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Questions and Answers
What is the main difference between connection-oriented and connectionless services?
What is the main difference between connection-oriented and connectionless services?
- Connection-oriented services involve immediate SDU transfer, while connectionless services do not.
- Connectionless services require a three-phase setup, while connection-oriented services do not.
- Connection-oriented services do not have to be of the same type, while connectionless services do.
- Connectionless services have no connection setup, while connection-oriented services involve a three-phase setup. (correct)
Which protocol is an example of a connection-oriented service?
Which protocol is an example of a connection-oriented service?
- UDP
- IP
- TCP (correct)
- None of the above
In the context of layered services, what is a characteristic of TCP operating over IP?
In the context of layered services, what is a characteristic of TCP operating over IP?
- TCP and IP are independent and do not have to be of the same type. (correct)
- TCP cannot operate over IP in a connectionless manner.
- TCP and IP have to be of the same type for proper operation.
- TCP operates immediately over IP without any additional setup.
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Study Notes
Connection-Oriented vs Connectionless Services
- Connection-oriented services establish a dedicated end-to-end connection before data transmission, ensuring guaranteed delivery of data in the correct order.
- Connectionless services do not establish a dedicated end-to-end connection, each packet may take a different route, and there is no guarantee of delivery or order.
Connection-Oriented Protocol Example
- TCP (Transmission Control Protocol) is an example of a connection-oriented service, ensuring reliable, error-checked, and sequential delivery of data.
TCP Operating over IP
- When TCP operates over IP, it provides a connection-oriented service on top of a connectionless IP service, adding reliability and guaranteed delivery to IP's best-effort delivery.
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