Which layer is exemplified by a fat client?
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Application
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Association
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Data
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Logical
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Presentation
To answer this question, the user needs to be familiar with the concept of the OSI model and its layers.
A fat client is a type of client-server architecture where the majority of data processing occurs on the client-side. In this architecture, the client is responsible for most of the application logic, data storage, and processing.
Now, let's go through each option and determine if it's the correct answer:
A. Application: This layer is responsible for providing access to the network for applications. It includes protocols such as HTTP, SMTP, and FTP. While a fat client may have an application layer, it is not exemplified by this layer.
B. Association: This is not a layer in the OSI model, so it cannot be the correct answer.
C. Data: This layer is responsible for the reliable transfer of data between two nodes on a network. It includes protocols such as TCP and UDP. While a fat client may use these protocols, it is not exemplified by this layer.
D. Logical: This layer is responsible for ensuring that data is transmitted error-free between devices on the network. It includes protocols such as IP and ICMP. While a fat client may use these protocols, it is not exemplified by this layer.
E. Presentation: This layer is responsible for transforming data into a form that is readable by the application layer. It includes protocols such as SSL and TLS. A fat client is exemplified by the Presentation layer because it performs most of the application logic and data processing.
Therefore, the correct answer is:
The Answer is: E
A "fat client" refers to an architecture where much of the application's user interface and presentation logic runs on the client machine itself, rather than being served thin from a central server. That places it squarely in the presentation layer of a layered architecture, as opposed to the data or application (business logic) layers, which fat clients typically still delegate to a server for.