ちなみに、GoShiken JN0-364の一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=1jnknIN_IaH3rFdkWBRluSrJaQg7ZX7EN
IT業界での競争がますます激しくなるうちに、あなたの能力をどのように証明しますか。JuniperのJN0-364試験に合格するのは説得力を持っています。我々ができるのはあなたにより速くJuniperのJN0-364試験に合格させます。数年間の発展で我々GoShikenはもっと多くの資源と経験を得ています。改善されているソフトはあなたのJuniperのJN0-364試験の復習の効率を高めることができます。
| Section | Objectives |
|---|---|
| MPLS and Service Provider Technologies | - VPN services
|
| Troubleshooting and Operations | - Network troubleshooting methodology
|
| BGP and Routing Policy | - BGP fundamentals
|
| OSPF and IS-IS Routing Protocols | - IS-IS operation in service provider networks
|
| Service Provider Architecture & Junos Fundamentals | - Junos OS routing fundamentals
|
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質問 # 164
You are designing an MPLS network and want to ensure that traffic traverses an LSP between PE routers that follow an explicit path through the core. Which protocol would accomplish this task?
正解：B
解説：
In a Juniper Networks MPLS environment, the selection of a signaling protocol depends heavily on the requirement for traffic engineering and path control. To satisfy the requirement for anexplicit path-where the network architect defines specific hop-by-hop routers that the traffic must traverse-theResource Reservation Protocol (RSVP)is the necessary choice.
According to Juniper documentation, RSVP (specifically RSVP-TE) supports the use ofExplicit Route Objects (EROs). When you configure an LSP in Junos OS, you can define a path consisting of a series of IP addresses (strict or loose hops). RSVP then signals the LSP along that exact sequence of routers, reserving resources and establishing labels as it goes. This allows for precise control over the network's traffic patterns, enabling administrators to steer traffic away from congested links or toward specific high-bandwidth paths.
In contrast,LDP (Label Distribution Protocol)(Option D) is a "best-effort" signaling protocol. LDP strictly follows the Interior Gateway Protocol (IGP) shortest path. It does not support explicit paths or traffic engineering constraints; it simply builds a "mesh" of labels based on the existing routing table.IS-IS(Option C) is an IGP used to populate the routing table and TED but does not signal labels.BGP(Option A) is used for service delivery (like L3VPNs) but relies on an underlying transport LSP (built by RSVP or LDP) to reach its next hop. Therefore, only RSVP provides the mechanism for explicit path manipulation.
質問 # 165
Which two events cause a static route to be removed from a routing table? (Choose two.)
正解：C、D
解説：
In Junos OS, astatic routeis a manually configured entry in the routing table. Unlike dynamic routes, which have built-in timers and aging mechanisms, static routes are generally "permanent" as long as their conditions for validity are met.
1. Manual Removal (Option A):
Since static routes are explicitly defined by the administrator, the most direct way to remove one is through a configuration change. Using the delete routing-options static route <prefix> command followed by a commit will immediately remove the route from the Routing Information Base (RIB).
2. Next-Hop Reachability (Option B):
For a static route to be "active" and installed in the forwarding table, itsnext-hop must be reachable. If a static route points to a specific physical interface or an IP address on a local segment, and thatoutbound interface becomes unavailable(e.g., the link goes "Down"), the Junos kernel detects that the next-hop is no longer viable. Consequently, the route is marked as "hidden" or "inactive" and is removed from the active forwarding table to prevent traffic from being black-holed.
Why other options are incorrect:
* Aging (Option C):Static routes do not have an expiration timer based on traffic. Even if no packet is sent for years, the route remains as long as the interface is up.
* Remote Reachability (Option D):Standard static routes only track the status of the local interface or the immediate next-hop. They do not possess "end-to-end" visibility. If a host two hops away fails, the local router has no way of knowing this via the static route itself. To achieve this level of tracking, features likeRPM (Real-time Performance Monitoring)orBFD (Bidirectional Forwarding Detection)must be linked to the static route.
質問 # 166
During OSPF neighbor establishment, which packet type is used to describe the contents of the link-state database?
正解：B
解説：
In theOSPF (Open Shortest Path First)protocol, ensuring that all routers within an area have a synchronized Link-State Database (LSDB)is fundamental to building a consistent loop-free topology. During the adjacency formation process-specifically when transitioning from theExStartstate to theExchangestate- routers must determine what information they are missing from their neighbors without sending the entire database at once, which would be highly inefficient.
TheDatabase Description (DBD)packet, also known as a DDP, is the mechanism used for this summary exchange. According to Juniper Networks technical documentation, the DBD packet does not contain full Link-State Advertisements (LSAs). Instead, it contains only theLSA headers, which include the LSA type, the ID of the advertising router, and the sequence number.
By exchanging these headers, a Juniper router can compare the neighbor's database summary against its own local LSDB. If the router identifies a header in the DBD packet that represents a newer or missing entry, it records that LSA in its "Link-State Request List." This collaborative "handshake" ensures that only the necessary, updated information is requested in the subsequentLink-State Request (LSR)phase. It is important to distinguish this from theLink-State PDU (LSP)mentioned in Option D, which is actually the term used in the IS-IS protocol, not OSPF. In OSPF, the functional unit is the LSA, and the transport vehicle for the initial summary is the DBD packet. This methodical synchronization is what allows OSPF to scale effectively in large service provider environments.
質問 # 167
What are two types of SIDs used in segment routing? (Choose two.)
正解：B、C
質問 # 168
You are deploying link aggregation groups. By default, what are two considerations in this scenario? (Choose two.)
正解：B、D
解説：
When deploying Link Aggregation Groups (LAGs), two key default considerations are:
All member ports must have the same speed. This ensures consistent performance and proper aggregation since mismatched speeds can cause issues in traffic distribution and link stability.
Member links can reside on different members within a Multi-Chassis LAG (MC-LAG). MC-LAG allows member links of the aggregation group to be spread across different physical chassis, providing redundancy and load sharing across devices.
質問 # 169
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有効的なJuniper JN0-364認定資格試験問題集を見つけられるのは資格試験にとって重要なのです。我々GoShikenのJuniper JN0-364試験問題と試験解答の正確さは、あなたの試験準備をより簡単にし、あなたが試験に高いポイントを得ることを保証します。Juniper JN0-364資格試験に参加する意向があれば、当社のGoShikenから自分に相応しい受験対策解説集を選らんで、認定試験の学習教材として勉強します。
JN0-364テスト参考書: https://www.goshiken.com/Juniper/JN0-364-mondaishu.html
さらに、GoShiken JN0-364ダンプの一部が現在無料で提供されています：https://drive.google.com/open?id=1jnknIN_IaH3rFdkWBRluSrJaQg7ZX7EN