揮灑如椽之巨筆譜寫生命之絢爛華章，讓心的小舟在波瀾壯闊的汪洋中乘風破浪，直濟滄海。如何才能到達天堂，捷徑只有一個，那就是使用KaoGuTi Juniper的JN0-352考試培訓資料。這是我們對每位IT考生的忠告，希望他們能抵達夢想的天堂。
| Section | Weight | Objectives |
|---|---|---|
| IS-IS | 10-15% | - Configuration and route exchange - Adjacency establishment, levels and metrics - Scalable enterprise deployment and troubleshooting |
| Layer 2 Switching and VLANs | 15-20% | - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration - VLAN concepts, configuration, trunking and tagging - Link Aggregation Groups (LAG) and Virtual Chassis |
| IP Multicast | 5-10% | - PIM Dense Mode, Sparse Mode and RP mechanisms - IGMP operation and configuration - Multicast routing monitoring and troubleshooting |
| Protocol Independent Routing | 10-15% | - Routing instances and route selection criteria - Routing tables, static routes and route preference - Basic routing policy and filter operation |
| BGP | 15-20% | - Neighbor relationships and session establishment - Routing policies, filtering and common troubleshooting - Route advertisement, attributes and path selection |
| Layer 2 Security | 10-15% | - DHCP snooping, Dynamic ARP Inspection and IP Source Guard - Port security, MAC limiting and storm control - Layer 2 firewall filters and security features |
| OSPF | 15-20% | - Route summarization and redistribution - Neighbor formation, area design and LSA types - Configuration, verification and troubleshooting |
| Tunnels and Overlays | 5-10% | - Tunnel types, encapsulation and operation - Overlay network design and connectivity - GRE, IP-IP and dynamic tunnel configuration |
| High Availability and Resiliency | 5-10% | - Redundancy protocols and failover mechanisms - Graceful restart and non-stop routing - Network resiliency design and troubleshooting |
在如今競爭激烈的IT行業中，通過了Juniper JN0-352 認證考試是有很多好處的。因為有了Juniper JN0-352 認證證書就可以提高收入。拿到了Juniper JN0-352 認證證書的人往往要比沒有證書的同行工資高很多。可是Juniper JN0-352 認證考試不是很容易通過的，所以KaoGuTi是一個可以幫助你增長收入的網站.
問題 #71
A GRE tunnel is experiencing fragmentation issues. You confirm that the tunnel is up and is functioning correctly. You confirm that hosts are sending 1500-byte packets. In this scenario, which statement is correct?
答案：A
解題說明：
GRE encapsulation adds a fixed 24 bytes of overhead to every packet it carries -- 4 bytes for the GRE header itself and 20 bytes for the new outer IPv4 delivery header. When a host transmits a full 1500-byte Ethernet payload into a gr- interface, the resulting encapsulated packet becomes
1524 bytes, which exceeds the physical interface's standard 1500-byte MTU and forces fragmentation or drops if the don't-fragment bit is set. The correct remediation is to reduce the effective MTU seen by end hosts so that encapsulated packets never exceed the physical link's transmission limit. Junos automatically applies this logic to gr-logical interfaces, which default to a
1476-byte protocol MTU (1500 minus 24), but when the underlying physical interface or a manually configured path is involved, administrators must explicitly size the interface MTU to
1476 bytes to prevent post-encapsulation oversize packets. Allowing fragmentation with clear- dont-fragment is a workaround that increases CPU load and can degrade performance rather than solving the root cause, BFD addresses link-failure detection rather than MTU sizing, and ToS copying affects only the type-of-service byte, not packet length.
問題 #72
Which two statements are true about an EX2300 device? (Choose two.)
答案：B,D
問題 #73
You are asked to deploy nonstop active routing (NSR) on a dual-Routing Engine platform. In this scenario, what are two additional requirements for proper operation? (Choose two.)
答案：A,C
解題說明：
Nonstop active routing is specifically engineered to be completely transparent to the rest of the network: rather than relying on neighboring routers to preserve state during a Routing Engine switchover the way graceful restart does, NSR keeps a fully synchronized instance of the routing protocol process (rpd) running continuously on the backup Routing Engine, mirroring protocol adjacencies, the RIB, and session state in real time. Because neighbors never observe a session reset or restart signal during an NSR-driven switchover, there is no dependency on those neighbors supporting or enabling graceful restart extensions at all -- this is the core architectural advantage that distinguishes NSR from GR and is precisely why the first and third answer choices are incorrect distractors. What NSR does require locally is Graceful Routing Engine Switchover (GRES) enabled first, since NSR is built as an extension on top of GRES and depends on it to synchronize kernel and interface state between the two Routing Engines before protocol-level synchronization can occur. Additionally, Juniper's official guidance mandates that both Routing Engines run the identical Junos OS software version; mismatched versions between the primary and backup Routing Engine can introduce incompatible internal data structures or feature behavior during state replication, jeopardizing the integrity of a switchover and is explicitly called out as a hard operational requirement rather than a mere best practice.
問題 #74
Which two statements are correct about link aggregation? (Choose two.)
答案：A,D
問題 #75
Which command solves the error that you see in the exhibit?
答案：D
解題說明：
The error in the exhibit occurs because an access interface can only be a member of one VLAN, but it is currently configured with the "default" VLAN and is trying to be added to VLAN "v11." To resolve the issue, the correct command is:
delete ge-0/0/2 unit 0 family ethernet-switching vlan members default
This command removes the interface from the "default" VLAN, allowing it to be part of VLAN
"v11" as intended.
問題 #76
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