Modelo OSI - Capas y Funciones
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La capa de ______ establece y termina sesiones entre dos dispositivos.

sesión

La capa de ______ asegura la entrega confiable de extremo a extremo de datos.

transporte

La capa de ______ se ocupa de la representación de datos y traduce el mensaje a un formato apropiado para la transmisión a través de la red.

presentación

La capa de ______ proporciona acceso al software de aplicación que se ejecuta en otros ordenadores.

<p>aplicación</p> Signup and view all the answers

El modelo OSI consta de siete capas, cada una con funciones específicas que trabajan juntas para lograr una comunicación fiable, segura y eficiente entre diferentes sistemas y aplicaciones. Una de estas capas es la capa de ______.

<p>sesión</p> Signup and view all the answers

La capa de ______ garantiza la entrega de extremo a extremo de datos de manera confiable.

<p>transporte</p> Signup and view all the answers

En la capa de ______, las conexiones se realizan y mantienen.

<p>sesión</p> Signup and view all the answers

En la capa de ______, la confiabilidad y la verificación de errores se realizan.

<p>transporte</p> Signup and view all the answers

Por debajo de la capa de ______, en la capa de red, los datos se enrutan al destinatario previsto.

<p>red</p> Signup and view all the answers

Luego, pasa por la capa de ______ de datos para convertir los datos en señales eléctricas para la transmisión sobre la capa física.

<p>enlace</p> Signup and view all the answers

En la capa de ______, los datos se formatean adecuadamente antes de moverse hacia abajo en el modelo OSI.

<p>presentación</p> Signup and view all the answers

Datos es primero procesado a través de la capa de ______ donde se formatea apropiadamente.

<p>aplicación</p> Signup and view all the answers

Study Notes

OSI Model

The Open Systems Interconnection (OSI) model is a conceptual framework used by network designers, computer engineers, and computer scientists to understand how data is transmitted from one machine to another over a communication channel. It consists of seven layers, each with specific functions that work together to accomplish reliable, secure, and efficient communication between different systems and applications. Here's an overview of the OSI model and its seven layers:

  1. Application Layer: This provides access to application software running on other computers. Communication protocols like HTTP, FTP, SNMP, SMTP, and Telnet operate at this layer. It also includes security measures such as encryption and authentication.

  2. Presentation Layer: This layer deals with data representation and translates the message into a format appropriate for transmission across the network. Examples include compression, data encryption, and character set translation.

  3. Session Layer: The session layer establishes and terminates sessions between two devices. When a user logs onto a remote system using SSH, a session is established. In addition, it manages connections and dialogues between machines.

  4. Transport Layer: This layer ensures reliable end-to-end delivery of data. Protocols like TCP and UDP operate at this layer, providing connection-oriented and connectionless services respectively.

  5. Network Layer: This layer handles routing and packet forwarding, allowing you to send packets to the correct destination based on their IP addresses. It determines the best path to the recipient.

  6. Data Link Layer: This layer controls physical data transfer. It handles address recognition, hub-and-switch operation, error checking, flow control, frame synchronization, and data conversion. It also provides error detection capabilities.

  7. Physical Layer: At this bottommost layer of the OSI model, data is converted into electrical signals and transmitted over wires or radio waves. Its primary role is transmitting raw bit streams, which can only carry messages as voltage changes over time.

Understanding the OSI model helps us visualize the process of sending a file from one computer to another. For example, when you open Microsoft Word on your laptop and save a document, each action has specific steps in the OSI model. Data is first processed through the presentation layer where it is formatted appropriately, then moves down to the session layer where connections are made and maintained, followed by the transport layer where reliability and error checks are performed. Below the transport layer, in the network layer, the data is routed to the intended recipient. Then, it goes through the data link layer to convert the data into electrical signals for transmission over the physical layer.

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Description

Aprende sobre el Modelo OSI, un marco conceptual que describe cómo se transmite data entre máquinas a través de un canal de comunicación. Consta de siete capas, cada una con funciones específicas que trabajan en conjunto para lograr una comunicación fiable, segura y eficiente. Entender este modelo es esencial para comprender el proceso de envío de archivos entre dispositivos.

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