Which three SNMP features are supported only on SNMP version 3? (Choose three.)
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A. B. C. D. E. F. G.BCG.
Sure, I'd be happy to explain the three SNMP features that are supported only on SNMP version 3.
Authentication: SNMP version 3 introduced stronger security features, including authentication of SNMP messages. This means that SNMP messages can be authenticated to ensure that they are sent from a trusted source and have not been tampered with in transit. Authentication can be achieved using either MD5 or SHA-1 hash algorithms.
Privacy (Encryption): SNMP version 3 also introduced the ability to encrypt SNMP messages to ensure that they cannot be read by unauthorized parties. Encryption can be achieved using either DES or AES encryption algorithms.
Authorization and Access Controls: SNMP version 3 supports more granular access controls, allowing network administrators to define which users or groups can access which parts of the SNMP MIB (Management Information Base). This ensures that sensitive information is only accessible to authorized parties and reduces the risk of unauthorized access.
In contrast, SNMP versions 1 and 2 do not provide any built-in security mechanisms, which can leave network devices vulnerable to attacks. For example, SNMP version 1 uses community strings to authenticate messages, which can be easily intercepted and read by attackers. SNMP version 2 introduced more secure community strings, but these can still be intercepted and are not as secure as the authentication and encryption mechanisms provided by SNMP version 3.
Regarding the other answer choices, the 64-bit counter is a feature that is supported in both SNMP version 2 and SNMP version 3, while textual conventions and GET BULK operations are supported in all versions of SNMP. The inform operation is supported in both SNMP version 2 and SNMP version 3.