Valid JN0-650 Exam Topics - JN0-650 Test Papers

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Juniper JN0-650 Exam Syllabus Topics:

Topic	Details
Topic 1	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 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	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.

>> Valid JN0-650 Exam Topics <<

Juniper - Valid Valid JN0-650 Exam Topics

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Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) Sample Questions (Q80-Q85):

NEW QUESTION # 80
Exhibit:

You are running OSPF as your IGP. The interfaces connecting two routers are in the ExStart state. You notice that something is incorrect with the configuration. Referring to the exhibit, which statement is correct?

A. The interface type is incorrect.
B. The MTU setting are incorrect.
C. The IP addresses are incorrect.
D. The subnet mask is incorrect.

Answer: B

NEW QUESTION # 81
Click the Exhibit button.

Referring to the exhibit output, which statement is correct?

A. The device with an IP address of 192.168.100.2 is attached to VNI 5010.
B. IP addresses 10.1.1.1 and 10.1.2.3 are connected to the same VNI.
C. The output shows the route distinguisher of the device sending the EVPN Type 2 routes.
D. The output shows the router ID of the device sending the EVPN Type 2 routes.

Answer: B

Explanation:
The output shows the EVPN MAC/IP table, where each entry includes the VNI and associated MAC/IP bindings. Both 10.1.1.1 and 10.1.2.3 are listed under the same VNI (5020), indicating that these IP addresses are connected to the same VXLAN segment.

NEW QUESTION # 82
What is the function of the RPF (Reverse Path Forwarding) in IP multicast?

A. To translate multicast to unicast traffic
B. To prevent loops by ensuring multicast traffic flows towards the source
C. To prioritize multicast traffic over unicast traffic
D. To encrypt multicast traffic

Answer: B

NEW QUESTION # 83
Exhibit.

Referring to the exhibit, which statement is correct?

A. The device with the highest IP address is elected as the DR.
B. The device with the lowest IP address is elected as the DR.
C. The OSPF state will be stuck in the 2Nay state
D. The OSPF state will be stuck in the Exstart state

Answer: C

Explanation:
In OSPF, the election of a Designated Router (DR) and a Backup Designated Router (BDR) is mandatory on broadcast and non-broadcast multi-access (NBMA) network types to manage link-state database synchronization efficiently.
The exhibit shows that both device1 and device2 have their OSPF interface priority explicitly set to 0.
According to the Junos OS 24.4 OSPF implementation:
* Ineligibility (Priority 0): A router with a priority of 0 is strictly ineligible to be elected as a DR or BDR for that segment.
* No Election Possible: When every router on a broadcast segment has a priority of 0, the election process cannot complete because there are no eligible candidates to fill the required roles.
* State Behavior (Stuck in 2-Way): In OSPF adjacency formation, the 2-Way state indicates that bidirectional communication has been established (each router has seen itself in the other's Hello packets). However, to progress to the Exstart and Exchange states on a multi-access network, routers must first identify a DR and BDR.
* Result: Since neither router can become the DR, they both wait indefinitely for a third party (with priority > 0) to take the lead. Consequently, the OSPF adjacency will be stuck in the 2-Way state.
Adjacencies only reach the Full state with the DR and BDR; routers in a "DROther" role remain in 2- Way with each other.
Option A and D are incorrect because the router ID (IP address) only acts as a tiebreaker if priorities are equal and greater than 0. Option B is incorrect because routers cannot reach the Exstart state (where they negotiate master/slave for database exchange) without first having a DR/BDR elected.

NEW QUESTION # 84
You have configured a EX Series switch for PoE to support telephone and access point equipment. You have used class mode power management.
Which statement is correct?

A. Class 3 power is reserved on a port until a device is connected to the port; the power class is adjusted according to the class of the connected device.
B. Devices that are not LLDP-MED capable are assigned class 3 power.
C. Devices that are not LLDP-MED capable cannot connect to the switch.
D. The power assigned to a port is not deducted from the power budget until a PoE device is connected to the port.

Answer: D

NEW QUESTION # 85
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