Which two functions are provided by a web proxy device? (Choose two.)
- caching of HTTP messages
- scanning a web server for related contents
- translating HTTP messages to FTP and SMTP messages
- enabling HTTP transfers across a firewall
- encrypting HTTP packets transmitted between web clients and web servers
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Explanation & Hint: HTTP proxies act as both servers and clients. Proxies make requests to web servers on behalf of other web clients. Proxies enable HTTP transfers across firewalls and support the caching of HTTP messages. |