Tcp/ip model
- 2. TCP/IP is a working model for communication between two computers. While OSI model is a theoretical model. TCP/IP is a stack of protocols, called TCP/IP protocol suit, that is combination of different protocols at various layers.
- 3. TCP/IP is four layer architecture. Application Transport Network Data link Physical Telnet ,FTP ,e-mail ,etc. TCP and UDP IP ,ICMP ,IGMP Device driver and network interface card Link Layer
- 4. Combination of two layer. Called link layer or Network interface layer. It includes protocols such as Ethernet, Token- Ring, FDDI, ATM etc.
- 5. It is called Internet layer. It responsible for source-to-destination delivery of message. IP is the most important protocol on this layer. Responsible for routing of packets. IP is unreliable protocol. IP is connectionless. ICMP & IGMP are two protocol on this layer.
- 6. This layer is responsible for end-to-end delivery of message. TCP & UDP are protocols at this layer TCP provides connection oriented & reliable delivery of message. UDP is unreliable & connectionless, used where fast transfer is needed. Transport layer handles the flow control & error control.
- 7. Combination of application, presentation & session layers of OSI model. Provides user interface for using a device. User can send mail, transfer a file, can share a resource with the help of this layer. Includes variety of protocols FTP, Telnet, SMTP, etc.
- 8. Queries