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300-410 Practice Question: Which TWO statements about SNMPv3 security models…
Which TWO statements about SNMPv3 security models are true? (Choose TWO.)
⚠ Common exam trap
Cisco often tests the misconception that authNoPriv includes encryption or that the 'priv' keyword disables authentication, leading candidates to confuse the purpose of the 'auth' and 'priv' keywords in the snmp-server group command.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The noAuthNoPriv security level provides no authentication and no encryption.
SNMPv3 defines three security levels. The noAuthNoPriv level uses a community-string-like mechanism without authentication or encryption, making it the least secure option. This is correct because it matches the RFC 3414 definition where no authentication and no privacy (encryption) are applied.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The noAuthNoPriv security level provides no authentication and no encryption.
Why this is correct
This is the least secure level, often used for read-only access.
- ✓
The authPriv security level requires both authentication and encryption.
Why this is correct
Provides the highest security with both MD5/SHA authentication and DES/AES encryption.
- ✗
The authNoPriv security level uses encryption but no authentication.
Why it's wrong here
authNoPriv uses authentication but no encryption; encryption is only in authPriv.
- ✗
SNMPv3 always requires encryption for all security levels.
Why it's wrong here
Encryption is optional; noAuthNoPriv and authNoPriv do not use encryption.
- ✗
The 'priv' keyword in the snmp-server group command disables authentication.
Why it's wrong here
The 'priv' keyword enables encryption, but authentication is still required.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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