JN0-650 Musterprüfungsfragen & JN0-650 Vorbereitung

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Juniper JN0-650 Prüfungsplan:

ThemaEinzelheiten
Thema 1
  • 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.
Thema 2
  • 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.
Thema 3
  • 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.
Thema 4
  • IP Telephony Features: This section focuses on features supporting VoIP deployments including Power over Ethernet, LLDP
  • LLDP-MED protocols, and voice VLAN implementation.
Thema 5
  • 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.
Thema 6
  • EVPN: This section addresses Ethernet VPN technology for Layer 2 over Layer 3 connectivity, covering EVPN route types, VXLAN encapsulation, and multi-homing configurations.

>> JN0-650 Musterprüfungsfragen <<

JN0-650 Enterprise Routing and Switching, Professional (JNCIP-ENT) neueste Studie Torrent & JN0-650 tatsächliche prep Prüfung

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Juniper Enterprise Routing and Switching, Professional (JNCIP-ENT) JN0-650 Prüfungsfragen mit Lösungen (Q90-Q95):

90. Frage
While deploying class of service on an EX Series switch, what are two aspects of the scheduler? (Choose two.)

Antwort: A,D

Begründung:
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.


91. Frage
Referring to the configuration shown in the exhibit, how many of the routes received from 10.0.0.2 will be active in the routing table?

Antwort: B


92. Frage
Exhibit.
Referring to the exhibit, which statement is correct?

Antwort: A

Begründung:
In OSPF, the election of aDesignated Router (DR)and aBackup 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 bothdevice1anddevice2have their OSPF interface priority explicitly set to0. According to the Junos OS 24.4 OSPF implementation:
* Ineligibility (Priority 0):A router with a priority of 0 is strictlyineligibleto 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, the2-Way stateindicates that bidirectional communication has been established (each router has seen itself in the other's Hello packets). However, to progress to theExstartandExchangestates 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 bestuck in the 2-Way state.
Adjacencies only reach theFullstate with the DR and BDR; routers in a "DROther" role remain in 2- Way with each other.
Option A and Dare incorrect because the router ID (IP address) only acts as a tiebreaker if priorities are equal andgreater than 0.Option Bis incorrect because routers cannot reach the Exstart state (where they negotiate master/slave for database exchange) without first having a DR/BDR elected.


93. Frage
When a BA classifier, an input policer, and a multifield (MF) classifier are all applied on ingress, what is the effective processing order in Junos OS?

Antwort: A


94. Frage
You have a workstation and an IP phone that connect to the same physical port on your Juniper switch.
Which two statements are true? (Choose two.)

Antwort: B,D


95. Frage
......

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JN0-650 Vorbereitung: https://www.zertpruefung.ch/JN0-650_exam.html

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