2026 VCESoft最新的JN0-351 PDF版考試題庫和JN0-351考試問題和答案免費分享：https://drive.google.com/open?id=18w6fveaX1v0LiPC7ijONs4ZKfvCiIZ7A
在如今這個人才濟濟的社會，穩固自己的職位是最好的生存方法。VCESoft提供的考試練習題的答案是非常準確的，我們是可以100%幫你通過JN0-351考試。但是穩固自己的職位並不是那麼容易的。當別人在不斷努力讓提高職業水準時，如果你還在原地踏步、安於現狀，那麼你就會被淘汰掉。要想穩固自己的職位，需要不斷提升自己的職業能力，跟上別人的步伐，你才能使自己不太落後於別人。
| Section | Objectives |
|---|---|
| Layer 2 Security | - Switch security features
|
| Layer 2 Switching | - Spanning Tree Protocol (STP/RSTP)
|
| High Availability | - Junos HA features
|
| Tunneling Technologies | - IP tunneling
|
| Layer 3 Routing Fundamentals | - Routing protocols
|
既然通過Juniper JN0-351 認證考試是不容易的，那麼選擇好的培訓工具就是成功的保證。VCESoft會第一時間為你提供考試資料及考試練習題和答案，讓你為Juniper JN0-351 認證考試做好充分的準備，以確保能100%通過Juniper JN0-351 認證考試。VCESoft不僅能讓你首次參加Juniper JN0-351 認證考試就成功通過，還能幫你節約寶貴的時間。
問題 #57
Which two statements correctly describe RSTP port roles? (Choose two.)
答案：A,C
解題說明：
In Rapid Spanning Tree Protocol (RSTP), there are several port roles that determine the behavior of the port in the spanning tree 1 .
Option A suggests that the designated port forwards data to the downstream network segment or device. This is correct because the designated port is the port on a network segment that has the best path to the root bridge
1 . It's responsible for forwarding frames towards the root bridge and sending configuration messages into its segment 1 .
Option D suggests that the root port is responsible for forwarding data to the root bridge. This is also correct because the root port is always the link directly connected to the root bridge, or the shortest path to the root bridge 1 . It's used to forward traffic towards the root bridge 1 .
Therefore, options A and D are correct.
問題 #58
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：C
解題說明：
Both aggregate and generated routes would work, but the best choice is generated routes.
問題 #59
You have two OSPF routers forming an adjacency. R1 has a priority of 32 and a router ID of 192.168.1.2. R2 has a priority of 64 and a router ID of 192.168.1.1. The routers were started at the same time and all other OSPF settings are the default settings.
Which statement is correct in this scenario?
答案：B
解題說明：
Explanation
In OSPF, the Designated Router (DR) and Backup Designated Router (BDR) are elected based on the priority of the routers1. The router with the highest priority becomes the DR, and the router with the second highest priority becomes the BDR1. If there is a tie in priority, then the router with the highest Router ID is chosen1.
In this scenario, R2 has a higher priority (64) than R1 (32), so R2 will become the DR1. Since R1 has the second highest priority, it will become the BDR1. Therefore, option D is correct.
問題 #60
You are a network operator who wants to add a second ISP connection and remove the default route to the existing ISP You decide to deploy the BGP protocol in the network.
What two statements are correct in this scenario? (Choose two.)
答案：A,C
解題說明：
BGP is a routing protocol that operates between autonomous systems (AS). An AS is a group of routers under a single administrative control. BGP can be classified into two types: internal BGP (IBGP) and external BGP (EBGP). IBGP is the BGP communication between routers within the same AS, while EBGP is the BGP communication between routers in different AS. BGP uses the AS_PATH attribute to record the AS numbers that the route has passed through, and uses it to prevent routing loops and select the best path.
In this scenario, you want to add a second ISP connection and remove the default route to the existing ISP.
This means that you want to have more control over the routing decisions and use BGP to exchange routes with both ISPs. To do this, you need to deploy the BGP protocol in your network and configure both IBGP and EBGP sessions. The correct statements about BGP in this scenario are:
* IBGP peers advertise routes received from EBGP peers to other IBGP peers. This is the default behavior of IBGP, as it allows the routers within the same AS to learn the routes from different EBGP peers and select the best exit point. However, IBGP has a rule that it does not advertise routes received from IBGP peers to other IBGP peers, to avoid creating routing loops. Therefore, option B is correct and option C is incorrect. To overcome this rule, IBGP requires a full mesh topology, where every IBGP router is directly connected to every other IBGP router, or a route reflector or confederation design, where some IBGP routers act as intermediaries to reflect or aggregate the routes to other IBGP routers.
* EBGP peers advertise routes received from IBGP peers to other EBGP peers. This is the default behavior of EBGP, as it allows the routers in different AS to exchange routes and reachability information. However, EBGP has a rule that it does not advertise routes received from EBGP peers to other EBGP peers, to avoid creating routing loops. Therefore, option D is correct and option A is incorrect. To overcome this rule, EBGP uses the AS_PATH attribute to filter out the routes that contain its own AS number, or uses route maps or policies to control the route advertisement. IBGP does not update the next-hop attribute to ensure reachability within an AS, as the next-hop attribute is preserved by IBGP. Instead, IBGP relies on an underlying IGP (Interior Gateway Protocol) to provide reachability to the next-hop.
References: Enterprise Routing and Switching, Specialist (JNCIS-ENT) - Juniper Networks , BGP Fundamentals > BGP Overview | Cisco Press , BGP Essentials: The Protocol - Pluralsight
問題 #61
Exhibit.
You are using OSPF to advertise the subnets that are used by the Denver and Dallas offices. The routers that are directly connected to the Dallas and Denver subnets are not advertising the connected subnets.
Referring to the exhibit, which two statements are correct? (Choose two.)
答案：A,B
解題說明：
Explanation
The routers that are directly connected to the Dallas and Denver subnets are not advertising the connected subnets. This can be resolved by redistributing the connected subnets into OSPF1.
Option C suggests to configure and apply a routing policy that redistributes the connected Dallas and Denver subnets. This is correct because redistribution allows routes from one routing protocol to be communicated to another, and in this case, it allows the connected subnets to be advertised through OSPF1.
Option D suggests enabling the passive option on the OSPF interfaces that are connected to the Dallas and Denver subnets. This is also correct because in OSPF, a passive interface is an interface that belongs to the OSPF router, but does not send OSPF Hello packets1. It's typically used on an interface that you don't want to use for OSPF adjacencies, but you still want to advertise its IP address1. Therefore, enabling passive interface can help in advertising the Dallas and Denver subnets.
問題 #62
......
VCESoft網站在通過JN0-351資格認證考試的考生中有著良好的口碑。這是大家都能看得到的事實。VCESoft以它強大的考古題得到人們的認可，只要你選擇它作為你的考前復習工具，就會在JN0-351資格考試中有非常滿意的收穫，這也是大家有目共睹的。現在馬上去網站下載免費試用版本，你就會相信自己的選擇不會錯。
新版JN0-351題庫: https://www.vcesoft.com/JN0-351-pdf.html
BONUS!!! 免費下載VCESoft JN0-351考試題庫的完整版：https://drive.google.com/open?id=18w6fveaX1v0LiPC7ijONs4ZKfvCiIZ7A