Internet & Web Services: Detailed Explanation Video Lecture | Computer Application: Class 10

Ans. The internet refers to the global network of computers that are connected and communicate with each other using a common set of protocols. On the other hand, web services are specific services that are provided over the internet, allowing users to access and interact with information or applications through web browsers.

Ans. Web services use a combination of protocols, such as HTTP and XML, to enable communication between different applications or systems over the internet. The service provider exposes its functionality through a web API, which clients can access using standard web protocols. The client sends requests to the web service, which then processes the request and sends back a response.

Ans. There are various examples of web services, including: - Weather services: Websites or applications that provide real-time weather information based on location. - Payment gateways: Services that enable secure online payments by connecting e-commerce websites with financial institutions. - Social media APIs: APIs offered by social media platforms that allow developers to integrate social features into their applications. - Mapping and geolocation services: Services that provide maps, directions, and geolocation functionality. - Email services: Web-based email platforms that allow users to send, receive, and manage their emails.

Ans. Web services offer several benefits to businesses, including: - Interoperability: Web services allow different applications and systems to communicate and share data seamlessly, even if they are built on different technologies or platforms. - Scalability: Businesses can easily scale their services by exposing web APIs, allowing other applications or systems to integrate and consume their functionality. - Cost-effectiveness: Web services reduce the need for duplicating functionality in multiple applications, as they can be accessed and reused by different clients. - Enhanced user experience: By integrating web services, businesses can provide their users with additional features and functionalities without investing in extensive development efforts.

Ans. Security is a crucial aspect of web services. Some of the common security considerations include: - Authentication and authorization: Web services should implement mechanisms to authenticate users and authorize access to their resources. - Secure communication: Data transmitted between the client and the web service should be encrypted using secure protocols, such as HTTPS, to protect against eavesdropping and data tampering. - Input validation: Web services should validate and sanitize user input to prevent common security vulnerabilities, such as SQL injection or cross-site scripting (XSS). - Access control: Proper access control mechanisms should be implemented to ensure that only authorized users or systems can access specific resources or functionalities of the web service. - Auditing and logging: Web services should maintain logs and audit trails to track and monitor activities, aiding in the identification and investigation of security incidents.