156-315.81.20 Advanced VPN Design Practice Question
Which mechanism does Check Point use to allow VPN users to access resources using a single virtual IP address while hidden behind a gateway?
⚠ Common exam trap
Candidates often confuse the virtual IP assignment mechanism with NAT. While NAT is involved, the specific Check Point feature that allows the client to appear as a local host is Office Mode.
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
✓
Office Mode.
Office Mode allows the security gateway to assign an internal virtual IP address to the remote access client. By doing this, the client appears as if it is physically on the internal network. This simplifies policy creation, as the administrator can write firewall rules using the user's specific virtual IP address rather than the client's actual public IP, ensuring consistent security and access control.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Dynamic NAT mapping on the remote client.
Why it's wrong here
Dynamic NAT occurs on the gateway, not the client. The client does not perform NAT for the tunnel connection. Office Mode provides a virtual address from an internal pool managed by the gateway, which is a different architectural concept than standard client-side network address translation.
- ✓
Office Mode.
Why this is correct
Office Mode is the standard feature for assigning an internal virtual IP address to remote users. This allows the gateway to manage traffic for the client seamlessly and permits the use of internal IP-based security rules, which simplifies the management of user access across the VPN tunnel.
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Transparent Mode VPN.
Why it's wrong here
Transparent Mode refers to how the firewall sits in the network (Layer 2), not how a VPN client is assigned an IP. It is a deployment scenario for the gateway itself, unrelated to the virtual IP assignment process used to identify remote access VPN clients.
- ✗
Client-side proxy forwarding.
Why it's wrong here
Proxy forwarding is used for web traffic redirection and does not provide an internal virtual network address to the VPN client. It lacks the ability to map local internal network identities, which is exactly what Office Mode accomplishes for the remote access VPN environment.
About these practice questions
This 156-315.81.20 question is part of Courseiva's 210-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Check Point exam blueprint
This 156-315.81.20 practice question is part of Courseiva's free Check Point 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 156-315.81.20 exam.