Table of Contents
What are the advantages and disadvantages of using a layered model?
With the layered approach, the bottom layer is the hardware, while the highest layer is the user interface. The main advantage is simplicity of construction and debugging. The main difficulty is defining the various layers. The main disadvantage is that the OS tends to be less efficient than other implementations.
What are the advantages of a layered networking model?
The benefits of using a layered model are that it facilitates troubleshooting, it focuses on details rather than general functions and it breaks the complex process of networking into manageable chunks.
What is the advantage of layered protocol architecture?
The division of network protocols and services into layers not only helps simplify networking protocols by breaking them into smaller, more manageable units, but also offers greater flexibility. By dividing protocols into layers, protocols can be designed for interoperability.
What are the advantages of organizing network architectures in layers?
The reasons and advantages of using the network architecture are as follows: – It simplifies the design process as the functions of each layers and their interactions are well defined. – The layered architecture provides flexibility to modify and develop network services.
Why do we use OSI model?
The OSI Model (Open Systems Interconnection Model) is a conceptual framework used to describe the functions of a networking system. The OSI model characterizes computing functions into a universal set of rules and requirements in order to support interoperability between different products and software.
What are the disadvantages of OSI model?
Disadvantages of OSI Model
- Implementation. OSI is entirely a theoretical model.
- Adaptation. Many companies were initially reluctant to use this OSI model due to the popularity of TCP/IP model.
- Effectiveness. Unlike TCP/IP, an OSI model failed to meet the practical expectations.
- Complexity.
- Collaboration.
Why do we need protocol layering?
Each layer adds the necessary information to the data so that the receiving system understands how to handle the data and is able to route the data. At the bottom layer on the sending side, the data is physically transmitted across some medium to the receiving system.
Which layer comes after session layer?
presentation layer
The session Layer is responsible for fetching or receiving data information from its previous layer (transport layer) and further sends data to the layer after it (presentation layer).