為什麼大多數人選擇Fast2test，是因為Fast2test的普及帶來極大的方便和適用。是通過實踐檢驗了的，Fast2test提供 Juniper的JN0-352考試認證資料是眾所周知的，許多考生沒有信心贏得 Juniper的JN0-352考試認證，擔心考不過，所以你得執行Fast2test Juniper的JN0-352的考試培訓資料，有了它，你會信心百倍，真正的作了考試準備。
| Section | Objectives |
|---|---|
| IS-IS | - Adjacencies and troubleshooting - Levels, areas and metrics - Link-state database and PDUs |
| Tunnels | - GRE and IP-IP configuration and troubleshooting - IP tunneling concepts |
| High Availability | - VRRP, NSR, NSB and BFD - Virtual chassis and graceful restart - Link Aggregation Groups and RTG |
| BGP | - EBGP and IBGP peer interactions - Attributes and path selection - BGP basic operations and message types |
| Layer 2 Switching and VLANs | - Native VLANs and voice VLANs - Inter-VLAN routing - Ports and VLAN tagging - Bridging components - Frame processing |
| Layer 2 Security | - Port security (MAC limiting, DHCP snooping, DAI, IP source guard) - MACsec and storm control - Layer 2 firewall filters - BPDU, loop and root protection |
| OSPF | - Areas and LSA types - Link-state database and packet types - Router ID, adjacencies and neighbors |
| Spanning Tree | - Convergence and reconvergence - Bridge Protocol Data Units (BPDUs) - STP and RSTP concepts, roles and states |
| Protocol-Independent Routing | - Load balancing and filter-based forwarding - Martian addresses and RIB groups - Static, aggregate, generated routes |
你現在正在為了尋找Juniper的JN0-352認證考試的優秀的資料而苦惱嗎？不用再擔心了，這裏就有你最想要的東西。應大家的要求，Fast2test為參加JN0-352考試的考生專門研發出了一種高效率的學習方法。大家都是一邊工作一邊準備考試，這樣很費心費力吧？為了避免你在準備考試時浪費太多的時間，Fast2test為你提供了只需要經過很短時間的學習就可以通過考試的JN0-352考古題。這個考古題包含了實際考試中一切可能出現的問題。所以，只要你好好學習這個考古題，那麼通過JN0-352考試就不再是難題了。
問題 #62
You want to prevent rogue BPDUs from lab devices reaching the internal through the Lab_Switch device.
Referring to the exhibit, what should be done to accomplish this task?
答案：C
問題 #63
You have configured a GRE tunnel from your local router with tunnel source 10.0.0.1 to a remote router at destination 192.168.0.1. The tunnel is functioning until you commit set routing-options static route 0.0.0.0/0 next-hop gr-0/0/0. This configuration causes the tunnel to go down. Which statement is correct in this scenario?
答案：B
解題說明：
A GRE tunnel's outer, delivery-layer packets are forwarded using the router's ordinary underlay routing table, meaning the tunnel destination address (192.168.0.1 in this case) must itself be resolvable to a physical, non-tunnel next hop for the encapsulated packets to actually leave the router. Before this configuration change, the default route (or some more specific route) presumably pointed toward a real physical next hop, allowing the router to reach 192.168.0.1 and keep the tunnel operational. When the administrator commits a static default route of 0.0.0.0/0 with a next hop of gr-0/0/0, every destination lookup that previously fell back to the default route -- including the lookup for the tunnel's own destination address, 192.168.0.1, since no more specific route exists for it -- now recurses through the GRE interface itself. This creates a circular dependency: the router needs to route to 192.168.0.1 to keep the tunnel up, but the only route it has to reach 192.168.0.1 now points back into the tunnel that requires 192.168.0.1 to already be reachable, so the interface's next-hop resolution fails and the tunnel drops. This is an entirely valid and common GRE design pitfall rather than any platform restriction; GRE interfaces can be legitimately used as static route next hops, do not require loopback-sourced encapsulation, and do not require a /32 host route to resolve their destination, provided that route does not recursively point back through the tunnel.
問題 #64
Which two statements about redundant trunk groups on EX Series switches are correct? (Choose two.)
答案：A,C
解題說明：
Redundant trunk groups are designed to provide link redundancy. If the primary link fails, the secondary link will automatically take over to ensure continued connectivity.
In redundant trunk groups, while regular data traffic is sent over the primary link, Layer 2 control traffic (such as STP, LACP, etc.) is allowed on the secondary link to maintain network stability and protocol operations.
https://www.juniper.net/documentation/us/en/software/junos/multicast-l2/topics/topic-map/redundant-trunk-groups.html
問題 #65
What are three valid OSPF adjacency states? (Choose three.)
答案：C,D,E
解題說明：
OSPF neighbor state progression, as defined in RFC 2328 and displayed by Junos through show ospf neighbor, moves through a well-defined set of named states: Down, Attempt, Init, 2-Way, ExStart, Exchange, Loading, and Full. Down is the initial state, indicating no Hello packets have been recently received from a potential neighbor on that interface; it is a genuine, valid OSPF state and is correctly included here. Init indicates that a Hello packet has been received from the neighbor, but that neighbor has not yet listed the local router's own router ID within its Hello packet, so bidirectional communication has not yet been confirmed; this too is a standard, valid state. Loading occurs after the Exchange state, during which Database Description packets have been fully exchanged and the router is now actively requesting the specific, more-detailed LSAs it identified as missing or outdated from its neighbor via Link State Request packets; it is likewise a standard, valid OSPF neighbor state. 'Established' is not an OSPF state at all -- that terminology belongs to BGP's finite state machine, where Established represents the fully operational session state; the OSPF equivalent concept is instead called Full. 'Reject' is not a recognized OSPF neighbor state under any circumstance and does not appear anywhere in the RFC 2328 state machine, making it an invalid distractor as well.
問題 #66
You need to configure a Juniper Networks EX Series Switch to be able to accept both tagged and untagged traffic on the same access port.
Which feature will allow you to accomplish this task?
答案：A
解題說明：
Voice VLAN is the Junos feature specifically designed to allow a single access port to simultaneously handle two distinct traffic streams: untagged data traffic from a PC or workstation using the port's normal access VLAN, and separately tagged voice traffic generated by an IP telephone that is typically daisy-chained between the switch port and the connected PC. When voice VLAN is configured on an access interface, the switch instructs the attached IP phone (commonly via LLDP-MED) which VLAN ID to tag its voice traffic with, and the switch is then able to correctly classify and prioritize that tagged voice traffic into its designated voice VLAN while simultaneously continuing to treat any untagged frames arriving on that same physical port as belonging to the port's regular, untagged access VLAN - precisely satisfying the requirement to accept both tagged and untagged traffic together on one access port. Native VLAN, by contrast, is a trunk- port-only concept that designates which VLAN untagged frames on a trunk should be associated with; it has no applicability to an access port and does not enable simultaneous tagged traffic acceptance there. Default VLAN simply refers to the VLAN an interface belongs to absent other configuration and carries no dual- traffic capability. IRB interfaces provide Layer 3 gateway functionality for a VLAN and are unrelated to how tagged versus untagged frames are accepted at Layer 2 on a given physical port. Reference topics: Junos Enterprise Switching - VLANs, Configuring Voice VLAN on Access Interfaces.
問題 #67
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在IT行業中工作的人們現在最想參加的考試好像是Juniper的認證考試吧。作為被廣泛認證的考試，Juniper的考試越來越受大家的歡迎。其中，JN0-352認證考試就是最重要的一個考試。這個考試的認證資格可以證明你擁有很高的技能。但是，和考試的重要性一樣，這個考試也是非常難的。要通过考试是有些难，但是不用担心。Fast2test可以帮助你通过JN0-352考试。
JN0-352資料: https://tw.fast2test.com/JN0-352-premium-file.html