Which term represents the numeric identifier that uniquely identifies an object in the MIB hierarchy?

• A. MIB
• B. GetRequest
• C. OID
• D. Trap

Answer: (C)

In SNMP and MIBs, objects are addressed by a numeric path called an Object Identifier. This OID is a dotted-decimal string that uniquely identifies a specific object within the MIB hierarchy, allowing SNMP to locate and retrieve its value. The OID’s uniqueness comes from its position in the tree; each level adds a number that guides you from the root to the exact object.

The MIB is the collection of definitions describing available objects, not the identifier itself. GetRequest is an SNMP operation used to retrieve the value of an object, and Trap is an asynchronous alert sent by a managed device. The numeric path used to specify the exact object in SNMP queries is the OID.