Which SNMP v3 security features does NPM support?

Which SNMP v3 security features does NPM support?

• A. User-based authentication (MD5/SHA) and privacy (DES/AES) with security levels noAuthNoPriv, AuthNoPriv, AuthPriv.
• B. SNMP v3 supports only authentication with no privacy.
• C. Privacy (DES/AES) only, with no authentication.
• D. No SNMP v3 support; only v2c is supported.

Answer: (A)

SNMP v3 introduces strong security options by adding authentication and privacy (encryption), governed by three security levels. NPM supports the v3 User-Based Security Model, allowing a user to authenticate using MD5 or SHA and to encrypt traffic with DES or AES. The security levels available are noAuthNoPriv (no authentication, no privacy), AuthNoPriv (authentication but no privacy), and AuthPriv (authentication with privacy). This combination covers both authentication and encryption, which is why the best answer states that NPM supports user-based authentication and privacy with those three security levels. The other statements don’t fit because SNMP v3 isn’t limited to authentication without privacy, nor to privacy without authentication, and NPM does support SNMP v3 (not just v2c).

SNMP v3 introduces strong security options by adding authentication and privacy (encryption), governed by three security levels. NPM supports the v3 User-Based Security Model, allowing a user to authenticate using MD5 or SHA and to encrypt traffic with DES or AES. The security levels available are noAuthNoPriv (no authentication, no privacy), AuthNoPriv (authentication but no privacy), and AuthPriv (authentication with privacy). This combination covers both authentication and encryption, which is why the best answer states that NPM supports user-based authentication and privacy with those three security levels.

The other statements don’t fit because SNMP v3 isn’t limited to authentication without privacy, nor to privacy without authentication, and NPM does support SNMP v3 (not just v2c).