素敵なJN0-352試験概要 &合格スムーズJN0-352無料サンプル |効果的なJN0-352ファンデーション

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Juniper JN0-352 Exam Syllabus Topics:

Section	Weight	Objectives
Tunnels and Overlays	5-10%	- Overlay network design and connectivity - GRE, IP-IP and dynamic tunnel configuration - Tunnel types, encapsulation and operation
OSPF	15-20%	- Neighbor formation, area design and LSA types - Configuration, verification and troubleshooting - Route summarization and redistribution
High Availability and Resiliency	5-10%	- Network resiliency design and troubleshooting - Graceful restart and non-stop routing - Redundancy protocols and failover mechanisms
IS-IS	10-15%	- Scalable enterprise deployment and troubleshooting - Configuration and route exchange - Adjacency establishment, levels and metrics
Layer 2 Switching and VLANs	15-20%	- Link Aggregation Groups (LAG) and Virtual Chassis - VLAN concepts, configuration, trunking and tagging - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration
Protocol Independent Routing	10-15%	- Routing tables, static routes and route preference - Routing instances and route selection criteria - Basic routing policy and filter operation
IP Multicast	5-10%	- IGMP operation and configuration - Multicast routing monitoring and troubleshooting - PIM Dense Mode, Sparse Mode and RP mechanisms
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
BGP	15-20%	- Route advertisement, attributes and path selection - Routing policies, filtering and common troubleshooting - Neighbor relationships and session establishment

>> JN0-352試験概要 <<

JN0-352無料サンプル、JN0-352ファンデーション

テストに関する最も有用で効率的なJN0-352トレーニング資料を提供するために最善を尽くし、クライアントが効率的に学習できるように複数の機能と直感的な方法を提供します。 JN0-352の有用なテストガイドを学習すれば、時間と労力はほとんどかかりません。合格率とヒット率はどちらも高いため、テストに合格するための障害はほとんどありません。 Webで紹介を読んだ後、JN0-352学習実践ガイドをさらに理解できます。

Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) 認定 JN0-352 試験問題 (Q199-Q204):

質問 # 199
R1 was started at 4:00 PM. R2 and R3 were started at 6:00 PM. R4 was started at 10:00 PM. All routers are in Area 0 and there are no point-to-point links.
Referring to the exhibit, which router is the designated router?

A. R1
B. R2
C. R4
D. R3

正解：A

質問 # 200
Based on the output shown in the exhibit, which statement is correct?

A. This switch is currently blocking all traffic.
B. The ge-0/0/9 interface is using the default interface priority value.
C. This switch has a bridge priority of 8k.
D. The ge-0/0/15 interface is using the default port cost.

正解：C

質問 # 201
What are three well-known mandatory BGP attributes? (Choose three.)

A. next hop
B. local preference
C. origin
D. community
E. AS path

正解：A、C、E

質問 # 202
You have traffic for a video streaming application traversing a GRE tunnel in your network and users are reporting poor performance. Both ends of the tunnel are using the default settings for a gigabit Ethernet interface, but you observe excessive packet drops due to exceeding the MTU.
Which two steps would you take to improve connectivity for this application? (Choose two.)

A. Route the GRE tunnel through a higher bandwidth link.
B. Configure the clear-dont-fragment option on the member interfaces.
C. Increase the MTU for the member interfaces to 1524 bytes.
D. Increase the MTU for the member interfaces to 1500 bytes.

正解：B、C

質問 # 203
You have configured an aggregate route for prefix 10.20.0.0/22 with three contributing routes: 10.20.0.0/24,
10.20.1.0/24, and 10.20.2.0/24. A packet arrives destined to 10.20.3.100.
In this scenario, which action does the router take?

A. It forwards the packet using the next hop for the contributing route with the lowest preference.
B. It silently drops the packet and does not send an ICMP network unreachable message to the source.
C. It forwards the packet using the next hop defined for the aggregate route.
D. It drops the packet and sends an ICMP network unreachable message to the source.

正解：D

解説：
The 10.20.0.0/22 aggregate covers the four /24 blocks 10.20.0.0/24 through 10.20.3.0/24, but only the first three of those (10.20.0.0/24, 10.20.1.0/24, and 10.20.2.0/24) are configured and present as active contributing routes; 10.20.3.0/24, the block containing the destination address 10.20.3.100, has no corresponding contributing route in this configuration. Because no more-specific route exists for 10.20.3.100, the longest- match lookup falls through the missing /24 and matches only the broader /22 aggregate itself. By default, when Junos installs an aggregate route, it assigns that route a reject next hop rather than any usable forwarding next hop; this is a deliberate design choice so that traffic destined for gaps within an advertised summary block - gaps where no real, more-specific path actually exists - is not blindly forwarded toward whatever next hop happens to belong to one of the unrelated contributing routes. A reject next hop causes the router to drop the packet and generate and return an ICMP destination-unreachable message to the originating source, explicitly informing it that no path exists, which is functionally and behaviorally distinct from a silent discard next hop that would drop the packet without any such notification. Aggregate routes never adopt or forward through any single contributing route's next hop, which rules out the two forwarding-based answer choices entirely. Reference topics: Junos Enterprise Routing - Protocol Independent Routing, Default Reject Next Hop for Aggregate Routes.

質問 # 204
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