Oracle
1Z0-404 · Question #62
How does the Session Border Controller ensure that a pinhole is kept open for persistent communication to a SIP endpoint behind a NAT device?
The correct answer is D. by sending Address Resolution Protocol (ARP) requests at a defined frequency. Explanation/Reference:
SBC Feature Configuration
Question
How does the Session Border Controller ensure that a pinhole is kept open for persistent communication to a SIP endpoint behind a NAT device?
Options
- Aby changing the expires= parameter to a defined value in 200 OK responses to REGISTERs
- Bby changing the expires= parameter to a defined value in 200 OK responses to INVITEs
- Cby issuing PINGs to the endpoint's NAT address
- Dby sending Address Resolution Protocol (ARP) requests at a defined frequency
- Eby sending messages at a defined frequency
How the community answered
(27 responses)- A4% (1)
- B11% (3)
- C7% (2)
- D78% (21)
Explanation
Explanation/Reference:
Topics
#NAT traversal#pinhole keepalive#HNT#SIP registration
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