Which of the following is the encryption algorithm used for priv option when using SNMPv3?
A.
HMAC-SHA
B.
HMAC-MD5
C.
CBC-DES
D.
AES
E.
3DES
Explanation:
SNMPv3
Feature Summary
Simple Network Management Protocol Version 3 (SNMPv3) is an interoperable standards-based
protocol for network management. SNMPv3 provides secure access to devices by a combination
of authenticating and encrypting packets over the network. The security features provided in
SNMPv3 are:
Message integrity—Ensuring that a packet has not been tampered with in-transit.
Authentication—Determining the message is from a valid source.
Encryption—Scrambling the contents of a packet prevent it from being seen by an unauthorizedsource.
SNMPv3 provides for both security models and security levels. A security model is an
authentication strategy that is set up for a user and the group in which the user resides. A security
level is the permitted level of security within a security model. A combination of a security model
and a security level will determine which security mechanism is employed when handling an
SNMP packet. Three security models are available:
SNMPv1, SNMPv2c, and SNMPv3. Table 1 identifies what the combinations of security models
and levels mean:
Table 1 SNMP Security Models and Levels
http://www.cisco.com/en/US/docs/ios/12_0t/12_0t3/feature/guide/Snmp3.html#wp4363
http://www.cisco.com/en/US/docs/ios/12_0t/12_0t3/feature/guide/Snmp3.html
http://www.cisco.com/en/US/docs/ios/12_4t/12_4t2/snmpv3ae.html
