Podcast
Questions and Answers
Which transport layer protocol is connection-oriented and requires a session to be established before exchanging data?
Which transport layer protocol is connection-oriented and requires a session to be established before exchanging data?
Which transport layer protocol is connectionless and provides no guarantee of delivery?
Which transport layer protocol is connectionless and provides no guarantee of delivery?
Which characteristic makes TCP the main protocol used at the transport layer for predominance of human interactions over the Internet?
Which characteristic makes TCP the main protocol used at the transport layer for predominance of human interactions over the Internet?
What is the analogy used to describe TCP's connection-oriented nature?
What is the analogy used to describe TCP's connection-oriented nature?
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What is the analogy used to describe UDP's connectionless nature?
What is the analogy used to describe UDP's connectionless nature?
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Which transport protocol is most often used in the context of network services like Domain Name System (DNS) and Network Time Protocol (NTP)?
Which transport protocol is most often used in the context of network services like Domain Name System (DNS) and Network Time Protocol (NTP)?
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Why is UDP preferred for real-time data traffic such as voice and video over IP?
Why is UDP preferred for real-time data traffic such as voice and video over IP?
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In which scenario is TCP often considered overkill on constrained IoT devices and networks?
In which scenario is TCP often considered overkill on constrained IoT devices and networks?
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What is the recommended choice of transport protocol for LLNs, considering the constraints of both devices and the network itself?
What is the recommended choice of transport protocol for LLNs, considering the constraints of both devices and the network itself?
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How can DLMS/COSEM reduce the overhead associated with session establishment over LLNs?
How can DLMS/COSEM reduce the overhead associated with session establishment over LLNs?
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Study Notes
Transport Layer Protocols
- TCP (Transmission Control Protocol) is a connection-oriented protocol that requires a session to be established before exchanging data.
- UDP (User Datagram Protocol) is a connectionless protocol that provides no guarantee of delivery.
Characteristics of TCP
- TCP is the main protocol used at the transport layer for most human interactions over the Internet due to its reliability and guaranteed delivery.
- The connection-oriented nature of TCP is often described as a "phone call" analogy, where a connection is established before data is exchanged.
Characteristics of UDP
- UDP's connectionless nature is often described as a "postcard" analogy, where data is sent without establishing a connection.
- UDP is often used in real-time data traffic such as voice and video over IP due to its low latency and high throughput.
Transport Protocols in IoT Devices and Networks
- TCP is often considered overkill on constrained IoT devices and networks due to its high overhead.
- UDP is the recommended choice of transport protocol for Low-Power and Lossy Networks (LLNs), considering the constraints of both devices and the network itself.
- DLMS/COSEM can reduce the overhead associated with session establishment over LLNs by using a compact and efficient protocol design.
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Description
Test your knowledge of transport layer protocols in IoT networks, including TCP and UDP. Explore the specific considerations for using traditional transport mechanisms in IoT networks.
