Icnd1: Tcp/ip And Osi Models

An enterprise network is specifically created by a company or organization for internal communication and sharing of resources among its employees, not open to the public or for personal or social use.

ISO stands for The International Organization for Standardization, which is a global body that develops and publishes standards to ensure the quality, safety, and efficiency of products, services, and systems.

The OSI model is a conceptual framework used to understand network communications.

RFC stands for Request for Comment, which is a formal document used by the Internet Engineering Task Force (IETF) to develop and publish Internet standards.

The correct layers of the TCP/IP model are Application layer, Transport layer, Internet layer, and Network Interface layer as these are the standard layers in the TCP/IP protocol suite.

The application layer is responsible for providing network services directly to end-users. It is the layer where software applications communicate with the network. This layer does not handle the physical transmission of data, encryption of packets, or routing of data packets within the network.

HTTP stands for Hyper Text Transfer Protocol and HTML stands for Hyper Text Markup Language. The other options provided do not accurately represent the acronyms.

Same layer interaction refers to communication between two devices at the same layer of the OSI model, facilitated by headers and protocols. It is distinct from communication across different layers, physical data transmission, or interference.

The correct answer includes TCP and UDP as the main protocol options for the transport layer in TCP/IP. Internet Protocol (IP) is a network layer protocol, not a transport layer protocol. Hypertext Transfer Protocol (HTTP) is an application layer protocol used for web communications. Simple Mail Transfer Protocol (SMTP) is also an application layer protocol used for email transmissions, not a transport layer protocol.

TCP's acknowledgment mechanism ensures that data packets are successfully received and retransmits any lost packets, providing error-recovery at the application level.

Adjacent layer interaction refers to the communication and service provision between neighboring layers within the same networking device, as defined by the OSI model.

Encapsulation in computer science refers to wrapping data in some form of protocol or structure, such as headers and trailers, to provide additional information and context for the data being transmitted or stored.

The process of sending data in TCP/IP involves a series of encapsulation steps starting from the application layer all the way down to the physical layer for transmission. Each layer adds its own header information to the data before passing it down to the next lower layer.

The data at the transport layer is referred to as a segment, at the internet layer it is called a packet, and at the network access layer it is defined as a frame.

Layer 5 of the OSI model, the session layer, is responsible for managing sessions, including starting, controlling, and ending conversations. It ensures that the application is notified correctly of message completion and provides a seamless view of data for the presentation layer.

Layer 2 of the OSI model, which is the Data Link layer, deals with communication between devices on the same network segment, ensuring data is delivered error-free. The other layers mentioned in the incorrect answers have different responsibilities within the OSI model.

Layer 1 of the OSI model, the Physical layer, deals with the physical characteristics of the transmission medium and how data is transmitted over it. The incorrect answers provided describe other layers of the OSI model which perform different functions.

Layer 1 of the OSI model deals with physical connections and transmitting raw binary data over a physical medium. Protocols and devices at Layer 1 focus on the physical aspects of data transmission.

Layer 2 of the OSI model is the Data Link Layer. This layer is responsible for node-to-node communication and control flow. Protocols and devices operating at Layer 2 are involved in framing, error detection, and flow control within a single network segment, such as a LAN.

Layer 4 of the OSI model is the Transport layer, responsible for end-to-end communication. Protocols like TCP and UDP operate at this layer for reliable and connectionless communication, while devices such as routers, switches, and hubs operate at lower layers like Layers 2 and 3.

The TCP/IP model is based on a four-layer model that includes the Application, Transport, Internet, and Link layers. It is commonly associated with terms like frames, packets, and segments. On the other hand, the OSI model consists of seven layers and defines terms like Protocol Data Units (PDUs) for encapsulated data.