According to the FortiSASE 25 Enterprise Administrator Study Guide, page 25, branch on-ramp deployment enables organizations to secure outbound internet traffic from branch locations by connecting their existing network infrastructure to FortiSASE.
Option A is correct: Branch on-ramp allows remote offices and branch locations to establish secure IPsec VPN tunnels between their FortiGate or supported third-party network devices and FortiSASE points of presence (PoPs). Traffic is forwarded through these tunnels, allowing FortiSASE to deliver cloud-based security inspection and enforcement.
The study guide explains that connected branches can benefit from Secure Internet Access (SIA), Secure SaaS Access (SSA), and Secure Private Access (SPA).
Option B is incorrect: Although branch on-ramp supports secure private application access, providing access through a bookmark portal is not its primary deployment benefit.
Option C is incorrect: Branch on-ramp provides secure network connectivity and traffic inspection. It is not designed primarily for endpoint inventory, administration, or lifecycle management.
Option D is incorrect: The study guide explicitly states that FortiClient installation is not required for branch edge-device deployments and that ZTNA tags are not supported in this configuration.
Therefore, branch on-ramp primarily enables organizations to extend FortiSASE cloud security services to branch offices and secure their internet-bound traffic.
Exact Source References:
FortiSASE 25 Enterprise Administrator Study Guide, page 25 — Thick Edge Use Case, including secure branch outbound traffic and branch on-ramp.
FortiSASE 25 Enterprise Administrator Study Guide, page 26 — FortiSASE Branch On-Ramp Configuration.
FortiSASE 25 Enterprise Administrator Study Guide, page 27 — Edge-Device Policies, explaining the lack of ZTNA tag support.