The correct answer is B.
OBJ-3.1: The Simple Network Management Protocol (SNMP) uses ports 161 and 162, and it is a networking protocol used for the management and monitoring of network-connected devices in Internet Protocol networks. A unique objective identifier (OID) identifies a variable that can be read or set using the SNMP protocol. The management information base (MIB) is a translation file that is used to describe the structure of the management data of a device subsystem using a hierarchical namespace containing object identifiers (OID). A trap is an asynchronous notification from the agent to the manager. A trap is sent by the agent to notify the management of a significant event that is occurring in real-time, such as an alarming condition. A granular trap contains a unique object identifier (OID) number and a value for that OID. A verbose trap may contain all the information about a given alert or event as its payload. A verbose trap contains more information and data than a granular trap, and therefore requires more bandwidth to send the verbose trap over the network.