Juniper JN0-682 Questions Answers

Increasing the physical MTU on all ports of devices participating in a VXLAN EVPN signaling network is essential. VXLAN encapsulation adds additional bytes to the Ethernet frame, which can lead to packet drops if the MTU is not large enough to accommodate the increased frame size. Ensuring that the physical MTU is set correctly on all devices allows for successful transmission of VXLAN encapsulated packets.

References:

• Juniper Networks - Understanding VXLANs

B. Virtual Router Redundancy Protocol (VRRP) ensures high availability by allowing multiple routers to work together to provide network resilience.

C. Graceful Routing Engine switchover (GRES) allows for the seamless transition of control plane functions between Routing Engines, ensuring continuous operation of the network.

D. Dual Routing Engines provide a hardware-based high-availability solution, where a backup Routing Engine takes over in case the primary fails, ensuring uninterrupted network service.

MACsec (Media Access Control Security) is the technology used to secure ARP and DHCP traffic across local Ethernet links. It provides secure, encrypted communication at the MAC layer, ensuring that traffic like ARP and DHCP is protected from eavesdropping and tampering.

References:

• Juniper Networks - MACsec Overview