Oracle
1Z0-404 · Question #62
1Z0-404 Question #62: Real Exam Question with Answer & Explanation
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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
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