Online Access Free JN0-680 Practice Test

Referring to the exhibit, SW-3 and SW-4 have been configured for mixed-mode VCF and added to the VCF. After cabling the new devices into the VCF, you notice that SW-3 automatically joins the VCF, whereas SW-4 does not.
Why are SW-3 and SW-4 behaving this way? (Choose two.)

• A.By default, EX4300 QSFP+ ports are enabled as VCPs.
• B.By default, EX4300 QSPF+ ports are not enabled as VCPs.
• C.By default, QFX5100 ports are enabled as VCPs.
• D.By default, QFX5100 ports are not enabled as VCPs.

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.Power off all of the VCF members and power up the spines before powering up the leafs.
• D.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.

You are building a DCI solution and need both a Layer 2 solution and a Later 3 solution for different workloads within your data centers.
What are two reasons why MPLS would be used a transport for this DCI solution? (Choose two.)

• A.MPLS allows for any-to-any connectivity allowing for both Layer 2 and Layer 3 DCIs.
• B.The fast failover capabilities of MPLS nodes can be accomplished in a recovery time that is equivalent to 50 ms or better.
• C.MPLS allows you to natively runnel your own Layer 2 traffic through the service provided
  L3VPN.
• D.MPLS allows you to interconnect multiple data centers over a public IP network.

Referring to the exhibit, R1 and R2 are QFX5100 Series devices acting as VXLAN Layer 2
Gateways using PIM-SM signaling for the same VXLAN segment (VNI 5100).
The multicast group assigned to VNI 5100 is 239.0.0.1. R1 currently has an entry in its MAC table for Host B.
In this scenario. how will R1 react to receiving the Ethernet frame from Host A?

• A.R1 will send a VXLAN encapsulated Ethernet frame using 10.1.1.1 as the destination address.
• B.R1 will send a VXLAN encapsulated Ethernet frame using 10.2.2.2 as the destination address.
• C.R1 will send a VXLAN encapsulated Ethernet frame along the source-based multicast tree using 239.0.0.1 as the destination address.
• D.R1 will send a VXLAN encapsulated Ethernet frame along the RP-based multicast tree using 239.0.0.1 as the destination address.

You are asked to design a deployment plan for a large number of QFX Series switches using zero touch provisioning (ZTP). The ZTP deployment plan must ensure all switches are upgraded to the desired software version.
Which DHCP option are suboption combination would be used to accomplish this task?

• A.DHCP options 66 with a supoption of 00
• B.DHCP options 43 with a supoption of 03
• C.DHCP options 66 with a supoption of 03
• D.DHCP options 43 with a supoption of 00