350-701 Network Security Practice Question
An administrator is configuring a site-to-site IKEv2 VPN between two Cisco ASAs. Which configuration component defines the encryption and authentication algorithms for the IPsec SA?
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
✓
Transform set
The transform set specifies the IPsec SA parameters (encryption, authentication, etc.). IKEv2 uses proposals and transforms within the transform set.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Crypto map
Why it's wrong here
Crypto map binds the policy to an interface and specifies the transform set, but does not define algorithms itself.
- ✗
IPsec profile
Why it's wrong here
IPsec profile is used in IKEv2 but the transform set still defines the algorithms.
- ✗
ISAKMP policy
Why it's wrong here
ISAKMP policy is for IKE phase 1, not IPsec SA.
- ✓
Transform set
Why this is correct
Correct; transform set defines the IPsec security protocols and algorithms.
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.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-701 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 350-701 exam.