JN0-681 Online Practice Questions and Answers

You are configuring VXLAN, and you must ensure that all switches for the multicast groups advertise their existence and learn about other VTEPs.

In this scenario, which protocol will accomplish this task?

A. OSPF

B. BGP

C. EVPN

D. PIM

You work in a data center where VMs and hosts are frequently moved. Your design needs to eliminate inefficient traffic flows.

In this scenario, which two solutions will satisfy this requirement? (Choose two.)

A. VXLAN

B. EVPN

C. VMTO

D. VPLS

When using EBGP as the underlay protocol for your IP fabric architecture, which two statements are true? (Choose two.)

A. Spine nodes only peer to leaf nodes.

B. Leaf nodes peer to both spine and leaf nodes.

C. Leaf nodes only peer to spine nodes.

D. Spine nodes peer to both leaf and spine 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.

You are asked to enable plug-and-play for future line card switches in an active VCF without making any future Junos configuration changes. You are also required to ensure that all new line cards are automatically upgraded to the correct Junos version without any manual intervention.

In this scenario, which two actions will accomplish this task? (Choose two.)

A. Ensure that the newly inserted line card's MAC addresses are present in the DHCP configuration for ZTP.

B. Configure the auto-sw-update parameter on the VCF before inserting new line cards.

C. Set the Virtual Chassis as pre-provisioned before the line cards are inserted.

D. Set the Virtual Chassis as auto-provisioned before the line cards are inserted.

Your colleague has begun working on the base configuration for an active-active multihomed EVPN connection shown in the exhibit.

Which two actions will ensure a successful implementation? (Choose two.)

A. Change the ESI mode on PE1 to single-active.

B. Change the ESI mode on PE2 to all-active.

C. Change the ESI value on the PE2 device to 00:00:00:00:00:00:00:00:00:00.

D. Change the ESI value on the PE1 device to 00:22:44:66:88:00:22:44:66:88.

What are two methods used to scale an IBGP IP Fabric? (Choose two.)

A. spanning tree

B. redundant trunk groups

C. route reflection

D. confederations

You have configured MP-IBGP to support EVPN for your overlay network. However, you are not seeing the expected routes on your edge devices.

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

A. The family evpn signaling parameter must be configured on the remote peer.

B. Graceful restart must be disabled for this session.

C. The group types on both devices should be set to external.

D. The family 12vpn signaling must be configured on the local peer.

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.

Devices spine1 and spine2 have been configured as distributed Layer 3 gateways in the VXLAN topology, and devices leaf1 and leaf3 have been configured as Layer 2 gateways. Device host1 must be able to communicate with device host2.

Referring to the exhibit, which two statements are true? (Choose two.)

A. An IRB interface must be configured on devices leaf1 and leaf2.

B. Traffic from host1 to host2 will transit the VXLAN tunnel from leaf1 to leaf3.

C. Traffic from host1 to host2 will transit a VXLAN tunnel to spine1 or spine2, then a VXLAN tunnel from spine1 or spine2 to leaf3.

D. An IRS interface must be configured on devices spine1 and spine2.