[2026年08月06日] 検証済みのJN0-650問題集と124格別な問題
JN0-650問題集合格保証付きの合格できるJN0-650試験2026年更新
Juniper JN0-650 認定試験の出題範囲：
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質問 # 34
Click the Exhibit button.
Which well-known community needs to be used to restrict 10.0.0.0/8 from being advertised to AS 2?
- A. no-advertise
- B. no-export-subconfed
- C. no-export
- D. no-publish
正解：C
質問 # 35
You are using 802.1X in your access network consisting of EX Series switches. You recently had a failure with your RADIUS server which resulted in authenticating client devices being denied access to the network.
You want to change this behavior so that authenticating clients are directed to a remediation VLAN.
Which RADIUS server failback setting satisfies this requirement?
- A. move
- B. permit
- C. deny
- D. sustain
正解：A
質問 # 36
When implementing BGP routing policy, which Junos policy-statement term action can be used to reject a route?
- A. reject
- B. accept
- C. next term
- D. next policy
正解：A
質問 # 37
Which two options are MAC limit actions? (Choose two.)
- A. drop
- B. tcp-reset
- C. log
- D. forwarding-class
正解：A、C
質問 # 38
Referring to the exhibit, which two statements are true? (Choose two.)
- A. The device is not a physical phone.
- B. The IP address of this device is 10.0.1.32.
- C. The device is connected to port 1 on the switch.
- D. The type of device is a physical phone.
正解：B、D
質問 # 39
OSFP is stuck in the ExStart state.
What is a common cause of this problem?
- A. The DR priority is configured incorrectly.
- B. IP addresses are not configured correctly.
- C. MTUs do not match.
- D. Jumbo frames are not enabled.
正解：C
質問 # 40
Exhibit:
You are configuring dynamic rendezvous points for your PIM multicast domain. You have chosen to use auto-RP as the dynamic RP mechanism. You are not seeing the auto-RP announcements. Referring to the exhibit, which two configurations will solve this problem? (Choose two.)
- A. Configure the interfaces for sparse mode.
- B. Configure the dense-groups for addresses 224.0.1.39 and 224.0.1.40.
- C. Configure the interfaces for sparse-dense mode.
- D. Configure the rp for the mapping function.
正解：B、C
質問 # 41
Which Junos command displays the routes that are being received from a specific BGP neighbor?
- A. show bgp summary NEIGHBOR_IP
- B. show route receive-protocol bgp NEIGHBOR_IP
- C. show bgp neighbor NEIGHBOR_IP routes
- D. show route advertising-protocol bgp NEIGHBOR_IP
正解：B
質問 # 42
Which two statements are true regarding traffic forwarding in an OSPF environment? (Choose two.)
- A. Intra-area routes are always preferred over inter-area routes.
- B. Inter-area routes are always preferred over intra-area routes.
- C. The shortest cost path may not be chosen for forwarding.
- D. The shortest cost path is always chosen for forwarding.
正解：A、C
質問 # 43
Which two statements are correct about EVPN/VXLAN deployments? (Choose two.)
- A. VTEPs are used for encapsulating and de-encapsulating traffic entering and leaving the tunnels.
- B. VNIs are used for encapsulating and de-encapsulating traffic entering and leaving the tunnels.
- C. VNIs are used to identify broadcast domains within an EVPN/VXLAN environment.
- D. VTEPs are used to identify broadcast domains within an EVPN/VXLAN environment.
正解：A、C
解説：
VTEPs (VXLAN Tunnel Endpoints) perform the encapsulation and decapsulation of traffic entering and leaving VXLAN tunnels. VNIs (VXLAN Network Identifiers) are used to identify broadcast domains within the EVPN/VXLAN environment, mapping VLANs to VXLAN segments.
質問 # 44
Your organization uses 802.1X with a RADIUS server. If the RADIUS server stops responding, you want the fallback action to continue to permit access for devices that currently have authorization but deny any new access attempts. Which fallback action provides this capability?
- A. permit
- B. use-cache
- C. deny
- D. vlan-name
正解：B
解説：
The use-cache fallback action allows devices that have already been authorized by 802.1X to continue accessing the network if the RADIUS server becomes unavailable, while blocking any new authentication attempts. This provides continuity for authorized users without opening access to unauthorized devices.
質問 # 45
Referring to the exhibit, which TTL value will be sent to the LLDP neighbors?
- A. 90 seconds
- B. 200 seconds
- C. 120 seconds
- D. 400 seconds
正解：A
質問 # 46
You have an OSPF NSSA area that is also receiving IS-IS routes on the ASBR.
In this scenario, which LSA type is used to announce external IS-IS routes?
- A. Type 7
- B. Type 4
- C. Type 1
- D. Type 8
正解：A
質問 # 47
Exhibit
You are receiving the same BGP Internet routes on R1 from both upstream ISPs. You are asked to load- balance traffic destined to the Internet across both ISPs.
Referring to the exhibit, which BGP solution should you use?
- A. Use the damping feature on R1.
- B. Use the multipath multiple-as feature on R1.
- C. Use the multihop feature on R1.
- D. Use the prefix limit feature on R1
正解：B
解説：
In standard BGP operations, a router typically selects only one " best path " for a given destination prefix and installs that single path into the forwarding table. To utilize multiple paths for traffic forwarding (load- balancing), specific multipath features must be enabled.
BGP Multipath: This feature allows a router to install multiple equal-cost paths into the routing and forwarding tables. However, by default, BGP multipath requires that all candidate paths have the same neighboring Autonomous System (AS).
Multipath Multiple-AS (Option B): In the exhibit, R1 is receiving routes from ISP A (AS 65501) and ISP B (AS 65502). Since these are two different neighboring ASs, the standard multipath feature is not sufficient.
You must use the multipath multiple-as statement under the BGP group or neighbor hierarchy. This tells Junos to consider paths as equal even if they originate from different neighboring ASs, provided all other BGP path selection attributes (Local Preference, AS Path length, Origin, MED, etc.) are identical.
Why other options are incorrect: * Option A (multihop) is used for peering with routers that are not directly connected.
Option C (prefix limit) is a security and stability feature to limit the number of prefixes received from a neighbor.
Option D (damping) is used to penalize unstable, " flapping " routes to prevent constant routing table churn.
Configuration Example for Junos OS 24.4: To implement this on R1, you would use the following configuration:
set protocols bgp group < group-name > multipath multiple-as
質問 # 48
When configuring IS-IS on a Junos device, which statement is used to specify the level of an IS-IS router?
- A. set protocols isis interface level 1
- B. set protocols isis level 1
- C. set protocols isis lsp-gen-interval level 1
- D. set protocols isis level-capability level-1-2
正解：D
質問 # 49
Which two telephony features are available on EX Series switches? (Choose two.)
- A. call routing
- B. voicemail forwarding and retrieval
- C. class of service
- D. power over Ethernet
正解：C、D
質問 # 50
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