Viele der It-Pruefung JN0-364 Service Provider Routing and Switching, Specialist (JNCIS-SP) Prüfungsvorbereitung Antworten sind in Vielfache-Wahl-Fragen (MCQs) FormatQualität geprüften Service Provider Routing and Switching, Specialist (JNCIS-SP) Produkte viele Male vor der VeröffentlichungKostenlose Demo der Prüfung It-Pruefung JN0-364 an It-Pruefung. Um Ihre Zertifizierungsprüfungen reibungslos erfolgreich zu meistern brauchen Sie nur unsere Prüfungsfragen und Antworten zu Juniper JN0-364 （Service Provider Routing and Switching, Specialist (JNCIS-SP)）auswendigzulernen.
| Section | Objectives |
|---|---|
| Service Provider Architecture & Junos Fundamentals | - Service provider network design basics
|
| OSPF and IS-IS Routing Protocols | - OSPF configuration and troubleshooting
|
| BGP and Routing Policy | - Routing policy control
|
| MPLS and Service Provider Technologies | - MPLS fundamentals
|
| Troubleshooting and Operations | - Performance and monitoring
|
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63. Frage
By default, which two statements are correct about switch ports on a Junos device? (Choose two.)
Antwort: A,D
Begründung:
On a Junos device, trunk ports are configured to receive and transmit tagged traffic only, while access ports are configured to receive and transmit untagged traffic.
64. Frage
Which OSPF database packet determines which router is in charge of the database synchronization and the transferring of LSA headers between the two systems?
Antwort: C
Begründung:
The Database Description (DD) packets serve two main purposes:
1. determinining which router is in charge of the database synchronization
2. tansferring the LSA headers between the two systems
The Database Description (DBD) OSPF packet is used during the adjacency formation process to describe the contents of the topological database between routers. The routers exchange DBD packets to determine the master and slave relationship, which dictates the router in charge of the database synchronization.
65. Frage
You are using EBGP to connect to two upstream peers in the same AS. You want to make one of the links less preferred for traffic entering your network from the peer's AS.
Which feature should you use to achieve this goal?
Antwort: C
Begründung:
AS-path prepending artificially lengthens the AS-path attribute by adding additional instances of the local AS number when advertising routes to a specific external peer. Because BGP prefers routes with shorter AS paths, the upstream AS will consider the prepended path less attractive and will prefer the other link when sending traffic toward the network.
66. Frage
What are two types of BGP messages exchanged while in the Established state? (Choose two.)
Antwort: A,B
Begründung:
In theBorder Gateway Protocol (BGP)finite state machine (FSM), theEstablishedstate is the final and functional stage of a BGP peering session. According to Juniper Networks technical documentation, once a session reaches this state, the two peers have successfully exchanged Open messages and agreed upon session parameters (such as AS numbers, hold timers, and BGP identifiers). Only after the session is "Established" can the routers begin the actual exchange of network layer reachability information (NLRI).
The most frequent message type exchanged in the Established state is theUPDATEmessage. These messages are the heart of BGP operations; they are used to advertise new feasible routes to a peer or to withdraw routes that are no longer reachable. An UPDATE message contains path attributes (like AS-Path, Next-Hop, and Local Preference) and the associated prefixes. In a stable network, UPDATE messages are only sent when there is a change in the topology, adhering to BGP's incremental update philosophy.
The second message type that can be exchanged in this state is theNOTIFICATIONmessage. While ideally, a session stays established, any detected error-such as a hold timer expiration, a malformed update, or a manual "clear" command-will trigger the transmission of a NOTIFICATION message. This message informs the peer of the specific error code and immediately causes the BGP session to transition back to the Idle state, tearing down the TCP connection.
It is important to note thatOPENmessages (Option A) are only used during the session initialization phase to transition from the OpenConfirm state to Established.REQUEST(Option B) is not a valid BGP message type defined in the standard (RFC 4271); the closest equivalent in functionality would be a Route-Refresh message, which is a separate extension. Therefore, in the context of standard BGP operations within the Established state, Updates and Notifications are the correct answers.
67. Frage
Which statement is correct about IS-IS?
Antwort: B
Begründung:
IS-IS is a link-state routing protocol that uses a Shortest Path First (SPF) algorithm to create a topology map of the network. It floods link-state advertisements (LSAs) to all nodes within the network area to ensure each node has a consistent view of the network topology.
68. Frage
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