10 Questions
Which transport layer protocol is connection-oriented and requires a session to be established before exchanging data?
TCP
Which transport layer protocol is connectionless and provides no guarantee of delivery?
UDP
Which characteristic makes TCP the main protocol used at the transport layer for predominance of human interactions over the Internet?
Large volume data transport
What is the analogy used to describe TCP's connection-oriented nature?
Traditional telephone conversation
What is the analogy used to describe UDP's connectionless nature?
Traditional mail delivery system
Which transport protocol is most often used in the context of network services like Domain Name System (DNS) and Network Time Protocol (NTP)?
UDP
Why is UDP preferred for real-time data traffic such as voice and video over IP?
Because it has lower overhead per packet and per session.
In which scenario is TCP often considered overkill on constrained IoT devices and networks?
For LLNs with limited devices and constrained networks.
What is the recommended choice of transport protocol for LLNs, considering the constraints of both devices and the network itself?
UDP due to its lower overhead and suitability for constrained networks.
How can DLMS/COSEM reduce the overhead associated with session establishment over LLNs?
By supporting long association to optimize open associations.
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.
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.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
