JN0-681 Online Practice Questions and Answers

Referring to the exhibit, not all routes are being exchanged by EBGP peers.

In this scenario, which BGP parameter would solve this problem?

A. multihop

B. multipath

C. multipath multiple-as

D. as-override

A VXLAN adds 50 to 54 bytes of extra header information to an Ethernet frame. In this scenario, how would you accommodate this increase?

A. Decrease the number VXLANs used.

B. Increase the MTU on the physical interface connected to the VXLAN network.

C. Only use switches as VTEPs.

D. Increase the MTU on the VTEP interface connected to the VXLAN network.

A client with five data centers spread around the country uses MPLS L2VPNs to provide point-to-point data center Interconnects between each data center in a full-mesh network. The client is considering an MPLS EVPN implementation.

In this scenario, what are three advantages of using MPLS EVPN interconnects? (Choose three.)

A. They provide for static configuration that does not require a Dynamic Routing Protocol.

B. They provide for lower transmission latency.

C. They provide for a local proxy ARP/ND resolution.

D. They provide for point-to-multipoint connectivity.

E. They provide for MAC learning in the control plane.

You want to configure redundant Layer 3 gateways.

In this scenario, which two Juniper best practices would accomplish this task? (Choose two.)

A. configuring both IRB interfaces manually with the same MAC address.

B. allowing Junos to dynamically create the virtual IP address of the IRB interface.

C. configuring both IRB interfaces manually with the same IP address.

D. allowing Junos to dynamically create the virtual MAC address of the IRB interface.

You have configured a new MC-LAG connection to a host. After committing the configuration, the MC-LAG link is not functioning properly.

Referring to the exhibit, how would you solve this problem?

A. Change the chassis-id on qfx1 to 1.

B. Configure a system-id on qfx1 that is different from the system-id on qfx2.

C. Configure the status-control on qfx2 to active.

D. Change the mc-ae-id on qfx1 to 1.

Which two combinations are supported when configuring a Virtual Chassis Fabric? (Choose two.)

A. two spine nodes and 28 leaf nodes

B. four spine nodes and 20 leaf nodes

C. four spine nodes with 16 leaf nodes

D. two spine nodes and 16 leaf nodes

Which two statements define the use of route targets and route distinguishers in an EVPN? (Choose two.)

A. Route targets ensure that routes from different clients remain unique within the data center domain.

B. Route targets identify the VRF into which the route should be placed.

C. Route distinguishers ensure that routes from different clients remain unique within the data center domain.

D. Route distinguishers identify the VRF into which the route should be placed.

Which two statements are true about Virtual Chassis? (Choose two.)

A. The request virtual-chassis mode fabric reboot command will set the Virtual Chassis to fabric mode with similar devices.

B. The request virtual-chassis mode fabric reboot command will set the Virtual Chassis to mixed mode.

C. By default, Junos switches are in a non-mixed mode Virtual Chassis.

D. By default, Junos switches are in mixed mode Virtual Chassis.

You are deploying a VXLAN using EVPN signalling overlay network in your new data center. You are able to establish your MP-BGP peering sessions and see your EVPN routes, but traffic will not traverse the VXLAN using EVPN signalling overlay network.

What is a solution to this problem?

A. Increase the MTU on the logical VTEP source interface of all devices participating in VXLAN using EVPN signaling.

B. Enable the mtu-discovery feature on the MP-BGP peering sessions between all VXLANs using EVPN signalling peers.

C. Increase the protocol MTU on all devices participating in VXLAN using EVPN signalling.

D. Increase the physical MTU on all ports on all devices participating in VXLAN using EVPN signalling.

You are asked to configure VXLAN for your data center using multicast to exchange VTEP information.

In this scenario, which two configuration parameters must match on the VTEPs in the same VXLAN segment? (Choose two.)

A. multicast group

B. VLAN ID

C. routing instance name

D. VNI