Juniper JN0-681 Online Practice Questions and Exam Preparation

Juniper JN0-681 Online Questions & Answers

• Question 1:

  What are two valid types of VXLAN signaling? (Choose two.)

  A. EVPN
  B. RSVP
  C. RSTP
  D. MPLS
  A. EVPN
  D. MPLS

• Question 2:

  You are building a new IP fabric data center underlay network and want to ensure predictable load-balancing behavior for traffic traversing the fabric. What are two approaches you should take to satisfy the requirement in this scenario? (Choose two.)

  A. Ensure that all uplinks are 40GbE.
  B. Ensure that every leaf node has a link to every other leaf node.
  C. Ensure that every leaf node has an uplink to every spine node.
  D. Ensure that all spine devices are the same switch model.
  C. Ensure that every leaf node has an uplink to every spine node.
  D. Ensure that all spine devices are the same switch model.

• Question 3:

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

• Question 4:

  Host1 and host2 are connected to an EVPN signaled VXLAN overlay, and must have Layer 3 connectivity. The VNI and VLAN assignments are shown in the exhibit.

  

  In this scenario, which two statements are true? (Choose two.)

  A. The ESI assigned to the host1 link will be different from the ESI assigned to the host2 link.
  B. The VNI assigned to the host1 link must be the same as the VNI assigned to the host2 link.
  C. A Layer 3 gateway can be configured on the spine devices.
  D. A Layer 3 gateway can be configured on the leaf devices.
  C. A Layer 3 gateway can be configured on the spine devices.
  D. A Layer 3 gateway can be configured on the leaf devices.

• Question 5:

  What are three advantages of using MPLS for data center interconnects? (Choose three.)

  A. dedicated MPLS backbones for Layer 2 and Layer 3 DCIs
  B. any-to-any connectivity
  C. traffic engineering
  D. dedicated connections between customer sites
  E. sub 50 ms failover times
  A. dedicated MPLS backbones for Layer 2 and Layer 3 DCIs
  C. traffic engineering
  E. sub 50 ms failover times

• Question 6:

  Which protocol is used between VCF member devices to create a loop-free topology?

  A. LLDP
  B. MSTP
  C. RSTP
  D. VCCP
  D. VCCP

• Question 7:

  You have a site with thousands of MAC addresses multihomed to two leaf nodes in an EVPN VXLAN.

  In this scenario, which EVPN feature provides fast network convergence in the event of a leaf node link failure?

  A. BGP Additional Paths
  B. Bidirectional Forwarding Detection
  C. Ethernet Autodiscovery
  D. Fast reroute
  C. Ethernet Autodiscovery

• Question 8:

  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
  D. as-override

• Question 9:

  Your manager asks you to secure ARP and DHCP traffic across your local Ethernet links. In this scenario, which technology will accomplish this task?

  A. SSL
  B. a firewall filter
  C. IPsec
  D. MACsec
  D. MACsec

• Question 10:

  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.
  B. Configure the auto-sw-update parameter on the VCF before inserting new line cards.
  D. Set the Virtual Chassis as auto-provisioned before the line cards are inserted.