JN0-650인기자격증시험덤프최신자료 - JN0-650시험유효덤프

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Juniper JN0-650 시험요강:

주제	소개
주제 1	Ethernet Switching and Spanning Tree: This section covers advanced Layer 2 switching including filter-based VLANs, private VLANs, MVRP, Layer 2 tunneling via Q-in-Q and L2PT, plus MSTP and VSTP protocols.
주제 2	EVPN: This section addresses Ethernet VPN technology for Layer 2 over Layer 3 connectivity, covering EVPN route types, VXLAN encapsulation, and multi-homing configurations.
주제 3	Interior Gateway Protocols (IGPs): This domain covers internal routing protocols operating within a single autonomous system, including OSPFv2, OSPFv3, and routing policy implementation, along with configuration, troubleshooting, and monitoring skills.
주제 4	BGP: This section focuses on Border Gateway Protocol operations including route selection, next hop resolution, BGP attributes, communities, load balancing, IPv4 IPv6 address families, advanced options, and routing policy implementation.
주제 5	Layer 2 Authentication and Access Control: This domain examines network access control mechanisms including 802.1x, MAC RADIUS, captive portal, server fail fallback, guest VLANs, and multi-method authentication considerations.
주제 6	Class of Service (CoS): This domain covers QoS mechanisms in Junos including CoS processing, header fields, forwarding classes, classification, policers, schedulers, drop profiles, shaping, and rewrite rules.

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JN0-650시험유효덤프 - JN0-650완벽한 시험기출자료

경쟁율이 심한 IT시대에Juniper JN0-650인증시험을 패스하여 자격증을 취득함으로 IT업계 관련 직종에 종사하고자 하는 분들에게는 아주 큰 가산점이 될수 있고 자신만의 위치를 보장할수 있으며 더욱이는 한층 업된 삶을 누릴수 있을수도 있습니다. Juniper JN0-650 덤프로 Juniper JN0-650 시험에서 실패하면 덤프비용을 보상해드리기에 안심하고 시험준비하셔야 합니다.

최신 JNCIS-ENT JN0-650 무료샘플문제 (Q48-Q53):

질문 # 48
Exhibit.

Referring to the exhibit. Ieaf2 is elected the designated forwarder
Which two statements are correct if server2 generates a broadcast frame*? (Choose two.)

A. Only Ieaf2 will forward the broadcast frame to server1
B. The broadcast frame will be forwarded to leaf1 and Ieaf2.
C. Only leaf1 will forward the broadcast frame to server1.
D. The broadcast frame will not be forwarded to leaf1.

정답：A,B

설명：
The exhibit illustrates anEVPN-VXLANfabric using multi-homing. Server1 is dual-homed to Leaf1 and Leaf2 using anEthernet Segment Identifier (ESI)in an active-active or active-standby configuration. Server2 is single-homed to Leaf3.
In EVPN environments, specific mechanisms are used to prevent loops and duplicate traffic when dealing with Broadcast, Unknown Unicast, and Multicast (BUM) traffic:
* Broadcast Propagation (Option A):When Server2 (connected to Leaf3) generates a broadcast frame, Leaf3 encapsulates this traffic into a VXLAN tunnel and forwards it to all other VTEPs (Virtual Tunnel End Points) that participate in that specific Virtual Network Instance (VNI). Therefore, both Leaf1 and Leaf2 will receive the broadcast frame from the core fabric.
* Designated Forwarder (DF) Election (Option C):To prevent a multi-homed device (like Server1) from receiving duplicate copies of the same broadcast frame from multiple leaf switches, EVPN utilizes aDesignated Forwarder (DF). For a given ESI, only one leaf switch is elected as the DF.
* The exhibit explicitly states thatLeaf2 is the Designated Forwarder.
* According to the Junos EVPN implementation, only the DF is responsible for decapsulating BUM traffic received from the core and forwarding it to the local access segment.
* While Leaf1 receives the frame (Option A), it will see that it is not the DF for that segment and will drop the frame rather than forwarding it to Server1. This ensures Server1 receives exactly one copy of the broadcast, delivered by Leaf2.
* Option B is incorrectbecause in a standard ingress replication or multicast-based underlay, all VTEPs in the VNI receive the broadcast.
* Option D is incorrectbecause Leaf1 is the non-designated forwarder (non-DF) for this segment and is prohibited from forwarding BUM traffic to the ESI.

질문 # 49
Which two statements are correct about EVPN Pure Type-5 routes? (Choose two.)

A. Pure Type-5 routes are also known as IP-VRF-to-IP-VRF.
B. Pure Type-5 routes require an overlay next hop.
C. Pure Type-5 routes are advertised with the MAC extended community.
D. Pure Type-5 routes rely on Type-7 sync routes

정답：A,B

설명：
EVPN Route Type 5 (IP Prefix Route) is used to advertise IP prefixes (subnets) between broadcast domains or between VRFs in an EVPN fabric.
* IP-VRF-to-IP-VRF (Statement C):In an EVPN-VXLAN architecture, Type 5 routes are primarily used forLayer 3 connectivity. They allow different IP-VRFs on different VTEPs to exchange prefix information directly. This model is widely referred to asIP-VRF-to-IP-VRFrouting because it enables inter-subnet routing at the leaf layer without requiring Layer 2 MAC learning for those specific prefixes.
* Overlay Next Hop (Statement B):For a PE router to reach a prefix advertised via a Type 5 route, it must resolve theoverlay next hop. This next hop is typically the loopback IP address of the originating VTEP, which the receiving router uses to build the VXLAN tunnel.
* Why others are incorrect:Statement A is incorrect because Type 7 routes are used for IGMP/MLD join synchronization. Statement D is incorrect because Type 5 routes advertise IP prefixes, not MAC addresses; MAC extended communities are associated with Type 2 routes.

질문 # 50
Which statement about LLDP and LLDP-MED operations on EX Series devices is correct?

A. LLDP-MED focuses on discovering network connectivity devices like routers and switches.
B. LLDP only operates on interfaces configured for Layer 2
C. EX Series devices flood LLDP frames across a Layer 2 domain to calculate a network topology
D. EX Series devices support LLDP-MED power negotiation, enabling dynamic allocation of PoE power based on endpoint device needs.

정답：D

설명：
Junos OS 24.4 on EX Series switches provides robust support for LLDP (Link Layer Discovery Protocol) and its extension,LLDP-MED(Media Endpoint Discovery).
* LLDP-MED Power Negotiation:This feature allows a switch (Power Sourcing Equipment or PSE) and a connected device (Powered Device or PD), such as an IP phone or access point, to negotiate power requirements beyond the standard IEEE 802.3af/at classes. The switch candynamically allocate the exact amount of power the device needs (in 0.1W increments), which optimizes the power budget of the switch.
* LLDP Scope:LLDP is a Link Layer protocol (Layer 2), but it is not restricted to Layer 2 interfaces; it can also operate onLayer 3 interfacesto advertise system identity and capabilities. This makesOption A incorrect.
* Link-Local Protocol:LLDP frames use a specific multicast MAC address (01:80:c2:00:00:0e) that is not floodedor forwarded by switches. They are strictly link-local between two directly connected neighbors. This makesOption Bincorrect.
* Endpoint Focus:LLDP-MED is specifically designed forMedia Endpoint Devices(like VoIP phones), providing TLVs for network policy (VLAN/QoS), location identification, and inventory management.
Standard LLDP is used for discovering network connectivity devices. This makesOption Dincorrect.

질문 # 51
Which two statements are correct about a functional ESI LAG interface? (Choose two.)

A. The ESI values must be the same.
B. The LACP system ID must be the same.
C. The ESI values must be different.
D. The LACP system ID must be different.

정답：A,B

질문 # 52
Which two statements are true regarding auto-RP? (Choose two.)

A. It uses flood and prune in the network.
B. It requires both sparse and dense mode PIM.
C. It requires PMI Dense mode only.
D. It requires PMI Sparse mode only.

정답：A,B

질문 # 53
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