1. Write the full SNMP engine ID for:

a. SNMPv1 for a 3Com hub with the IPv4 address 100.100.100.100 in the 6th to 9th octets followed by 0s from the 10th octets.

b. SNMPv3 for a Cisco router interface with ::100.100.100.100 as its IPv6 address.

2. Access RFC 2274 and list and define the primitives provided by the authentication module at the sending and receiving security models. Describe the services provided by the primitives.