Zscaler Client Connector's Tunnel 2.0 uses a packet#filter based tunnel that encapsulates all IP traffic - both TCP and UDP on any port, plus ICMP - to the Zero Trust Exchange

URL Filtering remains a core first line of web defense even in a cloud and HTTPS-heavy world. It controls access by category, risk, and destination before deeper controls such as DLP, sandboxing, or isolation are applied. TLS inspection improves visibility; it does not make URL Filtering obsolete. Option A (URL Filter is the most commonly used web filtering technique in the arsenal. It acts as first line of defense) is correct because URL Filtering is still a commonly used first-line web-filtering control.
Why the other options are incorrect:
B). In a modern cloud world, access to all Internet sites and cloud applications should be granted by default.
URL Filtering is no longer needed: URL Filtering controls web destinations by category, URL, risk, and action such as allow, block, caution, or isolate.
C). URL Filtering has been replaced by CASB functionality through blocking access to all Internet sites and only allowing a few corporate applications: Out-of-band CASB works through SaaS APIs to inspect or remediate content already sitting inside cloud applications.
D). URL Filtering is outdated and no longer needed. The rise of HTTPS leads renders URL Filtering ineffective as all traffic is encrypted: URL Filtering controls web destinations by category, URL, risk, and action such as allow, block, caution, or isolate.

File Type Control reduces exposure by limiting which file categories users can download or upload, especially from risky or untrusted destinations. It is not a monitoring score or administrative RBAC control; it is a content-control policy that directly limits malicious or high-risk file exposure. Option C (File type Controls) is correct because File Type Control can block dangerous content classes before they reach the endpoint.
Why the other options are incorrect:
A). Role Based Access control (RBAC): RBAC limits administrator privileges by role and scope; it does not inspect user web content or files.
B). Bandwidth Controls: Bandwidth Control shapes outbound traffic to manage congestion and prioritize business use.
D). Zscaler Digital Experience: ZDX monitors experience and helps troubleshoot performance. It does not limit malicious file/content exposure through policy enforcement.

The Experience Center delivers a single-pane console for managing internet and SaaS access, private applications, digital experience monitoring, and endpoint agent configurations.

Z-Tunnel with Local Proxy creates a local loopback proxy on the endpoint. Applications send traffic to that loopback listener, and Client Connector then forwards the traffic toward Zscaler according to profile and policy. Option C (ZTunnel with Local Proxy) is correct because the loopback address behavior is specific to ZTunnel with Local Proxy.
Why the other options are incorrect:
A). Enforced PAC mode: Enforced PAC pushes proxy rules to the system or browser. The loopback forwarding behavior is specifically Tunnel with Local Proxy.
B). ZTunnel - Packet Filter Based: Z-Tunnel is Client Connector tunneling used to steer endpoint traffic to the Zscaler cloud.
D). ZTunnel - Route Based: Z-Tunnel is Client Connector tunneling used to steer endpoint traffic to the Zscaler cloud.