mediumMultiple Choice
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show snmp host
Host: 192.168.1.100 Port: 162 Timeout: 1.5 seconds Retries: 3 Version: 2c Community: PUBLIC
Host: 192.168.1.200 Port: 162 Timeout: 3 seconds Retries: 5 Version: 3 User: admin Security level: authPriv
Based on this output, which statement is correct?
⚠ Common exam trap
Cisco often tests the distinction between SNMPv2c community strings and SNMPv3 users/security levels, leading candidates to mistakenly associate a community string or user with the wrong host or version.
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
✓
SNMP traps sent to 192.168.1.200 will be encrypted.
The SNMPv3 security level 'authPriv' for the host at 192.168.1.200 means authentication and privacy (encryption) are both enabled. SNMPv3 with authPriv uses the User-based Security Model (USM) to encrypt the entire SNMP packet payload, including the trap data, using protocols like AES or DES. This ensures that traps sent to 192.168.1.200 are encrypted.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SNMP traps sent to 192.168.1.200 will be encrypted.
Why this is correct
SNMPv3 with authPriv enforces both authentication (SHA/MD5) and privacy (AES/DES) on notifications, so traps to 192.168.1.200 are encrypted. The 192.168.1.100 host uses SNMPv2c, which transmits community strings and payloads in cleartext, satisfying the stem's requirement to identify which destination is cryptographically protected.
- ✗
Both hosts use the same SNMP version.
Why it's wrong here
The output lists Version 2c for 192.168.1.100 and Version 3 for 192.168.1.200, so the versions differ. It is tempting because both entries share port 162 and are configured as notification hosts, but version is stated per host and is not a shared attribute.
- ✗
The host at 192.168.1.100 uses SNMPv3 with user 'admin'.
Why it's wrong here
The 192.168.1.100 entry lists Version 2c with a community string, so it cannot use SNMPv3 or the 'admin' user; that user and authPriv level belong to the 192.168.1.200 host. SNMPv3's user-based authentication is genuinely configured here, but only on the second host.
- ✗
Traps to 192.168.1.200 will be sent with community string 'admin'.
Why it's wrong here
Host 192.168.1.200 uses SNMPv3 with user 'admin' and authPriv, which authenticates and encrypts; no community string applies to v3. It is tempting because 'admin' appears in that entry, but it is a username, not a community.
Quick reference
Symmetric Encryption Algorithm Comparison
| Algorithm | Key Size | Block Size | Status | Notes |
|---|---|---|---|---|
| AES-128 | 128-bit | 128-bit | Current standard | NIST approved; WPA3, TLS |
| AES-256 | 256-bit | 128-bit | Current standard | Preferred for sensitive / govt data |
| 3DES | 112-bit effective | 64-bit | Deprecated (2023) | Replaced by AES |
| DES | 56-bit | 64-bit | Broken | Cracked in < 24 h; never deploy |
| ChaCha20 | 256-bit | Stream cipher | Current | TLS 1.3, WireGuard |
Go deeper
Related to this question
Learn chapter
Device Management and Network Monitoring (SNMP, Syslog, NetFlow)
Key term
SNMPv3 Configuration
SNMPv3 configuration is the process of setting up the third version of the Simple Network Management Protocol on network devices to securely monitor and manage them using authentication and encryption.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 300-410 exam.