「私はだめです。」という話を永遠に言わないでください。これは皆さんのためのアドバイスです。難しいJuniperのJN0-352認定試験に合格する能力を持たないと思っても、あなたは効率的な骨の折れないトレーニングツールを選んで試験に合格させることができます。JPNTestのJuniperのJN0-352試験トレーニング資料はとても良いトレーニングツールで、１００パーセントの合格率を保証します。それに、資料の値段は手頃です。JPNTestを利用したらあなたはきっと大いに利益を得ることができます。ですから、「私はだめです。」という話を言わないでください。諦めないのなら、希望が現れています。あなたの希望はJPNTestのJuniperのJN0-352試験トレーニング資料にありますから、速く掴みましょう。
| Section | Objectives |
|---|---|
| Topic 1: Layer 2 Security | - Port security (MAC limiting, DHCP snooping, DAI, IP source guard) - MACsec and storm control - BPDU, loop and root protection - Layer 2 firewall filters |
| Topic 2: IS-IS | - Link-state database and PDUs - Levels, areas and metrics - Adjacencies and troubleshooting |
| Topic 3: Spanning Tree | - Bridge Protocol Data Units (BPDUs) - Convergence and reconvergence - STP and RSTP concepts, roles and states |
| Topic 4: Tunnels | - GRE and IP-IP configuration and troubleshooting - IP tunneling concepts |
| Topic 5: Protocol-Independent Routing | - Martian addresses and RIB groups - Load balancing and filter-based forwarding - Static, aggregate, generated routes |
| Topic 6: OSPF | - Router ID, adjacencies and neighbors - Areas and LSA types - Link-state database and packet types |
| Topic 7: Layer 2 Switching and VLANs | - Frame processing - Native VLANs and voice VLANs - Bridging components - Ports and VLAN tagging - Inter-VLAN routing |
| Topic 8: BGP | - BGP basic operations and message types - EBGP and IBGP peer interactions - Attributes and path selection |
| Topic 9: High Availability | - Link Aggregation Groups and RTG - Virtual chassis and graceful restart - VRRP, NSR, NSB and BFD |
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質問 # 14
You implement FBF on router R1 so that traffic from subnet 172.25.0.0/24 uses ISP-A and traffic from subnet 172.25.1.0/24 uses ISP-B. You create forwarding instances for ISP-A and ISP-B.
You also configure static default routes inside each instance. However, the static default routes remain inactive. In this scenario, which action would complete the FBF implementation?
正解：D
解説：
A classic and well-documented gotcha in filter-based forwarding deployments is that the static default route configured inside each forwarding instance frequently references a next-hop address that Junos cannot resolve, simply because the interface and other directly connected routes needed to validate that next hop as reachable exist only in the master inet.0 table by default, not automatically inside the newly created forwarding instance's own table. Since a static route's next hop must be resolvable against routes present within its own routing table to become active, the static default routes inside the ISP-A and ISP-B forwarding instances remain inactive precisely because the necessary interface/next-hop routes were never made visible inside those instances. The standard solution taught for this exact FBF scenario is to configure a routing information base (RIB) group that explicitly imports the relevant interface routes between the master inet.0 table and each forwarding instance's table, allowing the static default route's next hop inside each instance to resolve correctly against the leaked routes and become active.
Applying a firewall filter without ever attaching it to an interface accomplishes nothing, since an unapplied filter never evaluates any traffic. Increasing the static route's preference value only affects which competing route wins selection and does nothing to resolve an unreachable next hop. Changing the instance type away from forwarding (to virtual-router) would in fact break FBF entirely, since filter-based forwarding specifically depends on the forwarding instance type working together with a routing-instance firewall filter action.
質問 # 15
You want to use filter-based forwarding (FBF) on your Internet peering router to load-balance traffic to two directly connected ISPs based on the source address. Which two statements are correct in this scenario? (Choose two.)
正解：A、D
解説：
Option B is correct. Filter-based forwarding (FBF), also known as Policy Based Routing (PBR), uses the forwarding routing instance type.
Option C is correct. Routing Information Base (RIB) groups are used to copy routes from one routing table to another. In the context of FBF, RIB groups can be used to copy routes from the inet.0 routing table.
Option A is incorrect. FBF does not use the no-forwarding routing instance type. Option D is incorrect. RIB groups are not used to hide routes in the inet.0 routing table. They are used to share or copy routes between different routing tables.
質問 # 16
Referring to the exhibit, which two configuration changes must you apply for packets to reach from R1 to R3 using IS-IS? (Choose two.)
正解：A、C
解説：
A) On R1, enable Level 1 on the ge-0/0/1 interface. In IS-IS, both levels (Level 1 and Level 2) are enabled by default when you enable IS-IS on an interface1. Level 1 systems route within an area.
If the destination is outside an area, Level 1 systems route toward a Level 2 system. Therefore, enabling Level 1 on the ge-0/0/1 interface on R1 would allow packets to reach from R1 to R3.
D) On R3 enable Level 1 on the ge-0/0/4 interface Similarly, enabling Level 1 on the ge-0/0/4 interface on R3 would allow packets to reach from R1 to R3. These explanations are based on the IS-IS configuration documents and learning resources available at Juniper Networks1 and Cisco.
質問 # 17
Based on the traceoptions output shown in the exhibit, what is the problem with the adjacency?
正解：D
質問 # 18
Which statement is true about Layer 2 firewall filters on EX Series switches?
正解：C
質問 # 19
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JN0-352テスト模擬問題集: https://www.jpntest.com/shiken/JN0-352-mondaishu