Online Access Free JN0-680 Exam Questions

You are building a mixed-mode Virtual Chassis with two QFX5100-24Qs, four QFX3500-
48s, two EX4600-40Fs and two EX4300-48Ts. The Virtual Chassis will not provision.
In this scenario. which statement is correct?

• A.Mixed-mode Virtual Chassis only allows for eight members.
• B.EX4600s must be preprovisioned as the master and backup.
• C.EX4600s are only allowed with EX4300s.
• D.QFX3500s are not allowed in mixed mode.

Referring to the exhibit, R1 and R2 are QFX5100s and are acting as VXLAN Layer 2
Gateways for VLAN 100 using PIM-SM signaling. R2 currently has only the (*.G) state established for VNI 5100.
Which event will cause R2 to establish the (S,G) state for VNI 5100 using R1 as the multicast source?

• A.when R2 first learns the MAC address of a locally attached host
• B.when R2 receives broadcast, multicast, or unknown unicast from Host A
• C.when R2's VNI 5100 configuration is committed
• D.when R1 receives a known unicast Ethernet frame from Host A

Which statement is true for an IP Fabric to be called a Clos IP Fabric?

• A.Spanning tree must be completely eliminated.
• B.The protocol used is OSPF, IS-IS, or BGP.
• C.The number of uplinks from a leaf device equals the number of spine devices.
• D.Spine devices must be connected in a full mesh.

What are three benefits of EVPN that would improve the current E-line, E-LAN, and E-Tree delivery? (Choose three.)

• A.network resiliency between edge nodes
• B.efficient security provisioning
• C.greater Multiprotocol Label Switching scale
• D.integrated L2/L3 connectivity
• E.native support for multihoming

You have built a mixed-mode VCF consisting of two QFX5100-24Qs as spines, two
QFX5100-48S as leaf nodes, and one EX4300 as a leaf node. The VCF is working for all devices, except the EX4300 40GbE fabric links will not join the VCF.
In this scenario, what must be corrected to solve the connectivity problem?

• A.Zeroize the EX4300, cleat all the tables with the clear ethernet-switching tables command on all members, and reissue the request virtual-chassis mixed-mode command.
• B.Reboot all of the VCF members.
• C.Turn off authonegotiation on the EX4300 and the attached spine interfaces, and then use the request virtual-chassis vc-port set command on the spine ports connected to the
  EX4300.
• D.Power off all of the VCF members and power up the spines before powering up the leafs.