Protocols

Why do we need different protocols at different levels of the TCPIP model?

Why do we need different protocols at different levels of the TCPIP model?
  1. Why do we need different protocols?
  2. Why do we need to have different addresses at different layers of TCP IP?
  3. Why so many protocols are needed in the transport layer?
  4. What are main protocols working at each layer and why TCP and IP are considered as the foundational protocols of the TCP IP network model?
  5. Why are protocols necessary in communication?
  6. Why different network standards and protocols are necessary?
  7. What are the relationship between protocols and layers?
  8. What is the main purpose of the Transmission Control Protocol TCP?
  9. What are the various addressing used in different layers of OSI?
  10. Why do we need transport layer protocols?
  11. Why are transport layer protocols like TCP and UDP called end-to-end protocols?
  12. Which two protocols work at the transport layer and ensures that data gets to the right applications?
  13. Why is Internet Protocol important?
  14. How many protocols are used in the application layer *?

Why do we need different protocols?

Hence, to resolve this problem, we need protocols. Protocols provide us with a medium and set of rules to establish communication between different devices for the exchange of data and other services. Protocols are needed in every field like society, science & technology, Data Communication, media, etc.

Why do we need to have different addresses at different layers of TCP IP?

The answer is that they are very different types of addresses that are used for different purposes. Layer two addresses (such as IEEE 802 MAC addresses) are used for local transmissions between hardware devices that can communicate directly. They are used to implement basic LAN, WLAN and WAN technologies.

Why so many protocols are needed in the transport layer?

When a host sends a message to other host means that source process is sending a process to a destination process. The transport layer protocols define some connections to individual ports known as protocol ports.

What are main protocols working at each layer and why TCP and IP are considered as the foundational protocols of the TCP IP network model?

The two most important protocols in the Transport Layer are Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). TCP provides reliable data delivery service with end-to-end error detection and correction. UDP provides low-overhead, connectionless datagram delivery service.

Why are protocols necessary in communication?

Protocols specify interactions between the communicating entities. ... Protocols are basically needed because it's important for the receiver to UNDRSTAND the sender. In computer communications, protocols also make sure the message gets to its destination properly, in entirety, and with out distortion.

Why different network standards and protocols are necessary?

Protocols and standards make networks work together. Protocols make it possible for the various components of a network to communicate with each other, and standards make it possible for different manufacturers' network components to work together.

What are the relationship between protocols and layers?

Layers provide a division of the work done by a network. Networks are set up with a protocol hierarchy that divides the communication task into several layers. A protocol is a set of rules for communication within a layer. A service is what the layer provides to the layer above it through an interface.

What is the main purpose of the Transmission Control Protocol TCP?

TCP stands for Transmission Control Protocol a communications standard that enables application programs and computing devices to exchange messages over a network. It is designed to send packets across the internet and ensure the successful delivery of data and messages over networks.

What are the various addressing used in different layers of OSI?

Four levels of addresses are used in the TCP/IP protocol: physical address, logical address, port address, and application-specific address as shown in Figure.

Why do we need transport layer protocols?

The transport layer provides a total end-to-end solution for reliable communications. TCP/IP relies on the transport layer to effectively control communications between two hosts. When an IP communication session must begin or end, the transport layer is used to build this connection.

Why are transport layer protocols like TCP and UDP called end-to-end protocols?

Transport Layer is the second layer of the TCP/IP model. It is an end-to-end layer used to deliver messages to a host. It is termed as an end-to-end layer because it provides a point-to-point connection rather than hop-to- hop, between the source host and destination host to deliver the services reliably.

Which two protocols work at the transport layer and ensures that data gets to the right applications?

The two most important protocols in the Transport Layer are Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). TCP provides reliable data delivery service with end-to-end error detection and correction.

Why is Internet Protocol important?

Essentially, it allows connected devices to communicate with each other, regardless of any differences in their internal processes, structure or design. Network protocols are the reason you can easily communicate with people all over the world, and thus play a critical role in modern digital communications.

How many protocols are used in the application layer *?

Explanation: More than 15 protocols are used in the application layer, including file transfer protocol, Telnet, Trivial File Transfer Protocol and simple network Management Protocol.

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