JN0-352学習資料では、すべてのお客様が選択できる3つの異なるバージョンを設計しています。 3つの異なるバージョンには、PDFバージョン、ソフトウェアバージョン、オンラインバージョンが含まれ、お客様が質問を解決し、すべてのニーズを満たすのに役立ちます。 JN0-352学習資料の3つの異なるバージョンはすべてのお客様に同じデモを提供しますが、すべてのお客様の異なる固有のニーズを満たす特定の機能も備えています。 JN0-352学習教材のオンラインバージョンの最も重要な機能は実用性です。
| Section | Objectives |
|---|---|
| Layer 2 Switching and VLANs | - Frame processing - Native VLANs and voice VLANs - Ports and VLAN tagging - Bridging components - Inter-VLAN routing |
| Protocol-Independent Routing | - Martian addresses and RIB groups - Static, aggregate, generated routes - Load balancing and filter-based forwarding |
| OSPF | - Areas and LSA types - Link-state database and packet types - Router ID, adjacencies and neighbors |
| IS-IS | - Link-state database and PDUs - Adjacencies and troubleshooting - Levels, areas and metrics |
| High Availability | - Link Aggregation Groups and RTG - Virtual chassis and graceful restart - VRRP, NSR, NSB and BFD |
| Layer 2 Security | - MACsec and storm control - BPDU, loop and root protection - Layer 2 firewall filters - Port security (MAC limiting, DHCP snooping, DAI, IP source guard) |
| Tunnels | - GRE and IP-IP configuration and troubleshooting - IP tunneling concepts |
| BGP | - EBGP and IBGP peer interactions - Attributes and path selection - BGP basic operations and message types |
| Spanning Tree | - Convergence and reconvergence - Bridge Protocol Data Units (BPDUs) - STP and RSTP concepts, roles and states |
なぜ弊社は試験に失敗したら全額で返金することを承諾していますか。弊社のJuniperのJN0-352ソフトを通してほとんどの人が試験に合格したのは我々の自信のある原因です。JuniperのJN0-352試験は、ITに関する仕事に就職している人々にとって、重要な能力への証明ですが、難しいです。だから、弊社の専門家たちは尽力してJuniperのJN0-352試験のための資料を研究します。あなたに提供するソフトはその中の一部です。
質問 # 104 
Click the Exhibit button.
You configure the aggregate route 172.16.0.0/16 on router R1. The routing table currently contains active routes for 172.16.10.0/24 and 172.16.99.0/24. No other more-specific routes exist.
Referring to the exhibit, which statement describes what R1 would do with traffic destined to 172.16.200.5?
正解：C
解説：
The destination address 172.16.200.5 falls within the 172.16.0.0/16 aggregate's summarized range but does not fall within either of the two active, more-specific contributing routes actually present in the table -
172.16.10.0/24 and 172.16.99.0/24 - meaning no route more specific than the /16 itself exists to cover it.
Under Junos's longest-match forwarding logic, the lookup for 172.16.200.5 therefore resolves to the aggregate route itself, and since aggregate routes are installed by default with a reject next hop rather than any real forwarding path, the router drops the packet and simultaneously generates an ICMP destination-unreachable message back to the originating source, explicitly signaling that no valid path exists for that specific destination even though a covering summary is being advertised. This reject behavior is precisely why aggregate routes are valuable for reducing the number of routes advertised upstream while still providing clear, immediate feedback for traffic aimed at address space within the summary that has no genuine underlying route, rather than silently black-holing it or misdirecting it toward an unrelated contributing route's next hop. The aggregate route itself remains active and installed throughout this process - a gap in contributing coverage does not deactivate the aggregate, since the aggregate's activation depends only on at least one contributing route being active, which is satisfied here by both existing /24 blocks. There is also no default route present in this scenario to fall back upon. Reference topics: Junos Enterprise Routing - Protocol Independent Routing, Aggregate Route Reject Behavior for Uncovered Address Space.
質問 # 105
Which statement about aggregate routes is correct?
正解：D
解説：
Aggregate routes are used for advertising summarized network prefixes. They help minimize the number of routing tables in an IP network by consolidating selected multiple routes into a single route advertisement. This approach is in contrast to non-aggregation routing, in which every routing table contains a unique entry for each route.
Therefore, option D is correct. Options A, B, and C are not correct because:
Aggregate routes can be used with both static routing and dynamic routing protocols. Aggregate routes are not automatically generated for all of the subnets in a routing table. They need to be manually configured.
Aggregate routes are not always preferred over more specific routes. The route selection process in Junos OS considers several factors, including route preference and metric, before determining the active route.
質問 # 106
Which two statements are true about routing instances on Junos devices? (Choose two.)
正解：A、D
解説：
The virtual-router routing-instance type in Junos is a general-purpose instance type intended for creating isolated, independent routing and forwarding contexts within a single physical device for applications that have nothing to do with MPLS-based VPN services - common use cases include multi-tenant network segmentation, filter-based forwarding deployments, and simple traffic isolation between departments or customers on a shared switch or router, all of which are non-VPN-related applications by nature. Layer 2 and Layer 3 VPN services, by contrast, rely on a different, dedicated routing-instance type specifically named vrf, which integrates with MPLS/BGP-based VPN signaling, route distinguishers, route targets, and PE-CE routing exchange; virtual-router instances do not participate in that VPN signaling framework at all, which is why the statement associating virtual-router with VPN use is incorrect. Whenever an administrator creates any user-configured routing instance - regardless of its specific type - Junos automatically allocates and generates a brand-new, dedicated routing table for that instance, named according to the pattern instance- name.inet.0 (or the appropriate address-family suffix), which is entirely separate from and independent of the default master inet.0 table used by the global/default routing context. Because each new routing instance receives its own distinct table rather than sharing or defaulting into the master inet.0 table, the statement claiming instances automatically fall back to using inet.0 unless configured otherwise is factually incorrect; instances are isolated by design from the outset. Reference topics: Junos Enterprise Routing - Protocol Independent Routing, Routing Instance Types and Table Allocation.
質問 # 107
You are verifying a new BGP peering session with an ISP. You issue the show bgp summary command, but the output shows the peer in the Active state.
Which statement is correct in this scenario?
正解：D
解説：
The BGP finite state machine defined in RFC 4271 progresses through Idle, Connect, Active, OpenSent, OpenConfirm, and finally Established. The Active state is entered either directly after Idle, when the local router begins retrying a TCP connection setup toward the configured peer, or after a previous Connect attempt has failed and the ConnectRetry timer has expired, prompting the router to keep trying to complete the underlying TCP three-way handshake. Seeing a peer parked in Active therefore means the local device has a fully valid neighbor configuration and is persistently attempting to reach the remote address on TCP port 179, but the handshake is not succeeding - common root causes include a firewall or ACL blocking TCP 179 between the two endpoints, an unreachable or incorrect peer IP address, the remote BGP process not running or not listening, or an asymmetric routing path preventing the SYN/ACK from returning. It does not indicate a misconfiguration on the local box in the sense of a missing statement (that would typically leave the session as Idle), nor does it indicate an established, functioning session exchanging UPDATE messages (that state is Established), and it is not a deliberately idle/disabled condition, which Junos reports plainly as Idle.
Recognizing Active as 'trying to connect' rather than 'connected' is essential for correct BGP troubleshooting sequencing. Reference topics: Junos Enterprise Routing - BGP Fundamentals, BGP Finite State Machine and Session Verification.
質問 # 108
You have configured OSPF routing as shown in the exhibit. You notice that all interfaces have formed full adjacencies, with the exception of the interfaces connecting R3 and R4 with a status of 2Way.
What is the reason for this status?
正解：C
質問 # 109
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JN0-352練習問題は、試験に必要な人向けの安定した信頼できる試験問題プロバイダーです。 私たちは長い間市場にとどまって成長してきました。JN0-352トレーニングブレインダンプの優れた品質と高い合格率のため、私たちは常にここにいます。 安全な環境と効果的な製品については、数千人の候補者が当社のJN0-352学習ガイドを選択する用意があります。JN0-352学習教材を試してみてください。
JN0-352受験対策: https://www.it-passports.com/JN0-352.html