What are two advantages of SNMPv3 over SNMPv2c? (Choose two.)
A.
integrity, to ensure that data has not been tampered with in transit
B.
no source authentication mechanism for faster response time
C.
Packet replay protection mechanism removed for efficiency
D.
GetBulkRequest capability, to retrieve large amounts of data in a single request
E.
confidentiality via encryption of packets, to prevent man-in-the-middle attacks
Explanation:
SNMPv3 contains all the functionality of SNMPv1 and SNMPv2, but SNMPv3 has
significant enhancements to administration and security. SNMPv3 is an interoperable
standards-based protocol. SNMPv3 provides secure access to devices by authenticating
and encrypting packets over the network.
The security features provided in SNMPv3 are as follows:
• Message integrity—Ensuring that a packet has not been tampered with in transit
• Authentication—Determining that the message is from a valid source
• Encryption—Scrambling contents of a packet to prevent it from being seen by an
unauthorized source
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4000/8-
2glx/configuration/guide/snmp.pdf