources, ensuring that only trusted domains can interact with the API.
Ques:- What is OAuth and how does it work in API authentication
Right Answer:
OAuth is an open standard for access delegation commonly used for token-based authentication and authorization. It allows third-party applications to access a user's resources without sharing their credentials.

In API authentication, OAuth works by having the user authorize the application to access their data. The process involves:

1. The user is redirected to an authorization server to log in and grant permission.
2. The authorization server issues an access token to the application.
3. The application uses this access token to make API requests on behalf of the user.
4. The API validates the token and grants access to the requested resources.
Ques:- Difference b/w Machine config vs. web configInProcess vs out process session stateState server and sqlserver Cookie less session state 5. gui programming
Right Answer:
**Machine.config vs. Web.config:**
- **Machine.config**: A global configuration file for all applications on a server, located in the .NET Framework installation directory.
- **Web.config**: A specific configuration file for an individual web application, located in the application's root directory.

**In-Process vs. Out-of-Process Session State:**
- **In-Process**: Session state is stored in the memory of the web server; faster but not shared across multiple servers.
- **Out-of-Process**: Session state is stored outside the web server (e.g., in a state server or SQL Server); slower but can be shared across multiple servers.

**State Server vs. SQL Server:**
- **State Server**: A dedicated service that stores session state in memory, allowing for faster access but limited to the server's memory.
- **SQL Server**: Stores session state in a database, providing persistence and reliability but with potentially slower access times.

**Cookie-less
Ques:- In 3 tier Architecture What are the factors should be considered for testing?
Right Answer:
In a 3-tier architecture, the factors to consider for testing include:

1. **Layer Interaction**: Ensure proper communication between the presentation, business logic, and data layers.
2. **Data Integrity**: Validate data flow and consistency across all layers.
3. **Performance**: Test response times and load handling for each tier.
4. **Security**: Check for vulnerabilities at each layer, including data access and user authentication.
5. **Scalability**: Assess how well the application scales with increased load.
6. **Error Handling**: Verify that errors are properly managed and logged across layers.
7. **Usability**: Test the user interface for functionality and user experience.
8. **Integration**: Ensure that external systems and services interact correctly with the application.
Ques:- Suppose there are 2 persons A and B on FB . A should be able to view the pictures of B only if either A is friend of B or A and B have at least one common friend . The interviewer discussed it for nearly 30 minutes . The discussion mainly included…
Right Answer:
To implement this requirement, you can use a graph data structure where each user is a node, and friendships are edges connecting these nodes. When user A wants to view user B's pictures, check if A is directly connected to B (i.e., they are friends) or if there exists a common friend (i.e., a mutual connection) between A and B. If either condition is met, allow access to B's pictures; otherwise, deny access.
Ques:- The characters entered through keyboard gets converted to equivalent ASCII code & stored on RAM in the binary form. What is exact procedure to happens on hardware that converts the ASCII value to equivalent binary form?
Right Answer:
When a character is entered through the keyboard, the following procedure occurs:

1. **Key Press Detection**: The keyboard sends a signal to the keyboard controller indicating which key was pressed.
2. **Scan Code Generation**: The keyboard controller generates a scan code corresponding to the key pressed.
3. **Interrupt Signal**: The controller sends an interrupt signal to the CPU, indicating that a key has been pressed.
4. **Interrupt Handling**: The CPU pauses its current task and executes the interrupt handler for the keyboard.
5. **Scan Code Translation**: The interrupt handler translates the scan code into the corresponding ASCII value using a lookup table.
6. **Storage in RAM**: The ASCII value is then converted into its binary representation (using the binary encoding of the ASCII character) and stored in RAM.

This process allows the character to be represented in binary form for further processing by the computer.
Ques:- What is Apple?s VITAL architecture?
Right Answer:
Apple's VITAL architecture stands for "Vulnerability Identification and Threat Assessment Lifecycle." It is a framework designed to enhance the security of Apple's software and hardware by systematically identifying vulnerabilities, assessing threats, and implementing mitigation strategies throughout the development lifecycle.
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