What transport type is used by SNMP?

Simple Network Management Protocol (SNMP) primarily uses User Datagram Protocol (UDP) as its transport type. This choice is correct because UDP is a connectionless protocol that allows for low-latency communication, which is essential for the frequent and rapid polling of network devices that SNMP performs. The use of UDP facilitates faster data transfer without the overhead of establishing and maintaining a connection, making it suitable for the types of network management tasks that SNMP is designed for.

In contrast, other protocols such as TCP are connection-oriented and introduce additional latency due to handshaking requirements. HTTP is a protocol primarily used for transferring webpages and applications, and while ICMP is used for network diagnostics like ping operations, neither of these is relevant to the transport functions of SNMP.