Answer:

Explanation:

a. MIB (Management Information Base)
A MIB is nothing more than a database of objects. The MIB has a tree- like structure, similar to a file system. Each leaf object represents a parameter on the managed device. A common understanding of the MIB between NMSand agent is what allows SNMP communications to work.
b. SNMP ( Simple Network Management Protocol)
Simple Network Management Protocol (SNMP) is the de facto standard network management protocol for the IP protocol suite. Developed in the late 1980s by the IETF (Internet Engineering Task Force), SNMP provides asimple means for vendors to provide management capabilities to their networking devices
SNMP defines a manager/agent relationship for network management. A manager device essentially has two functions: monitor and control. It monitors network devices (agents) by sending queries for performance, configuration, and status information. It controls agents by sending directives to change configuration parameters. An example of an SNMP manager is an NMS (network management station) running CiscoWorks2000, while an agent might be a Cisco 7500 router. The NMS, acting as manager, communicates with the 7500, acting as agent, for information about its performance. SNMP is the protocol they use to communicate. An NMS can manage systems that include hosts, servers, routers, switches, hubs, UPSs, or most any network-attached device. The NMS runs the network management applications, such as CiscoWorks2000, that present management information to network managers and other users. The processing of SNMP is mostly performed by the NMS.