P.S.JapancertがGoogle Driveで共有している無料の2026 Juniper JN0-650ダンプ：https://drive.google.com/open?id=1Ibg5xWylgPcTyXJMtA1-Ye0b-dPmgB6T
JapancertのJuniperのJN0-650試験トレーニング資料は豊富な経験を持っているIT専門家が研究したもので、問題と解答が緊密に結んでいるものです。JuniperのJN0-650試験トレーニング資料は現在、市場上で一番質のいい学習教材です。Japancertは無料でサンプルを提供することができる。うちの学習教材は君の認定試験に合格することに大変役に立ちます。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Services | 15% | - Firewall Filters (ACLs) and Policers - DNS Relay - DHCP Relay and Snooping - Quality of Service (QoS) — classification, policing, shaping, queuing |
| Topic 2: Security and Automation | 15% | - Zero Touch Provisioning (ZTP) - Storm Control and Port Security - Junos PyFMT (Python-based automation) - Interactive CLI and scripts - MACsec (Encryption at Layer 2) - 802.1X (Port-Based Network Access Control) - Ansible and Jinja2 templating |
| Topic 3: Network Optimization and Monitoring | 15% | - OpenConfig and YANG - Simple Network Management Protocol (SNMP) - Junos Analytics and Streaming Telemetry - Class of Service (CoS) — schedulers, drop profiles, rewrite rules - sFlow and Port Mirroring for traffic analysis |
| Topic 4: Layer 3 Routing | 20% | - Route Redistribution and Route Filtering - Load Balancing and ECMP - IS-IS (single area, multi-area) - BGP (iBGP, eBGP, route reflectors, confederations) - Policy-Based Routing - OSPF (Multi-area, LSA types, SPF calculation) |
| Topic 5: Layer 2 Switching | 15% | - Layer 2 Forwarding and MAC Table Management - VLANs and VLAN Trunking Protocol (VTP) - BPDU Protection, Loop Protection - Link Aggregation (LACP) - Spanning Tree Protocols (STP, RSTP, MSTP) |
| Topic 6: High Availability | 20% | - Graceful Routing Engine Switchover (GRES) - Bidirectional Forwarding Detection (BFD) - Non-Stop Routing (NSR) - In-Service Software Upgrade (ISSU) - Virtual Chassis (VC) and Virtual Chassis Fabric (VCF) - Non-Stop Bridging (NSB) - IP Surveillance and Multicast RP |
献身と熱意を持ってJN0-650ガイド資料を段階的に学習する場合、必死に試験に合格することを保証します。学習資料の権威あるプロバイダーとして、潜在顧客からより多くの注目を集めるために、常に同等のテストと比較してJN0-650模擬テストの高い合格率を追求しています。将来的には、JN0-650試験トレントは、高い合格率でより魅力的で素晴らしいものになると信じています。
質問 # 122
Exhibit.
You want to limit port access to only one device at a time.
Referring to the exhibit, which configuration change will accomplish this task?
正解：A
解説：
In Junos OS, the supplicant-mode configuration under protocols dot1x determines how the switch handles multiple MAC addresses on a single physical port. According to the exhibit, the current mode is set to Single, and the Number of connected supplicants is 2. This indicates that the port is currently allowing multiple devices, which contradicts the goal of limiting access to only one device at a time.
Here is the breakdown of why Option C is the correct solution based on Juniper's standard behavior:
Supplicant Mode: Single (Current State): In this mode, the first device to authenticate opens the port for all subsequent devices. As long as the first device remains authenticated, other devices can send traffic through the port without individual authentication. This is why the exhibit shows 2 connected supplicants despite the mode being " Single. " Supplicant Mode: Single-Secure (The Solution): This mode strictly limits the port to only one MAC address.
Once a device successfully authenticates via 802.1X, the switch drops any traffic coming from any other MAC address on that port. If the authenticated device logs off or the session times out, the port becomes available for a new device, but never more than one simultaneously. * Supplicant Mode: Multiple (Option B):
This mode allows multiple supplicants to authenticate individually. Each MAC address must go through its own authentication process. This would allow more than one device, which is the opposite of the user ' s requirement.
MAC RADIUS Restrict (Option A): This feature is used to force MAC-based authentication and does not inherently limit the number of devices to one in the same way that changing the supplicant mode does.
Maximum EAPOL requests (Option D): This parameter defines how many times the switch will send an EAP- Request/Identity frame to a supplicant before giving up. Changing this to 1 does not restrict the number of devices allowed on the port; it only changes the retry logic for a single authentication attempt.
Configuration Example for Junos OS 24.4: To implement this change, you would use the following command: set protocols dot1x edit interface ge-0/0/10.0 supplicant-mode single-secure
質問 # 123
You must implement EVPN signaling on an EX Series device that is configured with both underlay and overlay networks. Which network protocol accomplishes this task?
正解：D
解説：
In an EVPN-VXLAN architecture, the network is divided into two distinct planes: the Underlay and the Overlay.
* Underlay (IP Fabric): The underlay's only job is to provide IP reachability between the loopback addresses of all VTEPs (Virtual Tunnel Endpoints). This is typically achieved using OSPF, IS-IS, or EBGP.
* Overlay (EVPN Control Plane): The overlay is responsible for carrying Layer 2 MAC and Layer 3 IP reachability information between switches. EVPN signaling is the standard mechanism for this task.
* Protocol Choice (Option D): EVPN uses MP-BGP (Multiprotocol BGP) as its control plane protocol. On Juniper EX Series and QFX Series switches, the most scalable and recommended design for the overlay is EBGP (External BGP).
* In a 3-stage or 5-stage Clos architecture, EBGP is used in the overlay to exchange EVPN routes (Route Types 1-5) between Leaf and Spine switches.
* EBGP simplifies configuration by avoiding the need for Route Reflectors (required for IBGP) and provides better control over route propagation through BGP community and policy management.
Incorrect Options:
* Options A and B refer to the underlay protocols. While they provide the path for the VXLAN tunnels, they do not handle the EVPN signaling itself.
* Option C (MPLS) is a different transport technology. While EVPN can run over MPLS (EVPN- MPLS), campus designs on EX series devices specifically use VXLAN as the data plane, making EBGP the standard signaling protocol for the EVPN-VXLAN overlay.
質問 # 124
How does OSPFv3 address the need for scalability in larger network deployments?
正解：B
質問 # 125
Which two statements correctly describe how EX Series switches use captive portal for Layer 2 authentication? (Choose two.)
正解：A、B
解説：
On EX Series switches, the captive portal is the default Layer 2 authentication method applied before other methods like 802.1X or MAC RADIUS. It also serves as a fallback mechanism for clients that fail 802.1X or MAC RADIUS authentication, allowing network access through a web- based login.
質問 # 126
What is a supplicant in 802.1x authentication?
正解：D
質問 # 127
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人生にはいろいろな可能性があります。挑戦すれば、成功するかもしれません。JN0-650試験は多くの人にとって重要な試験です。そして、難しいです。しかし、JN0-650復習教材を利用すれば、ずべてのことは簡単になります。つまり、JN0-650試験をパスしたい場合、JN0-650復習教材は不可欠です。
JN0-650日本語版試験勉強法: https://www.japancert.com/JN0-650.html
P.S. JapancertがGoogle Driveで共有している無料かつ新しいJN0-650ダンプ：https://drive.google.com/open?id=1Ibg5xWylgPcTyXJMtA1-Ye0b-dPmgB6T