Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 359

What is the purpose of using an Expressway-C and Expressway-E pair in Cisco Collaboration Edge preferred architecture?

Answer options

• A. to provide internet connectivity and firewall traversal for voice and video
• B. to block access to ports 5060 and 5061
• C. to allow access on internal devices for management
• D. to provide internet connectivity via PSTN router

Correct answer: A

Explanation

The correct answer is A, as the Expressway-C and Expressway-E are designed to facilitate secure communication over the internet, enabling voice and video services while also handling firewall traversal. Options B, C, and D do not accurately represent the primary role of these components in the Cisco Collaboration Edge architecture.