JN0-680 Exam Questions

Which EVPN service consists of a single broadcast domain per EVPN instance?

Which two statements are correct when performing a unified ISSU? (Choose two.)

Referring to the exhibit, PE1 and PE2 are acting as MPLS Layer 3 VPN PEs to provide the DCI between DC1 and DC2, which are IP Fabrics. Leaf 1 and Leaf 2 are QFX5100 Series devices...

Referring to the exhibit, which two MAC addresses are learned from the local side of the MC-LAG link?

An EX9200 switch is acting as a Layer 3 VXLAN gateway. In this scenario. which action will allow you to communicate between two VLANs?

You are deploying a spine-and-leaf IP Fabric in your data center using EBGP. In this scenario, which three statements are true? (Choose three.)

VMs on Server-1 and Server-2 are on the same Layer 2 domain within a VCF and are sending traffic to each other. Referring to the exhibit, which three criteria are used when load-ba...

You are deploying MC-LAG as shown in the exhibit. Which statement is correct when using active/standby 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. What will cause R2 to send a (*.G) PIM Join towards t...

You are using IBGP to deploy an IP fabric. There are four spine devices, two of which are configured as route reflectors. You notice that the other two spines are not receiving all...

You are building an EVPN Data Center Interconnect. You must support multiple VLANs in a single EVPN instance. Which parameter provides this functionality?

Which statement is true about a Data Center Interconnect over an IP network?

You are deploying MC-LAG as shown in the exhibit. Which statement is correct when using active/active mode?

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...

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

The exhibit shows an output from a QFX5100 Series switch serving as an MC-LAG peer. Which two statements are true in this scenario? (Choose two.)

You are having management connectivity problems with a mixed-mode Virtual Chassis. Which statement is correct in this scenario?

Referring to the exhibit, what is the MAC address of the IRB interface on router PE1?

You are establishing an IP Fabric where your QFX10002-72Q spine devices are connecting to leaf devices. Each leaf is a Virtual Chassis comprised of ten EX4300s. What is the maximum...

You are deploying an IP Fabric in your new data center. You need to ensure that your servers have multiple active/active links for redundancy and load balancing. What are two metho...

Which three BGP messages pass EVPN information between devices? (Choose three.)

You created an IP Fabric based on IBGP. You noticed that ECMP load sharing is not working. In this scenario, what is the problem?

You have an EBGP-based IP Fabric. Why do you need an export policy on each leaf in this scenario?

You are configuring VXLAN on a network of QFX5100s, and are using the set vlans vlan100 vxlan command. unreachable-vtep-aging-timer 600 What does this command do?

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

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

Which protocol replicates forwarding information between MC-LAG peers?

Which two technologies provide Layer 2 services across data centers in two remote locations? (Choose two.)

Which statement is correct about EVPN Type 2 routers?

You must manually configure VXLAN on a QFX5100. Which protocol is required to perform this task?

Which two statements about VXLAN are true? (Choose 2)

Which 3 benefits do VXLANs offer to VLANs? (Choose 3)

Which two options are network consideration for common VXLAN deployment?(choose two)

You are implementing a Virtual Chassis using QFX5100s and EX4300s in your data center. In this scenario, which two statements are correct? (Choose two.)

A customer notices that all traffic is traveling over a single link within their partially meshed IP Fabric using IBGP. While troubleshooting, the customer notices that the configu...

A customer has a 3-stage Clos architecture with three spine devices as shown in the exhibit. If a single spine device fails, what percentage of the remaining bandwidth will be avai...

Referring to the exhibit, which hardware change would be made to the IP Fabric to ensure an exact 4:1 oversubscription ratio?

A customer has built a VXLAN using an EVPN signaling infrastructure with remote facilities with VXLAN using EVPN signaling connected to the Internet. The customer notices that the...

You have deployed a multicast server attached to a QFX5100 Series device serving as a VTEP. Which two statements are correct in this scenario? (Choose two.)

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

Referring to the exhibit, each leaf node is a QFX5100 acting as a VXLAN Layer 2 Gateway using EVPN signaling. Leaf 2 and Leaf 3 are both attached to the same EVPN Ethernet segment....

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...

Your server administrator asks you to preserve the inner VLAN tags of the frames coming from a Layer 2 VXLAN Gateway of the EVPN-enabled segment. Which two parameters must you add...

Which statement is valid for EVPN multihoming CE1 to PE1 and PE2 as shown in the exhibit?

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...

The MC-LAG group shown in the exhibit is providing high availability services for the directly connected servers. Where does Juniper Networks recommend you provide the backup liven...

You are deploying a VXLAN using EVPN signaling overlay network. PE1 and PE2 are multihomed to the connected CE device. You notice that the traffic is not load-balancing as expected...

In a preprovisioned mixed Virtual Chassis, which statement is correct about converting a 40Gbps QSFP+ to a Virtual Chassis port in an EX4300?

You are implementing a Virtual Chassis using QFX5100s and EX4300s in your data center. In this scenario, which three hardware capabilities are affected? (Choose three.)

You are developing an EVPN service between your data centers to enable Layer 2 stretch and Virtual Machine Traffic Optimization (VMTO) operations. In this scenario, which action mu...