[2021] Valid JN0-681 test answers & Juniper JN0-681 exam pdf
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Career Benefits
The JNCIP-DC certification most generally leads to network engineering positions, either directly with Juniper Networks or with product management consulting firms. In particular, you can apply for positions such as a Data Center Systems Administrator and Network Data Center Engineer. As for the salaries, average earnings for Data Center Systems Administrator are estimated at $65,000 annually while Network Data Center Engineer can get as much as $72,000 per year as it’s stated by Glassdoor.com.
NEW QUESTION 11
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?
- 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 add-path parameter
- D. The routers have not been configured using the multihop parameter.
Answer: A
NEW QUESTION 12
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 value on the PE2 device to 00.00.00.00.00.00.00.00.00.00
- B. Change the ESI mode on PE1 to signal-active
- C. Change the ESI mode on PE2 to all-active
- D. Change the ESI value on the PE1 device to 00.22.44.88.00.22.44.66.88
Answer: C,D
NEW QUESTION 13
You created an IP Fabric based on IBGP. You noticed that ECMP load sharing is not working. In this scenario, what is the problem?
- A. Each member of the IP Fabric needs a different autonomous system number.
- B. BGP route reflectors only reflect the best route.
- C. ECMP load sharing is only supported on 40GbE and 100GbE interfaces.
- D. A route input policy needs to be added on all non-route reflectors to allow ECMP.
Answer: B,D
NEW QUESTION 14
You want to converse IP address space and reduce your fabric management overhead. For these reasons, you decided to use unnumbered Ethernet interfaces for your IP Fabric.
Which statement is correct in this scenario?
- A. The donor interface for an unnumbered interface must have only one configured IP address.
- B. OSPF is supported on unnumbered interfaces configured as a point-to-point connection.
- C. PIM is not supported on upstream unnumbered interfaces in the PIM topology.
- D. Only the IPv4 address family is supported on the interfaces.
Answer: B
NEW QUESTION 15
You are designing an EBGP IP fabric for a multi-side data center.
In this scenario, which two statements are true? (Choose two.)
- A. Different AS numbers should be used on all devices.
- B. The same AS number should be used on all devices across all data centers.
- C. Public AS numbers must be used
- D. Private AS numbers can be used.
Answer: A,D
NEW QUESTION 16
Which two statements are true with MC-LAG? (Choose two.)
- A. MC-LAG uses Link Aggregation Control Protocol (LACP) to communicate with a remote end point.
- B. MC-LAG uses Inter-Chassis Control Protocol (ICCP) to communicate with a remote end point.
- C. MC-LAG uses Inter-Chassis Control Protocol (ICCP) to communicate with a peer device.
- D. MC-LAG uses Link Aggregation Control Protocol (LACP) to communicate with a peer device.
Answer: A,C
NEW QUESTION 17
Referring to the exhibit, each node in the IP fabric is peering to its directly attached neighbor using EBGP.
Each node is peering using physical interface IP addresses. Leaf 2 and Leaf 3 are advertising the 10.1.1/24 network into EBGP. Spine 2 must be configured so that it can load-share traffic destined to the 10 1.1/24 network over both next-hop A and next-hop B.
Which two actions must be performed to accomplish this task? (Choose two.)
- A. Use advertise inactive
- B. Use a load-balancing policy applied to the forward table
- C. Use multipath multipath-As
- D. Use multihop
Answer: B,C
NEW QUESTION 18
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? (Choose two.)
- A. From Spine 1, issue the show route advertising-protocol bgp 172.16.1.1 command.
- B. From Spine 1, issue the show route advertising-protocol bgp 172.16.1.2 command.
- C. From Leaf 1, issue the show route receive-protocol bgp 172.16.1.1 command.
- D. From Leaf 2, issue the show route advertising-protocol bgp 172.16.1.2 command.
Answer: B,C
NEW QUESTION 19
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. Traffic from host1 to host2 will transit a VXLAN tunnel to spine1 or spine2, then a VXLAN tunnel from spine1 or spine2 to leaf3.
- B. Traffic from host1 to host2 will transit the VXLAN tunnel from leaf1 to leaf3.
- C. An IRS interface must be configured on devices spine1 and spine2.
- D. An IRB interface must be configured on devices leaf1 and leaf2.
Answer: A,C
NEW QUESTION 20 
You are attempting to deploy a VCF as shown in the exhibit. SW-1 and SW-2 are functioning as the spine devices and SW-3 and SW-4 are functioning as the leaf devices. However, the VCF is not functioning properly.
Which two actions would solve this problem? (Choose two.)
- A. Switch the positions of SW-2 and SW-3.
- B. Switch the positions of SW-1 and SW-3.
- C. Switch the positions of SW-2 and SW-4.
- D. Switch the positions of SW-1 and SW-4.
Answer: A,D
NEW QUESTION 21
Which two statements describe EVPN based VXLAN implementations? (Choose two.)
- A. MAC addresses are learned using multicast flooding
- B. MAC addresses ate propagated using BGP updates
- C. The movement of a virtual host results in the dynamic remapping of the VTEP
- D. The movement of a virtual host requires a manual reconfiguration of the VTEP
Answer: B,C
NEW QUESTION 22
You are asked to deploy 20 QFX Series devices using ZTP Each QFX5 100 requires FTP server.
In this scenario, which two component must you configure on the DHCP Server? (Choose two.)
- A. The MAC address of each QFX5100
- B. The MAC address of each FTP QFX5100
- C. The MAC address of the FTP server
- D. The IP address of the FTP server
Answer: C,D
NEW QUESTION 23
What are three advantages of using MPLS for data center interconnects? (Choose three.)
- A. sub 50 ms failover times
- B. any-to-any connectivity
- C. traffic engineering
- D. dedicated connections between customer sites
- E. dedicated MPLS backbones for Layer 2 and Layer 3 DCIs
Answer: A,C,E
NEW QUESTION 24
Which EVPN service consists of a single broadcast domain per EVPN instance?
- A. a port-based service interface
- B. a port-based VLAN-aware service interface
- C. a VLAN-based service interface
- D. a VLAN bundle service interface
Answer: C
NEW QUESTION 25
Referring to the exhibit, each node in the IP fabric is peering to its directly attached neighbor using EBGP. Each node is peering using physical interface IP addresses. Leaf 2 and Leaf 3 are advertising the 10.1.1/24 network into EBGP. Spine 2 must be configured so that it can load-share traffic destined to the 10 1.1/24 network over both next-hop A and next-hop B.
Which two actions must be performed to accomplish this task? (Choose two.)
- A. Use multihop.
- B. Use a load-balancing policy applied to the forwarding table.
- C. Use multipath multiple-AS.
- D. Use advertise-inactive.
Answer: B,C
NEW QUESTION 26
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. PIM
- B. OSPF
- C. BGP
- D. EVPN
Answer: D
NEW QUESTION 27
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 configuration is missing a configuration parameter.
Which parameter would the customer use to solve this problem?
- A. multihop
- B. advertise-peer-as
- C. accept-remote-nexthop
- D. add-path
Answer: D
NEW QUESTION 28
What happens when a packet is encapsulated by a VXLAN before being placed in the overlay?
- A. The QoS marketing are placed in the VXLAN header.
- B. A VNI that maps to the VLAN-ID placed in the VXLAN header.
- C. The TTL is decremented by two and placed in the VXLAN header.
- D. The VLAN-ID is placed in the VXLAN header.
Answer: B
NEW QUESTION 29
Referring to the exhibit, a failure has occurred and the original VCF has split into two separate VCFs. The VCF associated with SW-1 is active and the VCF associated with SW-3 is inactive.
In this scenario, why are the two VCFs in these states?
- A. The active VCF contains less operational interfaces than the deactivated VCF.
- B. The active VCF contains the master RE and more than half of the VCF members.
- C. The active VCF contains the backup RE and more than half of the VCF members.
- D. The active VCF contains the master and backup REs.
Answer: B
NEW QUESTION 30
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. configuring both IRB interfaces manually with the same IP address.
- C. allowing Junos to dynamically create the virtual MAC address of the IRB interface.
- D. allowing Junos to dynamically create the virtual IP address of the IRB interface.
Answer: B,C
Explanation:
Explanation
NEW QUESTION 31
You have deployed two data centers that require a Layer 2 stretch between host1 and host2.
Referring to the exhibit, what does a Layer 2 stretch require?
- A. A VXLAN tunnel originating on VTEP1 to VTEP2
- B. A VPLS WAN connection data centers
- C. A VXLAN tunnel originating on the Spine Layer in DC1 to the Spine Layer in DC2.
- D. A VXLAN tunnel originating on the super Spine Layer in DC1 to the Super Spine Layer in DC2
Answer: A
NEW QUESTION 32
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Through delivering network services and infrastructure, Juniper helps companies to build high-performance networks. The Juniper Networks Junos OS Professional Data Center JN0-681 is one of the exams for individuals who have an understanding of advanced data center networking skills and data center systems. Furthermore, JN0-681 focuses on skills for data center networking practitioners who have specialized in the concepts of data center architecture, as well as Dynamic Host Configuration Protocol, MC-LAG, VXLAN, Traffic isolation, and more. What’s more, JN0-681 exam is centered on the implementation of data center management strategies.
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