[2024年07月23日]JN0-682試験問題集、JN0-682練習テスト問題 [Q49-Q70]

[2024年07月23日]JN0-682試験問題集、JN0-682練習テスト問題

無料で使えるJN0-682学習ガイド試験問題と解答

質問 # 49
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 01.
B. DHCP option 66 a suboption of 00.
C. DHCP option 66 a suboption of 01.
D. DHCP option 43 a suboption of 00.

正解：A

質問 # 50
Exhibit.

Referring to the exhibit, you must advertise the Io0.12 interface as a type-5 route.
Which configuration parameter would be used to accomplish this task?

A. Configure a vrf-export policy to advertise the interface route under the routing instance.
B. Configure auto-export under the routing instance.
C. Configure an export policy to advertise the interface route under protocols evpn.
D. Configure vrf-table-label under the routing instance.

正解：C

質問 # 51
What is an advantage that EVPN has over VPLS when used for DCI?

A. mass MAC withdrawal
B. active/standby multihoming
C. reverse path forwarding
D. transparent BPDU transport

正解：A

解説：
One of the primary advantages of EVPN (Ethernet VPN) over VPLS (Virtual Private LAN Service) is the capability of mass MAC withdrawal (A). This feature allows EVPN to quickly remove MAC addresses from the forwarding database when a link or node fails, improving convergence times and network stability. In contrast, VPLS lacks this efficient mechanism for withdrawing MAC addresses en masse, which can lead to slower convergence and potential traffic blackholing in the event of network changes or failures. Reference:
Juniper Networks - EVPN Overview
Understanding EVPN

質問 # 52
A client with five data centers spread around the country uses MPLS L2VPNs to provides point- to- point data center interconnect between each data center in a full-mesh network. The client Is considering an MPLS EVEN implementation.
In this scenario, what are three advantages of using MPL5 EVEN interconnects? (Choose two.)

A. The provide for static configuration that does not require a Dynamic Routing Protocol
B. They provide for a MAC learning in the control plane.
C. They provide for point to multipoint connectivity
D. They provide for lower transmission latency.
E. They provide for a local proxy ARP/ND resolution.

正解：B、C、E

質問 # 53
You are asked to enable plug-and-play line card switches in an active VCF without making any future Junos configuration charges. You are also required to ensure that all new line card are automatically upgrade to the correct Junos version without any manual intervention. In this scenario, which two actions will accomplish this task? (Choose two.)

A. Set the virtual Chassis as auto-provisioned before the line cars are inserted.
B. Configure the auto-sw-update parameter on the VCF before inserting new line cards.
C. Ensure that the newly instead card's MAC addresses are present in the DHCP configuration for ZTP.
D. Set the Virtual Chassis as per-provision before the line are inserted.

正解：A、B

解説：
Setting the Virtual Chassis as auto-provisioned (A) and configuring the auto-sw-update parameter (D) are key to enabling plug-and-play functionality for line card switches in an active VCF. This ensures that new line cards are automatically recognized and updated to the correct Junos version without manual intervention.
Reference:
Juniper Networks - Virtual Chassis Fabric Configuration Guide

質問 # 54
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.)

A. VNI
B. Routing instance name
C. VLAN ID
D. Multicast group

正解：A、D

解説：
C) Multicast group must match on the VTEPs in the same VXLAN segment to ensure that they can properly participate in the same broadcast domain. D. VNI (VXLAN Network Identifier) must also match to ensure that all VTEPs are part of the same VXLAN overlay network.

質問 # 55
You manage a data center with a 5-stage EVPN-VXLAN IP fabric. You notice that there are suboptimal paths used between the leaf and spine as well as the spine and super spine. What is one way to solve this issue?

A. Configure the super spine and spine layers to all use the same ASN.
B. Configure the spine layer so that all spines in a POD share the same ASN.
C. Configure the spine layer for EBGP and the leaf layer for IBGP
D. Configure the leaf layer so that all leaf devices share the same ASN.

正解：B

解説：
By configuring all spines in a POD to share the same ASN, it simplifies the BGP routing and ensures that more optimal paths are used in a 5-stage EVPN-VXLAN IP fabric.

質問 # 56
Refer to the exhibit.

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

A. Gateway2 is responsible for sending unknown unicast traffic from the core to the edge device.
B. Gateway2 is the designated forwarder.
C. Gateway2 is the backup forwarder.
D. Gateway2 drops unknown unicast traffic from the core destined to the edge device.

正解：B、C

質問 # 57
Which two statements describe a VXLAN network identifier (VNI)? (Choose Two)

A. A VNI identifies the inner MAC frame.
B. A VNI identifies a VXLAN segment ID.
C. A VNI validates the remote VTEP.
D. A VNI allows only 512 VLANs.

正解：B、C

解説：
A VXLAN Network Identifier (VNI) is crucial in VXLAN as it identifies a specific VXLAN segment, allowing for traffic segregation and logical network partitioning within the same physical infrastructure. VNIs also play a role in validating remote VTEPs (VXLAN Tunnel Endpoints) as part of the VXLAN encapsulation and decapsulation process.
Reference:
Juniper Networks - VXLAN Overview

質問 # 58
Your manager asks you to secure ARP and DHCP traffic across your local Ethernet links
In this scenario, which technology will accomplish this task?

A. A firewall filter
B. SSL
C. MAC sec
D. IPsec

正解：C

質問 # 59
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.)

A. Configure virtual-gateway-accept-data under the IRB interface.
B. Configure a spine-to-spine BGP peering as part of the overlay.
C. Configure proxy-macip-advertisement under the IRB interface.
D. Configure a spine-to-spine EVPN peering as part of the routing instance.

正解：B、D

質問 # 60
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 VLANs to isolate each tenant's network and use IP tables to evaluates 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 separate vswitches to isolate each-tenant's network and use and use a vSRX device to evaluate inter-tenant traffic.
D. Use a vMX device to isolate each tenant's network and use firewall filters to evaluate inter-tenant traffic.

正解：C

解説：
Using separate vSwitches for each tenant's network in conjunction with a vSRX device allows for effective isolation and deep packet inspection of inter-tenant traffic. The vSRX can inspect traffic at the hypervisor level without the need for traffic to leave the physical device.
Reference:
Juniper Networks - vSRX Virtual Firewall

質問 # 61
You are asked to deploy an Ethernet bridging design in a data center with the following criteria:
--routing must occur on the leaf devices.
--VTEPs must terminate on the leaf devices.
--facilitate inter-VLAN communication, -- lower latency with East-West traffic.
Which architecture should you use in this scenario?

A. edge-routed bridging architecture
B. bridge overlay architecture
C. collapsed spine architecture
D. centrally-routed bridging architecture

正解：D

質問 # 62
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 the FTP server
B. The IP address of the FTP server
C. The MAC address of each FTP QFX5100
D. The MAC address of each QFX5100

正解：B、C

解説：
B) The IP address of the FTP server must be specified so that the QFX Series devices know where to retrieve their configuration files.
D) The MAC address of each QFX5100 is necessary to ensure that each switch receives the correct configuration file. This can be specified in the DHCP server to map each MAC address to its corresponding configuration file.

質問 # 63
You are evaluating which method to use for learning MAC addresses in your VXLAN network.
Which statement is true in this scenario?

A. Multicast exchanges MAC addresses through data plane learning and is more reliable than EVPN.
B. Multicast exchanges MAC addresses through control plane learning and is not more reliable than EVPN.
C. EVPN exchanges MAC addresses through data plane learning and is more reliable than multicast.
D. EVPN exchanges MAC addresses through control plane learning and is more reliable than multicast.

正解：D

質問 # 64
Exhibit.

You are troubleshooting a problem with traffic not reaching a remote VTEP Referring to the exhibit, what is the reason for the problem?

A. No VTEP is configured on peer 192.0.2.20.
B. The remote VTEP does not have the correct VNI configured.
C. A conflict exists with the VLAN-to-VNI mapping.
D. The local VTEP is misconfigured with the wrong VNI.

正解：B

質問 # 65
You want to configure redundant Layer 3 gateways
In this scenario, which two juniper best practices would accomplish this task? (Choose two.)

A. Allowing Junos to dynamically create the virtual MAC address of the IRB interface
B. Configuring both IRB interfaces manually with the same address
C. Allowing Junos to dynamically create the virtual IP address of the IRB interface
D. Configuring both IRB interfaces manually with the same IP address

正解：C、D

質問 # 66
Which two statements are true Virtual Chassis? (Choose two.)

A. By default, Junos switches are in non-mixed mode virtual chassis.
B. By default, Junos switches are in a mixes mode Virtual Chassis
C. The request virtual-chassis mode fabric reboot command will set the Virtual Chassis to mixed mode.
D. The request virtual-chassis mode fabric reboot command will set the Virtual Chassis to fabric mode with similar devices

正解：B、C

質問 # 67
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.)

A. add-path send
B. as-override
C. loops 2
D. advertise-peer-as

正解：B、D

質問 # 68
Exhibit.

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?

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 spine devices.
D. This spine device has three neighboring leaf devices.

正解：B

質問 # 69
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?