2026 Itcertkr 최신 JN0-364 PDF 버전 시험 문제집과 JN0-364 시험 문제 및 답변 무료 공유: https://drive.google.com/open?id=1kLcn6z-3zypqUFR_P2Bf_0tGDX1sroiT
모두 아시다시피Juniper JN0-364인증시험은 업계여서도 아주 큰 비중을 차지할만큼 큰 시험입니다. 하지만 문제는 어덯게 이 시험을 패스할것이냐이죠.Juniper JN0-364인증시험패스하기는 너무 힘들기 때문입니다. 다른사이트에 있는 자료들도 솔직히 모두 정확성이 떨어지는건 사실입니다. 하지만 우리Itcertkr의 문제와 답은 IT인증시험준비중인 모든분들한테 필요한 자료를 제공할수 있습니디. 그리고 중요한건 우리의 문제와 답으로 여러분은 한번에 시험을 패스하실수 있습니다.
| Section | Objectives |
|---|---|
| Topic 1: BGP and Routing Policy | - BGP fundamentals
|
| Topic 2: OSPF and IS-IS Routing Protocols | - IS-IS operation in service provider networks
|
| Topic 3: MPLS and Service Provider Technologies | - MPLS fundamentals
|
| Topic 4: Service Provider Architecture & Junos Fundamentals | - Service provider network design basics
|
| Topic 5: Troubleshooting and Operations | - Performance and monitoring
|
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질문 # 113
What is a key differentiator of generate routes from aggregate routes?
정답：D
설명：
Generated routes are a type of route that can be created to summarize and generate more specific routes within the routing table. Unlike aggregate routes, which summarize existing routes and inherit a next-hop, generated routes do not necessarily have to match an existing route and will have a next- hop of reject by default unless specified otherwise.
질문 # 114
You are configuring LDP in a service provider network. After enabling LDP on core interfaces, you notice that labels are being advertised for every loopback IPv4 address that is in your IGP. Which label distribution mode is being used in this scenario?
정답：D
설명：
In the context of theLabel Distribution Protocol (LDP), the method by which a router advertises labels to its neighbors is defined by itsLabel Advertisement Mode. According to Juniper Networks documentation and industry standards (RFC 5036), there are two primary modes:Downstream Unsolicited (DU)and Downstream on Demand (DoD).
InDownstream Unsolicited (DU)mode, which is the default behavior for Junos OS and most service provider implementations, an LSR (Label Switching Router) does not wait for a specific request from its neighbors.
Instead, as soon as the LSR learns a prefix through its Interior Gateway Protocol (IGP) and establishes an LDP session, it automatically generates a label for that prefix and advertises it to all of its LDP peers. This explains the scenario where labels appear for every loopback address in the IGP as soon as LDP is enabled.
DU mode is highly efficient for fast convergence because the labels are already present in the neighbors' databases before they are even needed for traffic forwarding.
By contrast,Downstream on Demand (DoD)requires a router to explicitly request a label for a specific prefix from its next-hop neighbor.Ordered Control (Option B)andIndependent Controlrefer to thetimingof label creation (whether a router waits for the next-hop to provide a label before creating its own), while Conservative Retention (Option A)refers to how a router stores labels it receives but doesn't currently use for forwarding. In the Junos default environment, LDP utilizesDownstream Unsolicitedadvertisement combined withOrdered ControlandLiberal Retentionto ensure a robust and rapidly converging MPLS control plane.
질문 # 115
A BGP router receives two routes to the same prefix. One route has a higher local preference, while the other has a shorter AS path. In this scenario, which route would be selected?
정답：B
설명：
TheBGP path selection algorithmis a deterministic process used by Juniper routers to select the single "best" path from the BGP table to be placed into the routing table (inet.0). This algorithm follows a specific, hierarchical set of rules. According to Juniper Networks technical documentation, the router evaluates attributes in a fixed order, and once a tie is broken at a specific step, the remaining steps are ignored.
The order of the primary BGP attributes in Junos OS is as follows:
* Highest Local Preference:This is the first attribute evaluated after the basic check for a reachable next hop. Local preference is used within an Autonomous System (AS) to prioritize one exit point over another.
* Shortest AS_PATH:If the local preference is equal, the router then evaluates the length of the AS_PATH attribute.
* Lowest Origin Code:(IGP < EGP < Incomplete).
* Lowest Multi-Exit Discriminator (MED).
In this specific scenario, the router compares a path with ahigher local preferenceagainst a path with a shorter AS path. Because theLocal Preferencecheck occurs at Step 1 and theAS_PATHcheck occurs later at Step 2, the router will select the path with the higher local preference immediately. The length of the AS path becomes irrelevant in this comparison because the tie was already broken by the local preference value.
This allows network administrators to override the default "shortest path" logic of BGP to prefer specific providers or links based on business requirements.
질문 # 116
You are a network architect designing a brand new network. You want to deploy RSVP LSPs in this network.
You are currently in the process of choosing whether to run OSPF or IS-IS as your interior gateway protocol.
In this scenario, which two statements are correct about IGP traffic engineering extensions in an RSVP network? (Choose two.)
정답：A,C
설명：
In a Juniper Networks environment, deployingRSVP-signaled LSPsrequires a functionalTraffic Engineering Database (TED). This database is populated by the Interior Gateway Protocol (IGP) using specific extensions that carry link-state information beyond simple reachability, such as available bandwidth, administrative groups (link coloring), and Maximum Reservable Bandwidth.
The behavior of these extensions differs betweenOSPFandIS-ISin Junos OS:
* OSPF (Option C):By default, OSPF is a "pure" routing protocol. To support RSVP-TE, it must carry Opaque LSAs (Type 10). According to Juniper documentation, you mustexplicitly configuretraffic engineering within the OSPF protocol hierarchy using the set protocols ospf traffic-engineering command. Without this command, OSPF will not flood the TE information required by the Constrained Shortest Path First (CSPF) algorithm, and LSPs will fail to establish.
* IS-IS (Option D):IS-IS was designed to be extensible through the use of TLVs (Type, Length, Value).
In Junos OS,IS-IS traffic engineering extensions are enabled by defaultonce the protocol is active.
As soon as you enable IS-IS on an interface, it begins to advertise the wide metrics and TE TLVs (like TLV 22 and 135) necessary for building the TED.
This distinction is a common design consideration for network architects. While IS-IS simplifies the rollout of MPLS by having TE enabled "out of the box," OSPF requires that extra configuration step to transition from a standard IGP to a TE-aware protocol.
질문 # 117
You are asked to configure interfaces on Juniper devices to support dual VLAN tags. In this scenario, which two interface statements would accomplish this task? (Choose two.)
정답：A,B
설명：
To supportdual VLAN tagging(often referred to as Q-in-Q or 802.1ad), a Juniper interface must be configured to process more than one 802.1Q header. In Junos OS, this is handled at the physical interface level ([edit interfaces <interface-name>]).
According to Juniper Service Provider documents, two primary configuration statements enable this capability:
* stacked-vlan-tagging (Option D):This is the traditional command used to enable an interface to accept frames with two VLAN tags. When this is enabled, the router expects an outer "service" tag and an inner "customer" tag. This is specifically used in provider edge scenarios where a service provider is tunneling multiple customer VLANs.
* flexible-vlan-tagging (Option A):This is a more modern and versatile command. It allows the interface to support a mix of different encapsulation types across different logical units. For example, with flexible-vlan-tagging, you can have one logical unit (unit 10) doing standard single-tagging and another logical unit (unit 20) doing dual-tagging (vlan-tags outer X inner Y). This is the preferred method on newer hardware (like the MX Series) because it provides the highest level of configuration flexibility.
Vlan-tagging (Option C)only enables the interface to support a single 802.1Q tag, andgigether-options (Option B)contains physical-layer settings like auto-negotiation or flow control, which do not influence VLAN encapsulation. Therefore, A and D are the correct mechanisms for enabling dual-tag support.
질문 # 118
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