Find Interview Questions for Startup - Navya Network

Right Answer:
5G improves network reliability and coverage through advanced technologies like beamforming, which directs signals more precisely, and massive MIMO, which uses multiple antennas to enhance capacity and reduce interference. Additionally, 5G utilizes a denser network of small cells, improving coverage in urban areas and challenging environments.

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.

Right Answer:
5G impacts industries by enabling faster data transfer, lower latency, and greater connectivity. In healthcare, it allows for real-time remote monitoring and telemedicine. In manufacturing, it supports automation and IoT devices for improved efficiency. In entertainment, it enhances streaming quality and enables immersive experiences like AR and VR.

Right Answer:
Massive MIMO (Multiple Input Multiple Output) is a technology that uses a large number of antennas at the base station to serve multiple users simultaneously. In 5G, it enhances capacity and efficiency by improving signal quality, increasing data rates, and enabling better coverage, which leads to a more reliable and faster wireless communication experience.

Right Answer:
5G enhances mobile device performance by providing faster data speeds, lower latency, and increased capacity for more simultaneous connections, resulting in improved streaming, gaming, and overall user experience.

Right Answer:
M2M (Machine to Machine) refers to direct communication between devices without human intervention, typically in a closed network. IoT (Internet of Things) encompasses a broader concept where devices connect to the internet, allowing for data exchange and interaction with other systems, often involving human users and cloud services.

Right Answer:
IoT, or the Internet of Things, refers to a network of physical devices that are connected to the internet, allowing them to collect and exchange data. It works by using sensors and software embedded in devices to gather information, which is then transmitted over the internet to be processed and analyzed, enabling remote monitoring and control.

Right Answer:
Major applications of IoT in real life include:

1. Smart homes (e.g., smart thermostats, lighting, and security systems)
2. Wearable health devices (e.g., fitness trackers and smartwatches)
3. Industrial automation (e.g., predictive maintenance and asset tracking)
4. Smart cities (e.g., traffic management and waste management)
5. Agriculture (e.g., precision farming and livestock monitoring)
6. Connected vehicles (e.g., navigation and vehicle diagnostics)
7. Supply chain management (e.g., inventory tracking and logistics optimization)

Right Answer:
To update firmware in deployed IoT devices, you typically use an Over-The-Air (OTA) update process. This involves the following steps:

1. **Prepare the Firmware**: Develop and test the new firmware version.
2. **Secure the Update**: Sign the firmware to ensure authenticity and integrity.
3. **Notify Devices**: Use a cloud server to notify the devices about the available update.
4. **Download the Update**: Devices connect to the server to download the new firmware.
5. **Install the Update**: The device installs the firmware, often with a rollback option in case of failure.
6. **Verify the Update**: The device checks if the update was successful and reports back to the server.

This process ensures that devices can be updated remotely and securely without physical access.

Right Answer:
Sensors in IoT collect data from the environment, such as temperature, humidity, or motion, while actuators perform actions based on that data, such as turning on a light or adjusting a thermostat. Together, they enable devices to interact with the physical world.

Right Answer:
Webhooks are user-defined HTTP callbacks that are triggered by specific events in a web application, allowing real-time data transfer. They differ from APIs in that APIs require a request to be made to receive data, while webhooks automatically send data when an event occurs without needing a request.

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.

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.

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.

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.

Right Answer:
"In one project, we underestimated the complexity of integrating a new third-party API. This caused us to miss our sprint goal. To address this, we immediately re-estimated the remaining work, broke down the integration into smaller, more manageable tasks, and increased communication with the API vendor. We also temporarily shifted team focus to prioritize the integration, delaying a lower-priority feature for the next sprint. Finally, in the sprint retrospective, we implemented a better vetting process for third-party integrations to avoid similar issues in the future."

Right Answer:
Agile is an iterative and incremental approach to project management that focuses on collaboration, flexibility, and customer satisfaction. Unlike traditional, sequential (waterfall) methods, Agile embraces change throughout the project lifecycle through short development cycles called sprints.

Right Answer:
A sprint backlog is a detailed plan of work for a specific sprint, derived from the product backlog. It's created during sprint planning by the development team, who select items from the product backlog they commit to complete, then break down those items into tasks and estimate the effort required for each.

Right Answer:
A product backlog is a prioritized list of features, bug fixes, tasks, and requirements needed to build a product. It's managed through regular refinement, prioritization, estimation, and updates based on feedback and changing business needs, often facilitated by the Product Owner.

Right Answer:
During a sprint, I generally avoid scope creep. If a change request is small and doesn't impact the sprint goal, the team can discuss and decide if it can be included. If the change is significant, it goes into the product backlog to be prioritized for a future sprint.