[2021] JN0-681 Exam Dumps, Test Engine Practice Test Questions
Pass JN0-681 exam [Oct 28, 2021] Updated 68 Questions
Extra Resources for Your JN0-681 Exam
Although training courses found on the Juniper website are really helpful, you can also refer to other resources available online and offline to help you with your JN0-681 exam. Thus, here are a few books from Amazon that you can look at when preparing for your real validation:
- First Edition of Juniper QFX10000 Series by Jr. Douglas Rickard Hanks
This guide is a great resource for Data Network Engineers who are preparing for Juniper exams. In it, you will discover how to use the switch for the next-generation in your data center to compose it all from web data centers to conventional application IT data centers. What’s more, such a book is constructed to provide ultimate deep buffers, success scale, and feature functionality for the data center using in-house Juniper silicon. Finally, you will learn how to design your own network infrastructure architecture, comprehend the highest power and scaling, generate a switching fabric for the data center with JunosFusion, and develop a network-based interface fabric with EVPN-VXLAN.
- First Edition of Juniper Networks Warrior by Peter Southwick
This book provides a unique case study of the development, installation, and troubleshooting of Juniper operating systems. Here, you can also find many networking issues for data centers, such as the hosting company that has transferred its core, data center, and access areas to a Juniper network. The author also discusses the core network and network layer strategies that helped companies support users and ISPs in the market for data services.
- First Edition of Architecture, Protocols, and Tools by Dinesh G. Dutt
If you intend to validate your skills in current cloud-native data center networks, this book is a smart start then. Such a guide is suitable for network engineers, operators of data centers, and developers of networks in container-based applications. Also, it is completely packed with examples for individuals who are engaged in networking using open-source applications, from FRR to Ansible. Furthermore, networking principles such as clos topology, container networking, the virtualization of the network and EVPN, options for network automation, and routing protocol are discussed in a manual like this.
- Data Center Deployment with EVPN/VXLAN by Deepti Chandra
Such a guide gives you a systematic knowledge of the basics of EVPN/VXLAN technologies and how they've been applied. In order to illustrate various flows of traffic in a data center and for Data Center Interconnect, the book provides comprehensive configuration patterns, commands for validation, and captures for packages. Besides the author elaborates on five entire case studies together with the examples from a senior data center architect including configurations and field-tested insights.
Conclusion
Completing the Juniper JN0-681 exam is a smart move in your data networking career that will bring you the JNCIP-DC certification. Even though mastering such a test might be difficult, with the right techniques and practice, you will easily manage to do so. Thus, opt for the official training, supplement it with the study guides that can be accessed from Amazon, and obtain your designation.
NEW QUESTION 13
Referring to the VTEP output shown in the exhibit, which two statements are true? (Choose two.)
- A. The MAC address 52:54;00 5e 88 6a belongs to a local host.
- B. The. MAC address 52:54:00 5e 88 6a belongs to a remote 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.
Answer: B,C
NEW QUESTION 14
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.)
- A. Each device should also run an IGP to advertise loopback interfaces.
- B. Each leaf must peer to each spine.
- C. Each leaf must peer to every other leaf.
- D. EBGP does not require a next-hop self-policy.
- E. Each device should you use a different autonomous system number.
Answer: B,D,E
NEW QUESTION 15
Which two statements describes an IP fabric? (Choose two.)
- A. Each leaf should have a connection to each spine.
- B. xSTP protocols should be used to prevent loops
- C. Open standards allow for vendor interoperability.
- D. Traffic should always follow a single path
Answer: A,B
NEW QUESTION 16
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
Answer: C
NEW QUESTION 17
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?
- A. DHCP option 66 a suboption of 01.
- B. DHCP option 43 a suboption of 00.
- C. DHCP option 66 a suboption of 00.
- D. DHCP option 43 a suboption of 01.
Answer: B
NEW QUESTION 18
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. An IRS interface must be configured on devices spine1 and spine2.
- 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. Traffic from host1 to host2 will transit the VXLAN tunnel from leaf1 to leaf3.
Answer: B,C
NEW QUESTION 19
What are the two valid types of VXLAN signaling?(Choose two.)
- A. EVPN
- B. RSTP
- C. RSVP
- D. MPLS
Answer: A,D
NEW QUESTION 20
What is the purpose of the command shown in the exhibit?
- A. to stop the reception of transit multicast traffic when there are no interested receivers attached to the local VTEP.
- B. to disallow IGMP requests for the group 239.0.0.1 from hosts attached to the local VTEP.
- C. to disable the multicast group 239.0.0.1 across the entire VXLAN.
- D. to stop the transmission of transit multicast traffic when there are no interested receivers attached to a remote VTEP.
Answer: D
NEW QUESTION 21
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 must be performed on the IRB interface to accomplish this task?
- A. Configure the same IP address and the same MAC address on each PE.
- B. Configure different IP addresses but the same MAC address on each PE.
- C. Configure different IP addresses and different MAC addresses on each PE.
- D. Configure the same IP address and let the MAC address be dynamically assigned on each PE.
Answer: A
NEW QUESTION 22
Which two statements are true regarding IP fabrics?
- A. An IP fabric uses standby links for redundancy.
- B. An IP fabric load balances across links for redundancy.
- C. An IP fabric uses Spanning Tree Protocol to avoid loops.
- D. An IP fabric uses routing protocols to avoid loops.
Answer: B,D
NEW QUESTION 23 
You have configured a DHCP server for ZTP as shown in the exhibit. Your network contains EX2200 and QFX5100 devices, however, only the EX2200s are receiving the baseline configuration file. You want to ensure that all of the switches in your network receive the baseline configuration file.
Which actions will satisfy this requirement?
- A. Change the 150 suboption to reference the MAC address.
- B. Remove the ignore client-updates statement.
- C. Reference all the switch models in the file where necessary.
- D. Use FTP instead of TFTP for the transfer protocol.
Answer: C
NEW QUESTION 24
You need to add perimeter security to the network shown in the exhibit. All traffic must be inspected for attacks. The edge routers are using all available ports. Your solution must maintain both port and device resiliency.
In this scenario, which design would satisfy these requirements?
- A. inline SRX Series chassis cluster
- B. one-arm SRX Series device using LAG
- C. inline SPX Series device using LAG
- D. one-arm SRX Series chassis cluster
Answer: B
NEW QUESTION 25
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 the EX4300 40GbE fabric links will not join the VCF.
In this scenario, what must be corrected to solve the connectivity problem?
- A. Reboot all of the VCF members.
- B. Turn off authonegotiation on the EX4300 and the attached spine interfaces, and then use the request virtual-chassis vc-port set command on the spine ports connected to the EX4300.
- C. Zeroize the EX4300, cleat all the tables with the clear ethernet-switching tables command on all members, and reissue the request virtual-chassis mixed-mode command.
- D. Power off all of the VCF members and power up the spines before powering up the leafs.
Answer: B
NEW QUESTION 26
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 1:1 ratio.
In this scenario, which two actions would you take to achieve this goal? (Choose two.)
- A. Increase the number of spine nodes in your design.
- B. Reduce the number of server-facing ports that each leaf node uses to carry traffic.
- C. Reduce the number of leaf nodes in your design.
- D. Increase the number of server-facing ports that each leaf node uses to carry traffic.
Answer: A,B
NEW QUESTION 27
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 PE2 to all-active
- B. Change the ESI value on the PE1 device to 00.22.44.88.00.22.44.66.88
- C. Change the ESI value on the PE2 device to 00.00.00.00.00.00.00.00.00.00
- D. Change the ESI mode on PE1 to signal-active
Answer: A,B
NEW QUESTION 28
What happens when a packet is encapsulated by a VXLAN before being placed in the overlay?
- A. The TTL is decremented by two and placed in the VXLAN header.
- B. A VNI that maps to the VLAN-ID is placed in the VXLAN header.
- C. The QoS markings are placed in the VXLAN header.
- D. The VLAN-ID is placed in the VXLAN header.
Answer: B
NEW QUESTION 29
Referring to the exhibit, DC1 and DC2 have a DCI across a service provider WAN connection. Host1 in DC1 must have Layer 2 connectivity to host2 in DC2. A VXLAN tunnel must be created between VTEP1 and VTEP2.
In this scenario, which statement is true?
- A. VTEP1 and VTEP2 must peer using IBGP.
- B. VXLAN Layer 3 gateway must be provisioned at the Super Spine layer.
- C. The service provider WAN connection cannot be an MPLS-based WAN connection.
- D. A route to the loopback address on VTEP2 must be present on VTEP1.
Answer: D
NEW QUESTION 30
Which two statements are true regarding EVPN Route Distinguishers? (Choose two.)
- A. It can contain a four byte administration field and a two byte assigned number field.
- B. It can contain a six byte administration field and a two byte assigned number field.
- C. It can contain a two byte administration field and a six byte assigned number field.
- D. It can contain a two byte administration field and a four byte assigned number field.
Answer: A,D
NEW QUESTION 31
Which two combinations are supported when configuring a Virtual Chassis Fabric? (Choose two.)
- A. two spine nodes and 28 leaf nodes
- B. four spine nodes and 20 leaf nodes
- C. two spine nodes and 16 leaf nodes
- D. four spine nodes with 16 leaf nodes
Answer: C,D
NEW QUESTION 32
Referring to the exhibit, Host 1 and Host 3 have exchanged traffic.
`
In this scenario, which statement is true?
- A. Leaf 2 does not learn Host 1's MAC address until Host1 and Host2 send traffic to each other
- B. Leaf 2 learn Host 1's MAC address when Leaf 1 queries Host 1.
- C. Leaf 2 learn Host 1's MAC address through periodic updates from Spine 2
- D. Leaf 2 learn Host 1's MAC address when Host 3 learns Host 1's MAC address.
Answer: B
NEW QUESTION 33
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. VPLS
- B. VMTO
- C. EVPN
- D. VXLAN
Answer: B,C
NEW QUESTION 34
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 using the multihop parameter.
- B. The routers have not been configured with the multipath multiple-as parameter.
- C. The routers have not been configured using the add-path parameter
- D. The routers have not been configured using the bfd-1 Liveness-detection parameter.
Answer: A
NEW QUESTION 35
Which two statements are true with MC-LAG? (Choose two.)
- A. MC-LAG uses Inter-Chassis Control Protocol (ICCP) to communicate with a remote end point.
- B. MC-LAG uses Link Aggregation Control Protocol (LACP) to communicate with a remote end point.
- C. MC-LAG uses Link Aggregation Control Protocol (LACP) to communicate with a peer device.
- D. MC-LAG uses Inter-Chassis Control Protocol (ICCP) to communicate with a peer device.
Answer: B,D
NEW QUESTION 36
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