Zscaler Tunnel 2.0 is a proprietary, packet-based tunneling protocol designed to forward all IP traffic from an endpoint to the Zscaler Zero Trust Exchange. This comprehensive approach is not limited to specific ports or application protocols. It encapsulates all TCP and UDP traffic, regardless of the port number, as well as other IP-based protocols like ICMP. This enables the Zscaler cloud to perform deep packet inspection and apply security policies to all user traffic, providing a complete security posture consistent with Zero Trust principles.

A. This is incorrect because Tunnel 2.0 is not limited to specific web ports; it forwards all IP traffic from the device.

B. This is incorrect as it only mentions web and DNS traffic, while Tunnel 2.0 is designed to handle all protocols.

D. This is incorrect because it lists only a subset of protocols, failing to capture the "all ports and protocols" capability of Tunnel 2.0.

1. Zscaler Official Documentation

Help Portal: In the article "About Z-Tunnel 2.0

" it is stated: "Z-Tunnel 2.0 is the default tunneling protocol for Zscaler Client Connector. It is a proprietary tunneling protocol that encapsulates all IP traffic

including TCP

UDP

and ICMP

and forwards it to the Zscaler cloud." (Source: Zscaler Help Portal

"About Z-Tunnel 2.0"

Section: "Z-Tunnel 2.0 Overview").

2. Zscaler Official Documentation

Help Portal: The "Configuring Forwarding Profiles for Zscaler Client Connector" guide specifies the behavior of different forwarding methods. For the "Tunnel" method

which uses Z-Tunnel 2.0

it states: "When you select Tunnel as the forwarding method

Zscaler Client Connector uses Z-Tunnel 2.0 to forward all port and protocol traffic to the Zscaler service." (Source: Zscaler Help Portal

"Configuring Forwarding Profiles for Zscaler Client Connector"

Section: "Windows and macOS Forwarding Options").