[2022年02月]更新のJuniper JN0-681テストエンジンとPDFで完全版無料問題集を無料提供
最新版を今すぐ試そうJN0-681認定有効な試験問題集
Juniper JN0-681 認定試験の出題範囲：
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質問 26 
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 VNI 5100.
Which event will cause R2 to establish the (S,G) state for VNI 5100 using R1 as the multicast source?
- A. when R2's VNI 5100 configuration is committed
- B. when R2 receives broadcast, multicast, or unknown unicast from Host A
- C. when R1 receives a known unicast Ethernet frame from Host A
- D. when R2 first learns the MAC address of a locally attached host
正解: B
質問 27
What happens when a packet is encapsulated by a VXLAN before being placed in the overlay?
- A. The VLAN-ID is placed in the VXLAN header.
- B. The QoS marketing are placed in the VXLAN header.
- C. A VNI that maps to the VLAN-ID placed in the VXLAN header.
- D. The TTL is decremented by two and placed in the VXLAN header.
正解: C
質問 28
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 advertise-inactive.
- D. Use multipath multiple-AS.
正解: B,D
質問 29
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 2, 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.
正解: B,D
質問 30
In the exhibit, VM1 is part of the same VXLAN segment as VM3.
Which type of message will R1 initially send to R2 so that VM1 receives BUM traffic from VM3?
- A. PIM Join
- B. PIM Register message
- C. IGMP Join (*.G)
- D. IGMP Join (S, G)
正解: A
質問 31
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 suboption combination would be used to accomplish this task?
- A. DHCP option 66 with a suboption of 01
- B. DHCP option 43 with a suboption of 00
- C. DHCP option 43 with a suboption of 01
- D. DHCP option 66 with a suboption of 00
正解: B
質問 32
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 multihop parameter.
- D. The routers have not been configured using the add-path parameter
正解: C
質問 33
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 to the configuration to allow the VLAN tag to be passed? (Choose two.)
- A. encapsulate-inner-vlan
- B. layer2-protocol-tunneling
- C. dotlq-tunneling
- D. decapsulate-accept-inner-vlan
正解: A,D
質問 34
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?
- A. Configure status-control on qfx2 to active
- B. Change the chassis on qfx1 to 1
- C. Configure a system-id on qfx1 that is different from the system-id on qfx2
- D. Change the mc-ae is on qfx1 to 1
正解: D
質問 35
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?
- A. Use a vMX device to isolate each tenant's network and use firewall filters 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 separate vswitches to isolate each-tenant's network and use and use a vSRX device to evaluate inter-tenant traffic.
正解: D
質問 36
To provision a Juniper QFX Series switch using Zero Touch Provisioning, which three components are required? (Choose three.)
- A. a file server
- B. a DNS server
- C. a preconfigured device configuration file
- D. multicast support
- E. DHCP Server
正解: A,C,E
質問 37 
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. Remove the ignore client-updates statement.
- B. Change the 150 suboption to reference the MAC address.
- C. Reference all the switch models in the file where necessary.
- D. Use FTP instead of TFTP for the transfer protocol.
正解: C
質問 38
Referring to the exhibit, not all routes are being exchanged by EBGP peers.
In this scenario, which BGP parameter would solve this problem?
- A. as-override
- B. multihop
- C. multipath multiple-as
- D. multipath
正解: A
質問 39
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-4.
- B. Switch the positions of SW-1 and SW-3.
- C. Switch the positions of SW-2 and SW-3.
- D. Switch the positions of SW-1 and SW-4.
正解: C,D
質問 40
What are three benefits of EVPN that would improve the current E-line, E-LAN, and E-Tree delivery? (Choose three.)
- A. native support for multihoming
- B. efficient security provisioning
- C. network resiliency between edge nodes
- D. integrated L2/L3 connectivity
- E. greater Multiprotocol Label Switching scale
正解: A,C,D
質問 41
Referring to the exhibit, R1 and R2 are QFX5100 Series devices acting as VXLAN Layer 2 Gateways using PIM-SM signaling for the same VXLAN segment (VNI 5100). The multicast group assigned to VNI 5100 is 239.0.0.1. R1 currently has an entry in its MAC table for Host B.
In this scenario, how will R1 react to receiving the Ethernet frame from Host A?
- A. R1 will send a VXLAN encapsulated Ethernet frame along the source-based multicast tree using 239.0.0.1 as the destination address.
- B. R1 will send a VXLAN encapsulated Ethernet frame along the RP-based multicast tree using 239.0.0.1 as the destination address.
- C. R1 will send a VXLAN encapsulated Ethernet frame using 10.1.1.1 as the destination address.
- D. R1 will send a VXLAN encapsulated Ethernet frame using 10.2.2.2 as the destination address.
正解: C
質問 42
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. one-arm SRX Series chassis cluster
- B. inline SRX Series device using LAG
- C. inline SRX Series chassis cluster
- D. one-arm SRX Series device using LAG
正解: C
質問 43
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?
- A. Use separate vSwitches to isolate each tenant's networks and use IP tables to evaluate inter-tenant traffic.
- B. Use separate vSwitches to isolate each tenant's networks and use a vSRX Series device to evaluate inter-tenant traffic.
- C. Use a vMX device to isolate each tenant's networks and use with firewall filters to evaluate inter-tenant traffic.
- D. Use VLANs to isolate each tenant's networks and use an SRX Series device to evaluate inter-tenant traffic.
正解: B
質問 44
Which EVPN router type prevents BUM traffic from looping back to a multihued host?
- A. Ethernet segment router
- B. Ether auto discovery route
- C. Inclusive multicast-Ethernet tag route
- D. IP prefix route
正解: B
質問 45
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.)
- A. By default, the QFX5100 will send copies of the multicast packets to locally attached devices in the same VLAN that are interested receivers only.
- B. By default, the QFX5100 will send copies of the multicast packets to all locally attached devices in the same VLAN.
- C. By default, the QFX5100 will encapsulate the multicast packets in VXLAN and forward them to all remotely connected VTEPs.
- D. By default, the QFX5100 will encapsulate the multicast packets in VXLAN and forward them to remotely connected VTEPs with interested receives only.
正解: B,C
質問 46 
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 the backup RE and more than half of the VCF members.
- B. The active VCF contains the master RE and more than half of the VCF members.
- C. The active VCF contains less operational interfaces than the deactivated VCF.
- D. The active VCF contains the master and backup REs.
正解: B
質問 47
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 43 a suboption of 00.
- B. DHCP option 43 a suboption of 01.
- C. DHCP option 66 a suboption of 00.
- D. DHCP option 66 a suboption of 01.
正解: B
質問 48
In the exhibit, VM1 is part of the same VXLAN segment as VM3.
Which type of message will VTEP B initially send to the RP so that VM3 can communicate with VM1?
- A. PIM register message
- B. PIM join
- C. IGMP Join (*,G)
- D. IGMP Join (S,G)
正解: A
質問 49
You are designing an EBGP IP fabric for a multi-side data center.
In this scenario, which two statements are true? (Choose two.)
- A. Public AS numbers must be used
- B. Different AS numbers should be used on all devices.
- C. The same AS number should be used on all devices across all data centers.
- D. Private AS numbers can be used.
正解: B,D
質問 50
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