SNMPv3 Protocol Security Features:

SNMPv3 Protocol Security Features

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Which three security features were introduced with the SNMPv3 protocol? (Choose three.)



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A. B. C. D. E. F.


SNMPv3 (Simple Network Management Protocol version 3) is a protocol used for network management and monitoring. It is an updated version of SNMPv2 and includes several security features to ensure the confidentiality, integrity, and availability of network devices.

The three security features introduced with SNMPv3 are:

A. Message integrity: SNMPv3 uses cryptographic hash functions such as MD5 or SHA-1 to ensure that the data has not been tampered with during transit. The hash function generates a fixed-length message digest that is attached to the original message. If the message is modified during transmission, the message digest will not match, and the receiver will know that the message has been altered.

C. Authentication: SNMPv3 provides authentication to ensure that the message is from a valid source. It uses a shared secret or a digital certificate to authenticate the sender. The shared secret is a passphrase that is known only to the sender and receiver. The digital certificate is issued by a trusted Certificate Authority (CA) and contains the public key of the sender.

D. Authorization: SNMPv3 provides authorization to control access to certain data sections for certain authorized users. The user credentials are stored in the SNMPv3 user database, and access is granted based on the user's role and permissions.

The other answer options are incorrect:

B. DoS prevention: SNMPv3 does not prevent Denial of Service (DoS) attacks caused by buffer overflows. However, SNMPv3 does provide some protection against DoS attacks by limiting the number of SNMP packets that can be sent to the device.

E. Digital certificates: SNMPv3 does support digital certificates for authentication, but it does not provide non-repudiation of authentication. Non-repudiation is a feature that prevents the sender from denying that they sent a message.

F. Encryption: SNMPv3 does support encryption, but it is not a security feature introduced with SNMPv3. Encryption is an optional feature that can be enabled in SNMPv3 to protect the confidentiality of SNMP messages.