ちなみに、It-Passports JN0-664の一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=1Y9mjW9sDeU-0bHbOF_v7ZbSDSPh7v2tj
長い間JN0-664認定を希望しているかもしれませんが、Juniper勉強する時間や良い方法がありません。勉強はつまらないと思っていたのかもしれません。 JN0-664の学習教材があなたの心を変えます。当社の製品を使用すると、すぐに勉強の幸せを感じるでしょう。熱心なIt-Passports専門家のおかげで、JN0-664試験に合格するためのすばらしい学習ツールが考案されました。最初にデモを試してみると、勉強をやめられないことがわかります。 JN0-664学習教材を使用すると、自分自身に挑戦して、もっと知りたいと思うでしょう。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IP Multicast | 10-15% | - IGMPv2/v3, PIM dense mode, sparse mode, and SSM - Multicast integration with IGP and BGP - RPF check, multicast distribution trees, and troubleshooting |
| Topic 2: BGP | 20-25% | - Inter-AS routing and advanced BGP features - Policy-based routing, filtering, and route manipulation - Attributes, communities, and multipath routing - iBGP, eBGP, route reflection, and confederations |
| Topic 3: Class of Service (CoS) | 10-15% | - Traffic classification, marking, and policing - CoS configuration and monitoring in service provider networks - Queue scheduling, shaping, and congestion management |
| Topic 4: IS-IS | 15-20% | - DIS operation and routing policy implementation - IS-IS levels, areas, and operation - Metrics, route summarization, and route leaking - Configuration and monitoring for single/multi-area |
| Topic 5: VPNs and MPLS | 20-25% | - MPLS architecture, LDP, RSVP-TE, and label switching - VPN configuration, monitoring, and troubleshooting - Layer 3 VPNs: VRF, MP-BGP, route distinguishers, targets - Layer 2 VPNs, LDP circuits, VPLS, and EVPN |
| Topic 6: OSPF | 15-20% | - OSPFv2 and OSPFv3 concepts and operation - Virtual links, authentication, and routing policy - LSA types, flooding, and route summarization - Single-area and multi-area configuration and monitoring |
一般的には、あなたは多くの時間と精力を利用してJN0-664試験を準備する必要があります。悩んでいるなら、弊社のJN0-664資料を利用して、あなたは試験に関する情報を了解することができます。我々の問題集の的中率は高いですから、It-Passportsの資料を利用して試験を準備して、あなたの学習効率を高めることができます。
質問 # 22
Exhibit
You are examining an L3VPN route that includes the information shown in the exhibit Which statement is correct in this scenario?
正解：D
解説：
Type 1: When Type value is 1, the Administrator field is 4-bytes and Assigned Number field is 2-bytes. The Administrator field should be set to the IP address (public IP addresses should be used). The Assigned Number field contains a number from a numbering space that is administered by the enterprise to which the IP address has been assigned by the appropriate authority.
質問 # 23
What is the correct order of packet flow through configurable components in the Junos OS CoS features?
正解：D
解説：
https://www.juniper.net/documentation/us/en/software/junos/cos/topics/concept/packet-flow-cos- process-cos-config-guide.html
質問 # 24
Exhibit
You are attempting to summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500. You implement the export policy shown in the exhibit and all routes from the routing table stop being advertised.
In this scenario, which two steps would you take to summarize the route in BGP? (Choose two.)
正解：B、C
解説：
Explanation
To summarize routes from the 203.0.113.128/25 IP block on R8 to AS 64500, you need to do the following:
* Add the set routing-options static route 203.0.113.128/25 discard command. This creates a static route for the summary prefix and discards any traffic destined to it. This is necessary because BGP can only advertise routes that are present in the routing table.
* Replace exact in the export policy with orlonger. This allows R8 to match and advertise any route that is equal or more specific than the summary prefix. The exact term only matches routes that are exactly equal to the summary prefix, which is not present in the routing table.
質問 # 25
Exhibit
Based on the configuration contents shown in the exhibit, which statement is true?
正解：D
解説：
This configuration applies to IGMP (Internet Group Management Protocol) and is designed to control multicast group memberships on the interface ge-0/0/0.0.
Breaking Down the Configuration
1## Policy-Statement: block-igmp
policy-statement block-igmp {
term 1 {
from {
route-filter 224.7.7.7/32 exact;
source-address-filter 192.168.100.10/32 exact;
}
then reject;
}
}
* This policy blocks IGMP joins for group 224.7.7.7 only if the source IP is 192.168.100.10.
* If both conditions match, the request is rejected.
2## IGMP Configuration on Interface ge-0/0/0.0
[edit protocols igmp]
user@router# show
interface ge-0/0/0.0 {
group-policy block-igmp;
group-limit 25;
}
* group-policy block-igmp applies the policy statement block-igmp, meaning IGMP join requests are evaluated based on this policy.
* group-limit 25 means the interface allows up to 25 multicast groups.
Evaluating the Answer Choices
# A. Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10.
* Correct, because:
* The policy specifically matches group 224.7.7.7 and source IP 192.168.100.10.
* If both conditions are met, the join is rejected.
# B. Joins for any group are accepted if the group count value is less than 25.
* Incorrect, because:
* The group-limit (25) applies to the total number of IGMP groups but does not override explicit policy rules.
* Even if there are fewer than 25 groups, a join request can still be rejected by the policy statement.
# C. Joins for group 224.7.7.7 are always rejected, regardless of the group count.
* Incorrect, because:
* The policy only blocks joins from the specific source 192.168.100.10.
* Joins from other sources to 224.7.7.7 are allowed.
# D. Joins for group 224.7.7.7 are accepted if the group count is less than 25.
* Incorrect, because:
* Joins for 224.7.7.7 from source 192.168.100.10 will always be rejected, even if the group count is below 25.
* The group-limit does not override the rejection policy.
"Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10."
# Official Juniper Documentation Reference:
# Junos IGMP Policy Configuration Guide
"A group-policy statement allows filtering IGMP joins based on multicast group address and source IP."
質問 # 26
Exhibit
You must ensure that the VPN backbone is preferred over the back door intra-area link as long as the VPN is available. Referring to the exhibit, which action will accomplish this task?
正解：A
解説：
A sham link is a logical link between two PE routers that belong to the same OSPF area but are connected through an L3VPN. A sham link makes the PE routers appear as if they are directly connected, and prevents OSPF from preferring an intra-area back door link over the VPN backbone. To create a sham link, you need to configure the local and remote addresses of the PE routers under the [edit protocols ospf area area-id] hierarchy level1.
https://www.juniper.net/documentation/us/en/software/junos/ospf/topics/topic-map/configuring-ospfv2-sham-links.html
質問 # 27
......
主要な環境では、人々はより多くの仕事のプレッシャーに直面しています。そのため、彼らはJuniper認証を一般の群れよりも高めたいと考えています。有効で効率的なJN0-664ガイドトレントを選択する方法は、ほとんどの候補者が懸念する可能性のある重要なトピックです。だから今、それは正しいです、あなたは私たちのところに来ます。当社は、特にJuniper認定試験に関するこの分野の高品質なJN0-664試験問題で有名です。試験のためにJN0-664学習教材を実践している数千人の受験者に受け入れられています。
JN0-664試験解答: https://www.it-passports.com/JN0-664.html
P.S. It-PassportsがGoogle Driveで共有している無料かつ新しいJN0-664ダンプ：https://drive.google.com/open?id=1Y9mjW9sDeU-0bHbOF_v7ZbSDSPh7v2tj