此外，這些VCESoft JN0-351考試題庫的部分內容現在是免費的：https://drive.google.com/open?id=1T6QpFRTMFETbZjCrvnc9N7K5O3GTZjyQ
VCESoft 考題大師的擬真試題覆蓋了真實的考試真題，已經成為考生通過 Juniper JN0-351 考试的首選學習資料。JN0-351 考試主要用於具有較高水準的實施顧問能力，獲取證書，以確保考生有一個堅實的專業基礎知識，有利於他們將此能力企業專業化。準備 Juniper 的 JN0-351 考試的考生，需要熟練了解我們的擬真試題，快速完成測試，就能順利通過考試。
| Certification Vendor: | Juniper Networks |
|---|---|
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) |
| Exam Number: | JN0-351 |
| Passing Score: | ~60-70% |
| Related Certifications: | JNCIP-ENT JNCIE-ENT JNCIA-Junos |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Exam Price: | USD varies by region (typically around $200–$300 USD) |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple choice, Single-answer multiple choice, Multiple-answer multiple choice |
| Real Exam Qty: | 65 |
| Recommended Training: | Juniper Enterprise Routing & Switching Training Juniper Learning Portal |
| Exam Registration: | Pearson VUE Juniper Exams Juniper Certification Registration |
| Sample Questions: | Juniper JN0-351 Sample Questions |
| Exam Way: | Pearson VUE proctored exam (online or test center) |
| Pre Condition: | JNCIA-Junos (JN0-105) recommended as prerequisite knowledge |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/certification-tracks/enterprise-routing-switching/jncis-ent.html |
VCESoft的關於Juniper JN0-351 認證考試的針對性練習題卻是很受歡迎的。VCESoft的資料不僅能讓你獲取知識和很多相關經驗，還可以使你為考試做充分的準備。雖然Juniper JN0-351認證考試很難，但是通過做VCESoft的練習題後，你會很有信心的參加考試。放心地選擇VCESoft的高效練習題吧，為Juniper JN0-351 認證考試做一個最充分的準備。
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問題 #110
Which statement about configuring persistent MAC learning is correct?
答案：B
問題 #111
You are receiving multiple BGP routes from an upstream neighbor and only want to advertise a single summarized prefix to your internal OSPF neighbors. This route should only be advertised when you are receiving these BGP routes from this neighbor.
In this scenario, which type of route should you create?
答案：B
解題說明：
Both aggregate and generated routes would work, but the best choice is generated routes.
One key difference:
With aggregated routes any prefix in the routing table counts as a contributing route.
With generated routes only prefix with a valid next-hop qualifies.
問題 #112
Which statement is correct about controlling the routes installed by a RIB group?
答案：B
解題說明：
Explanation
A RIB group is a configuration that allows a routing protocol to install routes into multiple routing tables in Junos OS. A RIB group consists of an import-rib statement,which specifies the source routing table, and an export-rib statement, which specifies the destination routing table or group. A RIB group can also include an import-policy statement, which specifies one or more policies to control which routes are imported into the destination routing table or group1.
An import policy is a policy statement that defines the criteria for accepting or rejecting routes from the source routing table. An import policy can also modify the attributes of the imported routes, such as preference, metric, or community. An import policy can be applied to a RIB group by using the import-policy statement under the [edit routing-options rib-groups] hierarchy level1.
Therefore, option A is correct, because an import policy is applied to the RIB group to control which routes are installed in the destination routing table or group. Option B is incorrect, because all routes in the source routing table are imported into the destination routing table or group, unless filtered by an import policy.
Option C is incorrect, because a firewall filter is not used to install routes in the RIB groups; a firewall filter is used to filter packets based on various criteria. Option D is incorrect, because an export policy is not applied to the RIB group; an export policy is applied to a routing protocol to control which routes are advertised to other devices.
References:
1: rib-groups | Junos OS | Juniper Networks
問題 #113
Which two statements about redundant trunk groups on EX Series switches are correct? (Choose two.)
答案：A,D
解題說明：
Redundant Trunk Groups (RTGs) on EX Series switches provide a simple solution for network recovery when a trunk port on a switch goes down 1 . They are configured on the access switch and contain two links:
a primary or active link, and a secondary link 1 . Therefore, option B is correct because if the active link fails, the secondary link automatically starts forwarding data traffic without waiting for normal spanning-tree protocol convergence 1 .
Option D is also correct. In a typical enterprise network composed of distribution and access layers, RTGs are used where one Access switch is connected to two different uplink switches 2 . This implies that RTGs must be connected to the same aggregation switch 2 .
問題 #114
Which statement is correct about IP-IP tunnels?
答案：A
解題說明：
Explanation
IP-IP tunnels are a type of tunnels that use IP as both the encapsulating and encapsulated protocol. IP-IP tunnels are simple and easy to configure, but they do not provide any security or authentication features. IP-IP tunnels only support encapsulating IP traffic, which means that the payload of the inner packet must be an IP packet. IP-IP tunnels cannot encapsulate non-IP traffic, such as Ethernet frames or MPLS labels1.
Option A is correct, because IP-IP tunnels only support encapsulating IP traffic. Option B is incorrect, because IP-IP tunnels only support encapsulating non-IP traffic. Option C is incorrect, because the TTL in the inner packet is not decremented during transit to the tunnel endpoint. The TTL in the outer packet is decremented by each router along the path, but the TTL in the inner packet is preserved until it reaches the tunnel endpoint2.
Option D is incorrect, because there are 20 bytes of overhead with IP-IP encapsulation. The overhead consists of the header of the outer packet, which has a fixed size of 20 bytes for IPv43.
References:
1: IP-IP Tunneling 2: What is tunneling? | Tunneling in networking 3: IPv4 - Header
問題 #115
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JN0-351認證資料: https://www.vcesoft.com/JN0-351-pdf.html
從Google Drive中免費下載最新的VCESoft JN0-351 PDF版考試題庫：https://drive.google.com/open?id=1T6QpFRTMFETbZjCrvnc9N7K5O3GTZjyQ