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The diagram below offers an overall view on the methods use by both the OSI and TCP/IP model.
ISO Approach
- Occasionally called Horizontal Approach
- OSI asserts that distributed applications function over a strict hierarchy of layers and are constructed from a common tool kit of standardized application service elements.
- In OSI each distributed application service selects functions from a large common -toolbox? of application service element (ASEs) and complements these with application service elements that perform functions specific to given end-user service.
TCP/IP Approach
- Occasionally called Vertical Approach
- In TCP/IP every application entity is composed of whatever set of function it needs beyond end to end transport to support a distributed communications service.
- Most of these application processes builds on what it requirements and assumes only that an underlying transport mechanism (datagram or connection) will be provided.
Explain Logical Ring Physical Star topology for Token-Passing Standard. It is definite that any break in the ring at any point will interrupt communications for all machines.
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Name the OSI layer which performs code conversion, code formatting and encryption Ans) Presentation layer performs code conversion, code formatting and encryption
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