Which configuration option is suitable for explicit mode deployment?
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A. B. C. D.A.
In explicit-mode deployment, users will point the proxy setting to WSA.
This can be done by pointing directly to WSA or via a PAC (Proxy Auto-Config) file.
In the context of Cisco Web Security Appliance (WSA) deployment, explicit mode refers to the configuration where the client's web traffic is explicitly redirected to the WSA proxy server through a client-side proxy configuration. In this mode, the client browser is configured to send HTTP/HTTPS traffic to the WSA appliance instead of directly accessing the Internet.
Among the configuration options listed in the question, PAC (Proxy Auto-Configuration), WCCP (Web Cache Communication Protocol), ITD (Intelligent Traffic Director), and PBR (Policy-Based Routing), only PAC and WCCP are suitable for explicit mode deployment.
PAC is a file that contains JavaScript code used by the client browser to automatically configure the proxy settings. The PAC file is hosted on a web server and is accessible by the client browsers. With PAC, the WSA proxy settings are automatically configured by the client browser, and the client's web traffic is redirected to the WSA appliance.
WCCP is a protocol that allows network devices to redirect web traffic to a web cache engine, such as the WSA appliance, for caching and filtering purposes. In WCCP deployment, the network device intercepts the client's web traffic and redirects it to the WSA appliance using WCCP. WCCP is a transparent mode deployment and doesn't require any client-side configuration.
ITD and PBR are not suitable for explicit mode deployment. ITD is used for load balancing and traffic management, while PBR is used to apply different routing policies based on various criteria such as source/destination IP address or protocol. Both ITD and PBR are network-based deployments and require configuration on the network devices. They do not work with client-side proxy configurations.
In summary, for explicit mode deployment with Cisco WSA, the suitable configuration options are PAC and WCCP, while ITD and PBR are not appropriate.