What is the primary purpose of the Management Information Base (MIB) in network management using SNMP?

• A. Encrypting traffic
• B. Handling routing tables
• C. Configuring IP addresses
• D. Managing all entities on a network using SNMP protocol

Answer: (D)

The MIB is a structured catalog of the data that SNMP can access on a device. It defines the objects and their relationships that describe every manageable aspect—like interfaces, CPU usage, and memory—each with a unique identifier. This standardized data model lets an SNMP manager query or configure values across different devices, using the SNMP protocol, by providing the vocabulary and structure for what can be managed. It isn’t about encrypting traffic, handling routing tables, or configuring IP addresses directly; those are separate functions. Instead, the MIB tells SNMP what data exists and how to access it, enabling consistent monitoring and management of all entities on the network.