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| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Enterprise Routing and Switching, Professional (JNCIP-ENT) |
| Exam Number: | JN0-650 |
| Exam Price: | $400 USD |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 120 minutes |
| Available Languages: | Japanese, English |
| Related Certifications: | JNCIA-ENT (JN0-347) JNCIS-ENT (JN0-349) |
| Passing Score: | Pass / Fail (variable scale) |
| Exam Format: | Multiple Choice, Multiple Select, Drag and Drop, Simulation |
| Real Exam Qty: | 70-80 |
| Sample Questions: | Juniper JN0-650 Sample Questions |
| Exam Way: | Online Proctored (OnVue) / In-Person Testing Center (Pearson VUE) |
| Pre Condition: | JNCIA-ENT (JN0-347) or equivalent knowledge recommended; no mandatory prerequisite for exam eligibility |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/track-data-center.html |
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NEW QUESTION # 15
In OSPF, which LSA types are commonly included in a router's link-state database in a standard (non-NSSA) area? (Choose two)
Answer: A,C
NEW QUESTION # 16
Exhibit.
Referring to the exhibit. Ieaf2 is elected the designated forwarder
Which two statements are correct if server2 generates a broadcast frame*? (Choose two.)
Answer: A,D
Explanation:
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.
NEW QUESTION # 17
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?
Answer: B
Explanation:
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
NEW QUESTION # 18
You are implementing an EVPN-VXLAN edge-routed bridging design using Layer 3 gateway operations. In this scenario, which statement is correct?
Answer: C
Explanation:
In an EVPN-VXLAN edge-routed bridging design, distribution switches use anycast IRB addresses for Layer 3 gateways. This allows routing to occur at the distribution layer while maintaining consistent MAC-to-IP mapping across the VXLAN fabric.
NEW QUESTION # 19
You are securing Web access in the network by using captive portal.
Which two statements are true? (Choose two.)
Answer: B,D
NEW QUESTION # 20
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