Modelo Cliente/Servidor

Summary

The client-server model is a fundamental network structure where specific agents (clients and servers) share information. Clients demand services from servers, which provide resources through defined protocols. The model is commonly used in internet systems and enterprise networks. The script explores the concepts of clients, servers, protocols, services, and databases, and highlights two types of architecture: two-tier and three-tier. It also discusses practical applications, advantages such as cloud computing, and challenges like security and maintenance costs, offering a comprehensive view of how this model facilitates communication and data management.

Takeaways

• 😀 The client-server model is a network structure that involves specific agents—clients and servers—interacting to exchange information.
• 😀 A **client** is a system (e.g., a computer or app) that requests services or information from a server.
• 😀 A **server** is a system that provides or delivers services and information to the client.
• 😀 **Protocols** are the established set of rules and steps for transmitting information over a network.
• 😀 A **database** is an organized collection of information that servers and clients can access to fulfill requests.
• 😀 The **client-server model** is widely used in modern networks, including the Internet, to transmit information between clients and servers.
• 😀 In **2-tier architecture**, the client directly requests resources from the server without requiring additional services.
• 😀 **3-tier architecture** involves multiple layers, where the server may need to interact with additional applications or servers to fulfill a request.
• 😀 A practical example of the client-server model can be seen in a login system, where the client sends user information to the server, which then checks the database for validation.
• 😀 The model supports **cloud computing**, offering new opportunities for mobility and multiplatform access to applications and services.
• 😀 One limitation of the client-server model is the high cost of maintaining and repairing network systems, especially when services span global regions.

Q & A

What is the client-server model?

The client-server model is a modular and network-based structure for transmitting information, where specific agents, called clients and servers, interact through a network to share information.

What are the key components of the client-server model?

The key components of the client-server model are the clients, servers, protocols for communication, services, and databases.

How do clients and servers interact in this model?

Clients request services from servers, and servers provide resources or services in response to those requests. This interaction occurs over a network.

What is a protocol in the context of the client-server model?

A protocol is a set of rules and standards for the transmission of information across the network. It ensures proper communication between clients and servers.

What role do databases play in the client-server model?

Databases store and organize information, serving as storage locations for both servers and clients. Servers retrieve data from databases to fulfill client requests.

What is an example of a real-world application of the client-server model?

A common example is the Internet, where users (clients) connect to web servers to access websites and retrieve information or services.

What are the differences between two-level and three-level client-server architecture?

In two-level architecture, clients directly request resources from servers, and servers respond with their own resources. In three-level architecture, servers may require additional servers or applications to fulfill a client request.

What is an example of a business application of the client-server model?

A fruit processing company could use a client-server model to manage tasks such as tracking cherry packaging and employee work hours, using a network of computers and servers.

What are some advantages of the client-server model?

Advantages include cloud computing services, which allow for storage and access to services like emails, virtual desktops, games, and more, through cloud infrastructure and platforms.

What are some limitations of the client-server model?

Limitations include the high cost of maintenance, potential security issues due to data sharing across the network, and the need for skilled personnel to repair network issues or server problems.