A network administrator is analyzing the features supported by the multiple versions of SNMP. What are two features that are supported by SNMPv3 but not by SNMPv1 or SNMPv2c? (Choose two.)
- message encryption
- community-based security
- SNMP trap mechanism
- message source validation
- bulk retrieval of MIB information
Explanation: SNMPv3 provides message integrity to ensure that a packet was not tampered with and authentication to determine if the message is from a valid source. SNMPv3 also supports message encryption. SNMPv1 and SNMPv2 do not support message encryption, but do support community strings. SNMPv2c supports bulk retrieval operation. All SNMP versions support the SNMP trap mechanism.
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