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350-401 Practice Question: Which two statements about SNMPv3 security…
Which two statements about SNMPv3 security features are true? (Choose two.)
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 authNoPriv security level provides authentication using MD5 or SHA, but no encryption.
SNMPv3 provides both authentication and encryption. The authNoPriv level uses MD5 or SHA for authentication without encryption; noAuthNoPriv uses no security; authPriv provides both authentication and encryption. The engine ID is required for SNMPv3 user configuration and is used to generate the localized key.
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 authNoPriv security level provides authentication using MD5 or SHA, but no encryption.
Why this is correct
Correct because authNoPriv uses a hash algorithm for authentication but does not encrypt the SNMP payload.
- ✗
The noAuthNoPriv security level provides both authentication and encryption.
Why it's wrong here
Incorrect because noAuthNoPriv provides no authentication and no encryption; it is the least secure level.
- ✓
The authPriv security level provides authentication using MD5 or SHA, and encryption using DES or AES.
Why this is correct
Correct because authPriv combines authentication with encryption (DES, 3DES, or AES) for maximum security.
- ✗
SNMPv3 users are identified solely by the community string, similar to SNMPv2c.
Why it's wrong here
Incorrect because SNMPv3 uses a user-based security model (USM) with a username and optional engine ID, not community strings.
- ✗
The SNMP engine ID is optional and only used for debugging purposes.
Why it's wrong here
Incorrect because the engine ID is mandatory for SNMPv3; it is used to generate the localized authentication and encryption keys.
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Last reviewed: Jun 18, 2026
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