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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.
Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para
i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?
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In RIP why we have HOP count of 15?
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Quality assurance through statistical methods is a key component in a manufacturing organization where TQM generally starts by sampling a random selection selection of th
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