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300-420 · Question #71
300-420 Question #71: Real Exam Question with Answer & Explanation
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WAN for Enterprise Networks
Question
What two features are benefits of using GRE tunnels with IPsec over using an IPsec tunnel alone in building-to-building site-to-site VPNs? (Choose two.)
Options
- Aallows dynamic routing securely over the tunnel
- BIKE keepalives are unidirectional and sent every ten seconds
- Creduces IPsec headers overhead since tunnel mode is used
- Dsupports non-IP traffic over the tunnel
- Euses Virtual Tunnel Interface (VTI) to simplify the IPsec VPN configuration
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Topics
#GRE over IPsec#Site-to-Site VPN#Dynamic Routing#Encapsulation