16. What are some of the major differences between SNMPv3 and SNMPv2? Choose all that apply

A: SNMP v3 requires username/passwords

B: SNMPv3 requires community string

s C: SNMPv3 uses 56-bit DES encryption to encrypt packets

D: SNMPv3 uses 128-bit AES encryption to encrypt packets

17. What is the biggest security risk associated with Simple Network Management Protocol SNMP?

A: DES encryption can be cracked

B: weak data integrity

C: lack of vendor support

D: default community strings

18. What layers of the OSI model are protected by encryption with an IPsec VPN security solution?

A: layers 2-7

B: layers 3-7

C: layers 4-7

D: layers 5-7

E: layers 6-7