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JN0-682 Sample Questions Answers

Questions 4

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

Options:

A.

The host with the 00:0c:29:08:04:a0 MAC address is not reachable through a VTEP tunnel.

B.

The host with the 00:0c:29:e8:b7:39 MAC address is reachable through a VTEP tunnel.

C.

The host with the 00:0c:29:08:04:a0 MAC address is reachable through a VTEP tunnel.

D.

The host with the 00:0c:29:e8:b7:39 MAC address is not reachable through a VTEP tunnel.

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Questions 5

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.)

Options:

A.

A Layer 3 gateway can be configured on the leaf devices.

B.

The VNI assigned to the host1 link must be same as the VNI assigned to the host2 link.

C.

The ESI assigned to the host1 link will be different from the ESI assigned to the host link.

D.

A layer 3 gateway can be configured on the spine devices.

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Questions 6

You want to ensure high availability of the Junos devices in your data center. In this scenario, which three features would accomplish this task? (Choose three.)

Options:

A.

Multiple Spanning Tree Protocol

B.

Virtual Router Redundancy protocol

C.

graceful Routing Engine switchover

D.

Dual Routing Engineers

E.

Virtual private LAN service

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Questions 7

Exhibit.

You choose the EBGP fabric design as shown in the exhibit. In addition to a load-balancing policy, you want to ensure that the 10.1/16 prefix is sent to the leaf nodes.

Which two commands on the spine will accomplish this task? (Choose two.)

Options:

A.

loops 2

B.

as-override

C.

add-path send

D.

advertise-peer-as

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Questions 8

You have a two spine and four leaf CRB topology and you must ensure that the hosts connected

to the leaf devices have reachability to all IRB interface addresses, including the local spine IRB

addresses, and the virtual gateway address.

Which two configuration parameters must be used to accomplish this task? (Choose two.)

Options:

A.

Configure a spine-to-spine BGP peering as part of the overlay.

B.

Configure virtual-gateway-accept-data under the IRB interface.

C.

Configure a spine-to-spine EVPN peering as part of the routing instance.

D.

Configure proxy-macip-advertisement under the IRB interface.

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Questions 9

You are considering deploying a MAC-VRF type routing instance with a VLAN-bundle service

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

Options:

A.

It can be implemented in a bridge overlay architecture.

B.

VLAN normalization is supported.

C.

Multiple VLAN IDs per EVI are supported.

D.

It can be implemented in an ERB architecture.

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Questions 10

Which two statements describe MAC address learning for VPLS and EVPN? (Choose two.)

Options:

A.

VPLS learns MAC addresses in the data plane

B.

EVPN learns MAC addresses in the data plane

C.

EPLS learns MAC addresses in the control plane

D.

EVPN learns MAC addresses in the control plane

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Questions 11

You are asked to configure your IP fabric with OSPF as the underlay routing protocol.

Which two statements are correct about this implementation? (Choose two.)

Options:

A.

Each host-connected interface of the leaf node is included as passive in the OSPF configuration.

B.

Each host-connected interface of the leaf node is included in the OSPF configuration.

C.

Each spine-connected interface of the leaf node is included as passive in the OSPF configuration.

D.

Each spine-connected interface of the leaf node is included in the OSPF configuration.

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Questions 12

An EVPN-signaled VXLAN overlay has been deployed in the network shown in the exhibit. Host1

is a bare metal server, and is dual-homed to the network. The IP addresses 10.1.1.1/24 and 10.1.1.2/24 are assigned to the same physical NIC, and no virtualization is configured on the server.

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

Options:

A.

The MAC address associated with 10.1.1.1/24 and 10.1.1.2/24 will be same when advertised to leaf3.

B.

Traffic from IP address 10.1.1.1/24 must traverse the VXLAN network to reach IP address 10.1.1.2/24

C.

The connection host1 to devices leaf1 and leaf2 must be configuration a LAG.

D.

The ESI assigned to the host1 link must be the as the ESI assigned to the leaf2 host1 link.

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Questions 13

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

Options:

A.

Route distinguishers ensure that routes from different client remain unique within the datacenter domain

B.

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

C.

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

D.

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

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Questions 14

Which two statements are correct about VXLANs? (Choose two.)

Options:

A.

VXLANs have smaller broadcast domains than VLANs.

B.

VXLANs have a smaller logical network identifier than VLANs.

C.

VXLANs can have a theoretical maximum of 16 million unique networks.

D.

VXLANs are an overlay technology.

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Questions 15

After configuring an IP fabric using EBGP as you protocol, you notice that not all of the routers are showing up in the routing tables. You have verified that all adjacencies have formed, and place and configured properly.

In this scenario, which statement is true?

Options:

A.

The routers have not been configured with the multipath multiple-as parameter.

B.

The routers have not been configured using the bfd-1 Liveness-detection parameter.

C.

The routers have not been configured using the multihop parameter.

D.

The routers have not been configured using the add-path parameter

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Questions 16

You are logged in to Leaf 1. When examining the routing table, you notice that you have no

routes from Leaf 2.

Referring to the exhibit, which two commands would you use to troubleshoot the problem? (Choosetwo.)

Options:

A.

From Leaf 2, issue the show route advertising-protocol bgp 172.16.1.2 command.

B.

From Spine 1, issue the show route advertising-protocol bgp 172.16.1.1 command.

C.

From Spine 1, issue the show route advertising-protocol bgp 172.16.1.2 command.

D.

From Leaf 1, issue the show route receive-protocol bgp 172.16.1.1 command.

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Questions 17

Which two statements are correct about VXLAN domains? (Choose two.)

Options:

A.

With Layer 2 traffic, the VLAN ID is discarded before the packet is sent.

B.

With Layer 3 traffic, the VLAN ID is discarded before the packet is sent.

C.

With Layer 2 traffic, the VLAN ID is transmitted within the packet.

D.

With Layer 3 traffic, the VLAN ID is transmitted within the packet.

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Questions 18

Which two statements describe a VXLAN network identifier (VNI)? (Choose Two)

Options:

A.

A VNI identifies the inner MAC frame.

B.

A VNI identifies a VXLAN segment ID.

C.

A VNI allows only 512 VLANs.

D.

A VNI validates the remote VTEP.

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Questions 19

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

Options:

A.

EVPN

B.

RSVP

C.

RSTP

D.

MPLS

Questions 20

You are asked to design a deployment plan for a large number of QFX Series switches using

ZTP. The ZTP deployment plan must ensure all switches are configured with their designated configuration file.

Which DHCP option and subscription combination would be used to accomplish this task?

Options:

A.

DHCP option 43 a suboption of 00.

B.

DHCP option 66 a suboption of 01.

C.

DHCP option 66 a suboption of 00.

D.

DHCP option 43 a suboption of 01.

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Questions 21

You are troubleshooting a traditional Clos Layer 3 IP fabric in your data center. You are reviewing

the BGP configuration for one of your spine devices.

Referring to the exhibit, which statement is correct?

Options:

A.

This spine device will not install multiple next hops for remote destinations in its routing table.

B.

This spine device will not install any routes for remote destinations in its routing table.

C.

This spine device has three neighboring leaf devices.

D.

This spine device has three neighboring spine devices.

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Questions 22

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?

Options:

A.

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

B.

Change the mc-ae is on qfx1 to 1

C.

Configure status-control on qfx2 to active

D.

Change the chassis on qfx1 to 1

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Questions 23

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

Options:

A.

Ensure that all spine devices are the same switched mode.

B.

Ensure that all uplinks are 40GbE.

C.

Ensure that every leaf node has an uplink spine node

D.

Ensure that every node has a link to every other leaf node

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Questions 24

Referring to the exhibit,

what happens when you initiate ZTP on a QFX5120 switch running Junos

21.3R1.9?

Options:

A.

ZTP skips both the Junos installation and the configuration.

B.

ZTP performs the Junos installation but skips the configuration.

C.

ZTP performs both the Junos installation and the configuration.

D.

ZTP skips the Junos installation but applies the configuration.

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Questions 25

You are asked to manage the oversubscription ratio of your spine and leaf IP fabric. You

determine that you are at a 3:1 ratio of downstream to upstream traffic and must achieve a 1.1ratio. In this scenario, which two actions would you take to achieve this goal? (Choose two.)

Options:

A.

Reduce the number of leaf nodes on your design.

B.

Increase the number of spine nodes in your design.

C.

Increase the number of server facing ports that each leaf node uses to carry traffic.

D.

Reduce the number of server facing that each leaf node uses to carry traffic.

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Questions 26

Referring to the exhibit, which statement is correct?

Options:

A.

The exhibit shows a 5-stage IP fabric architecture.

B.

The exhibit shows a collapsed fabric architecture.

C.

The exhibit does not represent a valid fabric architecture.

D.

The exhibit shows a 3-stage IP fabric architecture.

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Questions 27

You are asked to configure VXLAN for you c 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.)

Options:

A.

VLAN ID

B.

Routing instance name

C.

Multicast group

D.

VNI

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Questions 28

What is an advantage that EVPN has over VPLS when used for DCI?

Options:

A.

mass MAC withdrawal

B.

transparent BPDU transport

C.

active/standby multihoming

D.

reverse path forwarding

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Questions 29

Exhibit.

Referring to the exhibit, you want to advertise the IRB routes between both routing instances.

Which two statements are correct in this scenario? (Choose two.)

Options:

A.

Configure a rib-group policy to advertise interface routes under both routing instances.

B.

Configure vrf-table-label under both routing instances.

C.

Configure auto-export and an vrf-import policy under both routing instances.

D.

Configure a vrf-export policy to advertise interface routes under both routing instances.

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Questions 30

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

What is a solution to this problem?

Options:

A.

Enable the mtu-discovery feature on the MP peering sessions between VXLAN ANs EVPN signaling peers.

B.

Increase the protocol MTU on all devices participating in VXLAN using EVPN signaling

C.

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

D.

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

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Questions 31

When using EBGP as the underlay protocol for your IP fabric architecture, which two statements

are true? (Choose two.)

Options:

A.

Spine nodes peer to both leaf and spine nodes

B.

Leaf nodes only peer to spine nodes

C.

Leaf nodes peer to both spine and leaf nodes

D.

Spine nodes only peer to leaf nodes

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Questions 32

You are deploying a data center switch using ZTP. You want the switch to be upgraded to a specific software image and you want a specific configuration file applied when the switch boots with its factory default configuration.

In this scenario, which three transfer protocols will accomplish this task? (Choose three.)

Options:

A.

TFTP

B.

FTP

C.

SCP

D.

HTTP

E.

NFS

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Questions 33

You host a multitenant data center that runs VMware. You must perform deep packet inspection

on all inter-tenant traffic that is flowing between the VMs within the same hypervisor. Your solution must provide the security services without needing to leave the physical device. In this scenario, what should you do to solve this problem?

Options:

A.

Use separate vswitches to isolate each-tenant's network and use and use a vSRX device to evaluate inter-tenant traffic.

B.

Use VLANs to isolate each tenant's networks and use an SRX Series device to evaluate inter-tenant traffic.

C.

Use a VLANs to isolate each tenant's network and use IP tables to evaluates inter-tenant traffic.

D.

Use a vMX device to isolate each tenant's network and use firewall filters to evaluate inter-tenant traffic.

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Questions 34

You have a data center design with multiple tenants using routing instances.

In this scenario, what are two ways to provide inter-tenant communications? (Choose two.)

Options:

A.

Use EVPN type-7/8 routes.

B.

Use RIB groups.

C.

Use filter-based forwarding.

D.

Use EVPN type-6 routes.

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Questions 35

Exhibit.

Referring to the output shown in the exhibit, which two statements are correct? (Choose two.)

Options:

A.

Gateway2 is the backup forwarder.

B.

Gateway2 drops unknown unicast traffic from the core destined to the edge device.

C.

Gateway2 is responsible for sending unknown unicast traffic from the core to the edge device.

D.

Gateway2 is the designated forwarder.

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Questions 36

You are attempting to configure filter-based forwarding in your data center. All traffic from Host1

that is going to Host2 should be inspected by the data center firewall. You have verified that the traffic is being forwarded from router leaf L1's VRF-1 to its INSPECT-VRF.However, the traffic is not reaching service L2.

Referring to the exhibit, which two steps should you take to troubleshoot the problem? (choose two.)

Options:

A.

Examine the INSPECT-VRF.evpn 0 route table on L1 for a default route that will direct the traffic to L2.

B.

Examine the INSPECT-VRF.inet. 0 route table on L1 for a default route that will direct the traffic to L2.

C.

Ensure that VRF-1 and INSPECT-VRF route targets on L1 and L2 match.

D.

Ensure that the route target in the INSPECT-VRF of L1 matches the route target of the INSPECT- VRF of L2.

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Questions 37

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?

Options:

A.

Fast rerouter

B.

BGP Additional Paths

C.

Ethernet Autodiscovery

D.

Bidirectional Forwarding detection

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Questions 38

Which protocol replicates forwarding information between MC-LAG peers?

Options:

A.

VCCP

B.

ICCP

C.

VRRP

D.

LLDP

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Questions 39

Which three statements are correct about multitenancy in a Junos EVPN environment? (Choose three.)

Options:

A.

MAC-VRF instances allow for overlapping routes and VLANs.

B.

MAC-VRF instances allow for varying EVPN services on the same device.

C.

VRF instances allow for overlapping subnets.

D.

Virtual switch instances allow for varying EVPN services on the same device.

E.

Virtual switch instances allow for overlapping VLANs.

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Questions 40

Devices spine1 and spine 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 host must be able to communicate with device host?

Which two statements are true? (Choose two.)

Options:

A.

An IRB interface must be configured on device leaf1 and leaf2.

B.

An IRB interface must be configured on devices spine1 and spine2.

C.

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

D.

Traffic from host1 to host will transit a VXLAN tunnel to spine or spine2 then a VXLAN from spine1 or spine2 to leaf 3.

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Questions 41

What happens when a packet is encapsulated by a VXLAN before being placed in the overlay?

Options:

A.

The TTL is decremented by two and placed in the VXLAN header.

B.

The QoS marketing are placed in the VXLAN header.

C.

The VLAN-ID is placed in the VXLAN header.

D.

A VNI that maps to the VLAN-ID placed in the VXLAN header.

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Questions 42

Site 1 contains 20+ VMs. The link between Site 1 and Leaf1 goes down.Referring to the exhibit, which statement is correct?

Options:

A.

Type-1 routes for each VM will expire one at a time.

B.

Type-1 routes for all VMs in the site will expire all at once.

C.

Type-1 routes for all VMs in the site will be withdrawn all at once.

D.

Type-1 routes for each VM will be withdrawn one at a time.

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Questions 43

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.)

Options:

A.

Change the ESI mode on PE2 to all-active

B.

Change the ESI mode on PE1 to signal-active

C.

Change the ESI value on the PE1 device to 00.22.44.88.00.22.44.66.88

D.

Change the ESI value on the PE2 device to 00.00.00.00.00.00.00.00.00.00

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Questions 44

You are asked to increase the overall throughput of an existing IP fabric.

Which two tasks would accomplish this goal? (Choose two.)

Options:

A.

Add one more leaf node to the fabric.

B.

Add one uplink to all existing spine nodes from the newly added leaf node.

C.

Add one more uplink from each leaf node to the newly-added spine node.

D.

Add one more spine node to the fabric.

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Questions 45

Referring to the VTEP output shown in the exhibit, which two statements are true?(Choose two.)

Options:

A.

The. MAC address 52:54:00 5e 88 6a belongs to a remote host.

B.

The MAC address 52:54;00 5e 88 6a belongs to a local host.

C.

The MAC address 52:54:00 2c 4b:a2 belongs to a remote host.

D.

The MAC address 52:54:00 2c 4b:a2 belongs to a local host.

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Questions 46

Referring to the exhibit,

which two statements are correct? (Choose two.)

Options:

A.

There are two tunnels to the remote endpoint.

B.

The irb. 0 interface is the remote tunnel endpoint interface.

C.

The source tunnel IP address is 192.168.100.11.

D.

There is one tunnel to the remote endpoint.

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Exam Code: JN0-682
Exam Name: Data Center Professional (JNCIP-DC)
Last Update: May 26, 2024
Questions: 154
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