Cisco Video Infrastructure Implementation — Question 21

Which two protocols are used in the traversing of media across a firewall through the Expressway? (Choose two.)

Answer options

• A. SIP
• B. Assent
• C. H.239
• D. H.460.18/19
• E. H.323

Correct answer: A, E

Explanation

The correct answers are A (SIP) and E (H.323) because these protocols are designed for signaling and media transport in VoIP communications, making them suitable for traversing firewalls. Options B (Assent) is not a recognized protocol for this purpose, while C (H.239) is related to data sharing but not specifically for media traversal, and D (H.460.18/19) is a NAT traversal solution but not directly for media transport.