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Typically it is always the same L4 (UDP or TCP) + L3 (IP) + L2 (Ethernet)
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Typically it is always the same L4 (UDP or TCP) + L3 (IP) + L2 (Ethernet)

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By default yes, but SNMP can be configured to use TCP.
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By default yes, but SNMP can be configured to use TCP.

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Li, in <a href="https://www.experts-exchange.com/questions/29069219/Why-was-UDP-chosen-over-TCP.html" rel="ugc">https://www.experts-exchange.com/questions/29069219/Why-was-UDP-chosen-over-TCP.html</a>&nbsp;you already state that UDP is used for SNMP ...
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Li, in https://www.experts-exchange.com/questions/29069219/Why-was-UDP-chosen-over-TCP.html [https://www.experts-exchange.com/questions/29069219/Why-was-UDP-chosen-over-TCP.html] you already state that UDP is used for SNMP ...

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Looks like, anyway, it is another homework assignment. :)<br />
But, info regarding SNMP and L4 protocol. SNMP sometimes need to be reliable.<br />
<a href="https://tools.ietf.org/html/rfc3430" rel="ugc">RFC 3430 - Simple Network Management Protocol (SNMP) over Transmission Control Protocol (TCP) Transport Mapping</a><br />
<a href="http://www.rfc-editor.org/rfc/rfc5953.txt" rel="ugc">RFC 5953 &nbsp;Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)</a><br />
:)
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Looks like, anyway, it is another homework assignment. :)
But, info regarding SNMP and L4 protocol. SNMP sometimes need to be reliable.
RFC 3430 - Simple Network Management Protocol (SNMP) over Transmission Control Protocol (TCP) Transport Mapping [https://tools.ietf.org/html/rfc3430]
RFC 5953  Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP) [http://www.rfc-editor.org/rfc/rfc5953.txt]
:)

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<div class="content wysiwyg-content">
What lower-layer protocol encapsulates SNMP messages?
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What lower-layer protocol encapsulates SNMP messages?

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.

Networking Protocols

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).

Network Analysis

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.