The Message Authentication Code (MAC) is a widely used technique for performing message authentication, and one MAC algorithm has emerged as the Internet standard for a wide variety of applications: Hash-Based Message Authentication Code (HMAC).
Based on your reading and understanding of the topic, answer the following:
SNMP has evolved over time into the SNMPv2 and then lastly with the SNMPv3. SNMP provided a minimal but powerful set of facilities for monitoring and control of network elements using a straightforward Structure of Management Information (SMI), MIB, and protocol. But as there are more requirements for monitoring and as networks became more complex, new versions of the SNMP are released.