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Juniper JN0-650 Exam Questions

Exam Name: Enterprise Routing and Switching, Professional
Exam Code: JN0-650 JNCIP-ENT
Related Certification(s): Juniper Enterprise Routing and Switching Certification
Certification Provider: Juniper
Number of JN0-650 practice questions in our database: 69 (updated: Mar. 30, 2026)
Expected JN0-650 Exam Topics, as suggested by Juniper :
  • Topic 1: 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.
  • Topic 2: 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.
  • Topic 3: IP Multicast: This domain addresses one-to-many communication using multicast routing, covering addressing, ASM vs SSM models, RPF, IGMP/snooping, PIM sparse-mode, rendezvous points, Anycast RP, MSDP, and routing policies.
  • Topic 4: 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.
  • Topic 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.
  • Topic 6: IP Telephony Features: This section focuses on features supporting VoIP deployments including Power over Ethernet, LLDP/LLDP-MED protocols, and voice VLAN implementation.
  • Topic 7: 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.
  • Topic 8: EVPN: This section addresses Ethernet VPN technology for Layer 2 over Layer 3 connectivity, covering EVPN route types, VXLAN encapsulation, and multi-homing configurations.
Disscuss Juniper JN0-650 Topics, Questions or Ask Anything Related
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Rusty

3 days ago
Initial nerves hit hard before the exam, but pass4success gave me clear paths through complex routing concepts and hands-on simulations that boosted my confidence. Stay persistent and believe in your prep.
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Sunny

10 days ago
Passing the Juniper exam was a great accomplishment. I couldn't have done it without the helpful resources from Pass4Success.
upvoted 0 times
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Tenesha

18 days ago
Understand the differences between VLAN trunking protocols like 802.1Q and how to configure them properly.
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Josefa

25 days ago
I passed the exam, and the guidance from Pass4Success practice questions on Interior Gateway Protocols helped me navigate OSPF vs IS-IS quirks under Junos, especially related to adjacency formation in multi-area OSPF. I was uncertain about a question on SPF tie-breaking with equal path costs and how router advertisements influence route selection, but the overall practice coverage kept me on track and I succeeded. What about the scenario where OSPF NSSA areas influence route redistribution into BGP?
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Norah

1 month ago
I'm thrilled to have passed the Juniper Certified: Enterprise Routing and Switching, Professional exam! Thanks to Pass4Success for the excellent preparation materials.
upvoted 0 times
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Albina

1 month ago
Passing the Juniper Enterprise Routing and Switching, Professional exam was a huge relief. Revise the key topics thoroughly using Pass4Success practice tests.
upvoted 0 times
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Kirby

2 months ago
Finished the Juniper ERS Professional exam today, and the emphasis on Layer 2 Authentication and Access Control finally clicked thanks to Pass4Success practice questions. There was one tricky item about 802.1X and how reauthentication interacts with dynamic VLAN assignment, which I was unsure about at first, yet the practice drills clarified the sequence of EAPOL messages and the role of RADIUS in enforcement; I ended up passing. Could you describe how you would design a policy to enforce dynamic VLAN assignment using 802.1X in a mixed access environment?
upvoted 0 times
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Willis

2 months ago
I was nervous at the start, unsure I could tackle the Juniper ERS Professional exam. Pass4Success walked me through concise, high-yield topics and timed practice that built my confidence, and I walked in ready. You got this—trust the process and keep practicing.
upvoted 0 times
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Leonard

2 months ago
I just cleared the Juniper Enterprise Routing and Switching, Professional exam, and the Pass4Success practice questions were instrumental in reinforcing the EVPN concepts and the way VXLAN overlays are built, along with the associated MAC learning behavior. I was a bit unsure about a question that asked how EVPN handles MAC mobility and the selective flooding rules in an MP-BGP control plane, but the practice set helped me reason through the control-plane signaling and route targets, and I still managed to pass. Do you recall a question about EVPN route types (Type-5 versus Type-2) and their implications for advertised MAC/IP routes?
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Maricela

2 months ago
Be prepared for questions on OSPF route summarization and how it can optimize routing table size.
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Nathalie

3 months ago
Pass4Success practice exams were a game-changer for me. Manage your time wisely and don't get bogged down on any single question.
upvoted 0 times
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Free Juniper JN0-650 Exam Actual Questions

Note: Premium Questions for JN0-650 were last updated On Mar. 30, 2026 (see below)

Question #1

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

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Correct Answer: C

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 can dynamically 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 on Layer 3 interfaces to advertise system identity and capabilities. This makes Option A incorrect.

Link-Local Protocol: LLDP frames use a specific multicast MAC address (01:80:c2:00:00:0e) that is not flooded or forwarded by switches. They are strictly link-local between two directly connected neighbors. This makes Option B incorrect.

Endpoint Focus: LLDP-MED is specifically designed for Media 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 makes Option D incorrect.


Question #2

You are asked to establish authentication for users connecting to the corporate network. You must ensure that only corporate devices that are identified by MAC addresses are allowed to authenticate and connect Authentication must be handled by a centralized database.

Which authentication method would you implement in this scenario?

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Correct Answer: A

Question #3

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

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Correct Answer: C

Question #4

Exhibit

Your network receives the full Internet BGP routing table from two different ISPs. You want your local routers to use Provider A to forward all Internet traffic as long as Provider A is available.

Referring to the exhibit, which two actions would satisfy this requirement? (Choose two.)

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Correct Answer: A, B

Question #5

You have configured DSCP CoS in your network and have applied BA and multifield classifiers to all interfaces.

In this scenario, which statement is correct?

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Correct Answer: A

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