10+ Interview Questions and Answers

IoT architecture refers to the structure of interconnected devices and systems in the Internet of Things, while MQTT is a lightweight messaging protocol for IoT communication.

• IoT architecture involves sensors, devices, gateways, cloud services, and applications working together.

• MQTT is a publish-subscribe protocol that allows devices to communicate over a network.

• MQTT uses topics to categorize messages and clients can subscribe to specific topics to receive relevant data.

• IoT ...read more

I have made several changes in the Test Environment and communicated the Impact Analysis to my Managers through detailed reports and meetings.

• Regularly updating test environment with new configurations and software versions

• Documenting all changes made and their potential impact on testing

• Conducting meetings with managers to discuss the impact analysis and get their feedback

• Providing detailed reports outlining the changes and their effects on testing timelines and quality

• Ensur...read more

Computer OS network layers refer to the different levels of communication protocols used in networking.

• There are typically five network layers: physical, data link, network, transport, and application.

• Each layer has its own set of protocols and functions to facilitate communication between devices.

• Examples of protocols at each layer include Ethernet at the data link layer, IP at the network layer, and TCP at the transport layer.

Object-oriented programming concepts and communication between classes.

• Object-oriented programming (OOP) is a programming paradigm based on the concept of objects.

• Encapsulation, inheritance, and polymorphism are the three main pillars of OOP.

• Inheritance allows a class to inherit properties and methods from another class.

• Polymorphism allows objects of different classes to be treated as if they were of the same class.

• Communication between classes can be achieved through method ...read more

Design a test environment for integration test scenario

• Identify the components/modules to be integrated

• Set up a dedicated integration testing server

• Ensure the test environment mirrors the production environment

• Use virtualization tools like Docker for easy setup and teardown

• Implement continuous integration for automated testing

• Monitor and analyze test results for improvements