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Juniper JN0-650 Exam Overview:

Certification Vendor:	Juniper Networks
Exam Name:	Enterprise Routing and Switching, Professional (JNCIP-ENT) Exam
Exam Number:	JN0-650
Related Certifications:	JNCIS-ENT JNCIE-ENT JNCIA-Junos
Exam Duration:	90 minutes
Real Exam Qty:	65
Exam Price:	$300 USD
Available Languages:	English
Certificate Validity Period:	3 years
Exam Format:	Multiple choice, Scenario-based
Passing Score:	65-75%
Recommended Training:	Advanced Routing & Switching (ARS) Training
Exam Registration:	Pearson VUE Registration
Sample Questions:	Juniper JN0-650 Sample Questions
Exam Way:	Online proctored or onsite at Pearson VUE test centers
Pre Condition:	Active JNCIS-ENT certification
Official Syllabus URL:	https://www.juniper.net/gb/en/training/certification/tracks/enterprise-routing-switching/jncip-ent.html

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Juniper JN0-650 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	IP Telephony Features: This section focuses on features supporting VoIP deployments including Power over Ethernet, LLDP LLDP-MED protocols, and voice VLAN implementation.
Topic 3	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 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	EVPN: This section addresses Ethernet VPN technology for Layer 2 over Layer 3 connectivity, covering EVPN route types, VXLAN encapsulation, and multi-homing configurations.

Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) Sample Questions (Q117-Q122):

NEW QUESTION # 117
Exhibit:

You are configuring BGP policies for a site with a dual-homed connection as shown in the exhibit. You must ensure that inbound traffic from Internet hosts flow through the ISP A connection. Which statement is correct in this scenario?

A. Apply a BGP export policy on R2 to assign a lower origin value to routes advertised to ISP B.
B. Apply a BGP export policy on R1 to assign a higher local preference value to routes advertised to ISP A.
C. Apply a BGP export policy on R1 to assign a lower MED value to routes advertised to ISP A.
D. Apply a BGP export policy to R2 to prepend [65001 65001 65001 65001 65001] to the AS path of routes advertised to ISP B.

Answer: D

NEW QUESTION # 118
While deploying class of service on an EX Series switch, what are two aspects of the scheduler? (Choose two.)

A. It identifies the priority of the queue to which it is assigned.
B. It provides DiffServ code translation.
C. It defines a buffer size of the queue to which it is assigned.
D. It defines interface rate-limiting.

Answer: A,C

Explanation:
In Junos OS Class of Service (CoS), schedulers are the fundamental components used to manage the resources of individual egress queues. They determine how the switch handles traffic for a specific forwarding class as it waits to exit an interface.
* Buffer Size (Option A): A scheduler defines the buffer size (memory allocation) for its assigned queue. This buffer holds packets during periods of congestion to prevent immediate packet loss. The size can be configured as a specific percentage of the total interface buffer, a temporal value in microseconds, or using the " remainder " of available space.
* Queue Priority (Option D): A scheduler identifies the priority of the queue. Junos supports multiple priority levels, such as low , medium-low , medium-high , and high . This setting dictates the order in which the transmission hardware services the queues; for example, high-priority queues are typically emptied before low-priority ones.
* Why other options are incorrect: Interface rate-limiting (Option B) is typically managed at the interface level or through policers , not the scheduler itself, which focuses on queue-specific transmission rates. DiffServ code translation (Option C) is the responsibility of rewrite rules , which modify the packet header markings as they leave the switch.

NEW QUESTION # 119
Exhibit

You are receiving the 203 0.113.0/24 route from both upstream ISPs You are asked to ensure that ISP A is the preferred ISP for traffic being sent to the 203.0.113.0/24 network from devices in AS 65512.
Referring to the exhibit, which two statements will accomplish this behavior? (Choose two.)

A. You should assign a local preference that is lower than 100 for the route learned from ISP A.
B. You should assign a local preference that is higher than 100 for the route learned from ISP A.
C. You should assign a local preference that is lower than 100 for the route learned from ISP B.
D. You should assign a local preference that is higher than 100 for the route learned from ISP B.

Answer: B,C

Explanation:
The exhibit illustrates an Autonomous System (AS 65512) receiving the same prefix ($203.0.113.0/24$) from two different neighbors, ISP A and ISP B. To influence outbound traffic from AS 65512 so that ISP A is preferred, you must manipulate the BGP Local Preference attribute.BGP Path Selection and Local Preference:
Local preference is the first attribute evaluated by BGP after checking if the next hop is reachable. A higher local preference value is always preferred over a lower one. The default value in Junos OS is 100.Applying the Preference (Option B): By applying an import policy on router R1 to set a local preference higher than
100 (e.g., 200) for routes from ISP A, R1, R2, and R3 will all prefer the path through R1 to reach ISP A.
Applying the Preference (Option C): Alternatively, you can achieve the same result by applying an import policy on R2 to set a local preference lower than 100 (e.g., 50) for routes from ISP B. Since the routes from R1 remain at the default of 100, the path through ISP A (100) will be preferred over ISP B (50).Why A and D are incorrect: Setting a lower preference for ISP A (Option A) or a higher preference for ISP B (Option D) would result in ISP B being preferred for outbound traffic, which is the opposite of the requirement.

NEW QUESTION # 120
Which two statements are true about 802.1Z dynamic filters based on RADUIS attributes? (Choose two.)

A. Filters can be defined on the network management system and deployed using vendor-specific attributes.
B. Filters can be defined on the authentication server and deployed using vendor-specific attributes.
C. Filters can be defined on the switch and deployed upon authentication.
D. Filters can be defined on an automation framework and deployed when triggered by an authentication syslog message.

Answer: B,C

NEW QUESTION # 121
Which two statements correctly describe how EX Series switches use captive portal for Layer 2 authentication? (Choose two.)

A. The captive portal is the default Layer 2 authentication method that is applied before other methods such as 802.1X or MAC RADIUS.
B. The captive portal is configured on Layer 3 interfaces and does not participate in Layer 2 authentication on EX Series switches.
C. The captive portal is used as a fallback mechanism for clients that fail 802.1X or MAC RADIUS authentication.
D. The captive portal authentication allowlist works for devices that do not have HTTP capabilities.

Answer: A,C

Explanation:
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.

NEW QUESTION # 122
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