mediumMultiple ChoiceObjective-mapped
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 crypto map Crypto Map "VPN-MAP" 10 ipsec-isakmp
Peer = 10.1.1.2 Extended IP access list 100
access-list 100 permit ip 10.1.1.0 0.0.0.255 192.168.1.0 0.0.0.255
Current peer: 10.1.1.2 Security association lifetime: 4608000 kilobytes/3600 seconds PFS (Y/N): N Transform sets={ESP-AES256-SHA,}
Interfaces using crypto map VPN-MAP:
Tunnel0
Based on this output, which statement is correct?
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 crypto map is applied to interface Tunnel0 and uses ACL 100 to define interesting traffic.
The crypto map is applied to Tunnel0 and uses ACL 100 to match traffic from 10.1.1.0/24 to 192.168.1.0/24. This is a typical site-to-site VPN configuration.
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 crypto map is applied to interface Tunnel0 and uses ACL 100 to define interesting traffic.
Why this is correct
The output shows Tunnel0 uses this crypto map and ACL 100 defines the traffic.
- ✗
Perfect Forward Secrecy (PFS) is enabled.
Why it's wrong here
PFS is set to 'N' (no).
- ✗
The crypto map uses dynamic IPsec peer discovery.
Why it's wrong here
The peer is statically configured as 10.1.1.2.
- ✗
The crypto map is not applied to any interface.
Why it's wrong here
It is applied to Tunnel0.
Visual reference
Quick reference
VPN Protocol Comparison
| Protocol | Port | Encryption | Authentication | Use Case |
|---|---|---|---|---|
| IKEv2 / IPsec | UDP 500 / 4500 | AES-256 | Certificates / PSK | Site-to-site & remote access |
| SSL / TLS VPN | TCP 443 | TLS 1.3 | Certificates / MFA | Clientless remote access |
| L2TP / IPsec | UDP 1701 | AES (IPsec) | PSK / Certificates | Legacy remote access |
| WireGuard | UDP 51820 | ChaCha20 | Public keys | Modern high-performance VPN |
| PPTP | TCP 1723 | MPPE (weak) | MS-CHAPv2 | Legacy — avoid in production |
PPTP is considered insecure. IKEv2/IPsec and SSL VPN are the current recommended options.
Go deeper
Related to this question
About these practice questions
Courseiva writes every 300-410 question from scratch — 1,966 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more way this is tested on 300-410
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A network engineer runs the following command to troubleshoot an IPsec Site-to-Site VPN issue: R1# show crypto map Crypto Map "CMAP" 10 ipsec-isakmp Peer = 192.168.2.2 Extended IP access list 101 access-list 101 permit ip 192.168.1.0 0.0.0.255 192.168.2.0 0.0.0.255 Current peer: 192.168.2.2 Security association lifetime: 4608000 kilobytes/3600 seconds PFS (Y/N): N Transform sets={myset, } Interfaces using crypto map CMAP: Tunnel0 What does this output indicate?
easy- A.The crypto map is misconfigured because it uses an extended ACL with source and destination subnets.
- ✓ B.The crypto map is correctly configured for a site-to-site VPN with the peer 192.168.2.2.
- C.The crypto map is missing the transform set.
- D.The crypto map should be applied to the physical interface instead of the tunnel.
Why B: The output shows a properly configured IPsec site-to-site VPN crypto map. It includes a peer (192.168.2.2), an extended ACL (101) that correctly matches the local and remote subnets (192.168.1.0/24 and 192.168.2.0/24), a transform set (myset), and is applied to Tunnel0, which is typical for a site-to-site VPN. The security association lifetime and PFS settings are also present, confirming a valid configuration.
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.