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無料Juniper JN0-649テスト練習問題試験問題集
JNCIP-ENT試験は、企業レベルのネットワークに広範な経験を持つネットワークの専門家を対象としています。この認定は、ネットワークインフラストラクチャと高度なルーティングおよびスイッチング技術についてのより深い理解を提供します。試験は、ネットワーキングプロトコル、セキュリティ、およびトラブルシューティングスキルの知識をテストします。
Juniper JN0-649の認定試験は、エンタープライズルーティングとスイッチングのスキルを検証したいプロフェッショナル向けに設計されています。この認定は、ビジネス環境でJuniper Networksのルーターとスイッチを使用する個人に最適です。試験では、Juniper Networksデバイスの構成、トラブルシューティング、およびメンテナンスに必要な知識とスキルがテストされます。
質問 # 39
A customer requires that the switch responds to an ARP request only if the source and target IP address are on different subnets.
Referring to the Exhibit, how would you accomplish this task?
- A. Create a static ARP entry for the host.
- B. Remove the proxy ARP setting and clear the entry.
- C. Enable the no-gratuitous-arp request command under the interface hierarchy.
- D. Change the proxy ARP parameter setting to restricted.
正解：D
質問 # 40
Packets enter a Juniper device and are classified as best effort. During the processing of the packet, the classification of the packets is changed to expedited forwarding by a multi-field classifier. The device is using the default CoS policies Which statement is true in this scenario?
- A. The packet is forwarded according to the original packet classification, and the DSCP bits do not change.
- B. The packet is forwarded according to the new packet classification, and the DSCP bits are rewritten to the new class.
- C. The packet is forwarded according to the new packet classification, and the DSCP bits do not change.
- D. The packet is forwarded according to the original packet classification, and the DSCP bits are rewritten to the new class.
正解：C
質問 # 41
You are asked to troubleshoot voice quality issues on your newly implement VoIP network. You notice that the voice packets are being dropped. You have verified that the packets are correctly marked for expedited forwarding queue.
Referring to the exhibit, what must you configure to solve the problem?
- A. You must configure a rewrite rule to ensure that the traffic is scheduled properly in the device.
- B. You must configure a multifield classifier to put the VoIP traffic in the correct queue.
- C. You must configure a scheduler to allocate bandwidth to the expedited forwarding queue.
- D. You must configure a policer to ensure that the queue is not being starved.
正解：C
質問 # 42
You are asked to establish full connectivity between all devices in the BGP network.
Referring to the exhibit, which two configuration changes will allow BGP route advertisements? (Choose two.)
- A. On R1 and R3, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- B. On R2, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- C. On R2, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- D. On R1 and R3, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
正解：C、D
解説：
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/ref/statement/advertise-peer-as-edit-protocols-bgp.html
質問 # 43
Which two multicast listener registration protocols are supported in the Junos operating system? (Choose two.)
- A. DVMRP
- B. PIM
- C. IGMP
- D. MLD
正解：C、D
解説：
internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) are the Multicast Group Membership Discovery (MGMD) protocols
質問 # 44
The connection between DC1 and DC2 is routed as shown in the exhibit.
In this scenario, which statement is correct?
- A. The border devices must be able to perform Layer 3 routing and provide IRB functionality.
- B. L3VPN must be enabled to advertise reachability.
- C. Type 2 and Type 5 routes will be exchanged between DC1 and DC2.
- D. An IP prefix route provides encoding for intra-subnet forwarding.
正解：A
質問 # 45
Which EVPN route type is used for fast convergence and for advertising the split horizon label?
- A. Type 1
- B. Type 4
- C. Type 2
- D. Type 5
正解：A
質問 # 46
Remote branches connect to the corporate WAN through access switches. The access switches connect to access ports on the WAN distribution switch, as shown in the exhibit. L2PT has previously been configured on the tunnel Layer 2 traffic across the WAN. You decide to move the L2PT tunnel endpoints to the access switches. When you apply the L2PT configuration to the access switches, the ports that connect the access switches to the distribution switch shut down.
Which action would solve this problem?
- A. Disable the BPDU block function on the distribution switch.
- B. Configure a GRE tunnel to encapsulate the L2PT traffic across the WAN.
- C. Configure the links between the access switches and the distribution switch as a trunk port.
- D. Disable the BPDU block function on the access switches.
正解：C
質問 # 47
Referring to the exhibit, which two statements are correct? (Choose two.)
- A. The host that the route is associated with is single-homed to one leaf node.
- B. The route is a Type 1 EVPN route.
- C. The host that the route is associated with is multihomed to two leaf nodes.
- D. The route is a Type 2 EVPN route.
正解：A、B
質問 # 48
Which three MSTP parameters must match on all switches in the same MST region? (Choose three.)
- A. configuration name
- B. revision number
- C. bridge priority
- D. MSTI-to-VLAN mapping
- E. forwarding delay
正解：A、B、C
質問 # 49
Referring to the exhibit, how is R1learning the route from R2? R2 has an export policy with external type 2 configured.
- A. R2 has interface ge-0/0/2 configured as a passive interface under OSPFv3.
- B. R2 has an interface policy with external type 1 configured.
- C. R2 has interface ge-0/0/2 configured in another area under OSPFv3.
- D. R2 has interface ge-0/0 configured as a passive interface under OSPFv3.
正解：B
質問 # 50
You receive the same 100.200.0/16 route from all four ISPs to which you are connected.
Referring to the exhibit, which ISP's route will be selected as active?
- A. ISP-D
- B. ISP-A
- C. ISP-C
- D. ISP-B
正解：B
質問 # 51
What are two OSPF LSA types? (Choose two.)
- A. Transit
- B. Stub
- C. Network
- D. Router
正解：C、D
質問 # 52
Which three statements are correct about EVPN route types? (Choose three.)
- A. Type 3 routes carry replication information.
- B. Type 5 routes carry replication information.
- C. Type 1 routes carry endpoint MAC address information.
- D. Type 2 routes carry endpoint MAC address information.
- E. Type 2 routes carry endpoint IP address information.
正解：C、D、E
質問 # 53
Referring to the exhibit, which LSA type is used to advertise 192.168.1.0/24 to R5?
- A. Type 7
- B. Type 3
- C. Type 4
- D. Type 5
正解：C
質問 # 54
You are asked to establish full connectivity between all devices in the BGP network. Referring to the exhibit, which two configuration changes will allow BGP route advertisements? (Choose two.)
- A. On R1 and R3, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- B. On R2, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
- C. On R2, include the advertise-peer-as statement at the [edit protocols bgp group external] hierarchy.
- D. On R1 and R3, include the loops 2 statement at the [edit protocols bgp family inet unicast] hierarchy.
正解：C、D
質問 # 55
Your enterprise network is running BGP VPNs to support multitenancy. Some of the devices with which you peer BGP do not support the VPN NLRI. You must ensure that you do not send BGP VPN routes to the remote peer.
Which two configuration steps will satisfy this requirement? (Choose two.)
- A. Configure the apply-vpn-export feature on the local BGP peer.
- B. Configure a route reflector for the VPN NLRI.
- C. Configure an import policy on the remote peer to reject the routes when they are received.
- D. Configure an export policy on the local BGP peer to reject the VPN routes being sent to the remote peer.
正解：A、D
質問 # 56
You have configured class mode power management on an EX4300 to provide PoE power to telephone and security camera equipment. You want to ensure that security camera power takes priority over telephone power.
Which two actions would solve this problem? (Choose two.)
- A. Set the power priority to high on ports connected to security cameras.
- B. Set the power priority to low on ports connected to security cameras.
- C. Connect the security cameras to the lowest port numbers on the switch.
- D. Set the maximum power settings on ports connected to security cameras.
正解：A、C
解説：
https://www.juniper.net/documentation//en_US/junos/topics/concept/poe-overview.html#jd0e1522 Thus you must set interfaces that connect to critical powered devices, such as security cameras and emergency phones, to high priority. Among PoE interfaces that have the same assigned priority, power priority is determined by the port number, with lower-numbered ports having higher priority.
質問 # 57
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