BONUS！！！ Jpexam JN0-364ダンプの一部を無料でダウンロード：https://drive.google.com/open?id=1Z-5YS5x5zAOds8BbHueH5WN2bGaGiwt1
時には、進める小さなステップは人生の中での大きなステップとするかもしれません。JuniperのJN0-364試験は小さな試験だけでなく、あなたの職業生涯に重要な影響を及ぼすことができます。これはあなたの能力を認めます。JuniperのJN0-364試験のほかの認証試験も大切なのです。それに、これらの資料は我々Jpexamのウェブサイトで見つけることができます。
| Section | Objectives |
|---|---|
| Topic 1: Service Provider Architecture & Junos Fundamentals | - Service provider network design basics
|
| Topic 2: BGP and Routing Policy | - Routing policy control
|
| Topic 3: Troubleshooting and Operations | - Performance and monitoring
|
| Topic 4: MPLS and Service Provider Technologies | - MPLS fundamentals
|
| Topic 5: OSPF and IS-IS Routing Protocols | - OSPF configuration and troubleshooting
|
いまJuniperのJN0-364認定試験に関連する優れた資料を探すのに苦悩しているのですか。もうこれ以上悩む必要がないですよ。ここにはあなたが最も欲しいものがありますから。受験生の皆さんの要望に答えるように、JpexamはJN0-364認定試験を受験する人々のために特に効率のあがる勉強法を開発しました。受験生の皆さんはほとんど仕事しながら試験の準備をしているのですから、大変でしょう。試験に準備するときにはあまり多くの時間を無駄にすることを避けるように、Jpexamは短時間の勉強をするだけで試験に合格することができるJN0-364問題集が用意されています。この問題集には実際の試験に出る可能性のあるすべての問題が含まれています。従って、この問題集を真面目に学ぶ限り、JN0-364認定試験に合格するのは難しいことではありません。
質問 # 77
BGP update messages contain which two elements? (Choose two.)
正解：B、D
質問 # 78
Exhibit:
Referring to the exhibit, R1 and R2 are configured to run IS-IS. The IS-IS adjacency between R1 and R2 is up. What does the output of the show isis interface command tell you about R1?
正解：B
解説：
In theIS-IS (Intermediate System to Intermediate System)protocol as implemented in Junos OS, routers can operate at two hierarchical levels:Level 1 (L1)for intra-area routing andLevel 2 (L2)for inter-area backbone routing. By default, a Juniper router and its interfaces are configured to act asLevel 1/2, meaning they will attempt to form adjacencies at both levels simultaneously.
According to Juniper Networks technical documentation, the show isis interface command provides a granular view of how the protocol is interacting with specific local links. In the provided exhibit, we must examine the L (Level)column and theDR (Designated Router)status columns to understand R1's operational state.
* Level Configuration:Under the L column for both the physical interface ge-0/0/0.0 and the loopback lo0.0, the value is strictly2. This indicates that these interfaces have been explicitly configured to operate only at Level 2.
* Adjacency Capabilities:For the interface ge-0/0/0.0, the Level 1 DR field is marked asDisabled. This confirms that R1 is not participating in Level 1 operations on this link; it will not transmit Level 1 Hello PDUs, nor will it listen for them. Consequently, R1 is incapable of forming a Level 1 adjacency with R2 on this segment.
* Metric Implications:The exhibit shows an L1/L2 Metric of100/100. In Junos, "narrow" metrics (the default) are limited to a maximum value of 63 per interface. A metric of 100 indicates thatwide metrics (wide-metrics-only) have been enabled. Therefore, option A is incorrect because the routerisusing wide metrics.
Since the prompt states the adjacency is "up," and the interface is restricted to Level 2, we can conclude that R1 only forms a Level 2 adjacency with R2 (Option B). Even though an L1 metric of 100 is displayed in the table as a configured value, it is not actually "advertised" in a Link-State PDU because the Level 1 protocol is disabled on that interface.
質問 # 79
What information is determined by using the AS path attribute included in the BGP update message? (Choose two.)
正解：B、D
解説：
TheAS_PATHattribute is a "well-known mandatory" attribute in BGP, meaning it must be present in every BGP Update message exchanged between External BGP (eBGP) peers. It records the sequence of Autonomous System numbers that a route has traversed. Per Juniper Networks Service Provider documentation, this attribute serves two fundamental purposes:
1. Loop Prevention (Option B):
This is the most critical function of the AS_PATH. When a BGP router receives an update from an eBGP peer, it scans the AS_PATH attribute for its own AS number. If the router finds its local AS number already listed in the path, it concludes that the route has already passed through its network and has "looped" back. To prevent an infinite routing loop, the router will immediately discard the update. This mechanism is the cornerstone of BGP's stability as a path-vector protocol.
2. Path Selection / Shortest Path Determination (Option C):
BGP uses a complex "tie-breaking" algorithm to select the best path among multiple candidates. One of the highest-ranking criteria in this algorithm (after Weight, Local Preference, and AS_PATH length) is the length of the AS_PATH. A shorter AS_PATH (fewer AS numbers listed) is generally preferred over a longer one, as it typically represents a more direct path through the internet hierarchy.
Why other options are incorrect:
* Option A:The "origin" of a route (IGP, EGP, or Incomplete) is determined by theORIGINattribute, which is a separate well-known mandatory attribute.
* Option D:BGP does not count individual "next-hop devices" (which would be an IGP metric like hop count in RIP); it only tracks Autonomous Systems. A single AS in the path might contain hundreds of internal routers (next-hops), but BGP only sees it as one "hop" in the AS_PATH.
質問 # 80
Exhibit:
user@R1> show route 10.16.2.0/23 exact detail
inet.0: 12 destinations, 12 routes (11 active, 0 holddown, 1 hidden)
10.16.2.0/23 (1 entry, 1 announced)
*Aggregate Preference: 130
Next hop type: Reject
Address: 0x8f3fd44
Next-hop reference count: 2
State: <Active Int Ext>
Age: 1:39:21
Task: Aggregate
Announcement bits (1): 0-KRT
AS path: I (LocalAgg)
Flags: Depth: 0 Active
AS path list:
AS path: I Refcount: 2
Contributing Routes (2):
10.16.2.0/24 proto Direct
10.16.3.0/24 proto Direct
Which destination IP address will be matched by the aggregate route shown in the exhibit?
正解：D
解説：
In the Juniper Networks Junos operating system,aggregate routesare used to represent a group of more specific routes with a single, shorter prefix. This technique is essential for reducing the size of routing tables and minimizing the volume of routing updates sent to neighbors. According to Juniper technical documentation, for a destination IP address to "match" a specific route, it must fall within the range defined by the network address and its associated CIDR mask.
The provided exhibit shows a detailed lookup for the aggregate route$10.16.2.0/23$. To determine the range of IP addresses covered by a $/23$ mask, we examine the binary representation of the third octet. A $/23$ mask means the first 23 bits are fixed. For the address $10.16.2.0$:
* The first two octets ($10.16$) are fixed.
* The third octet ($2$) is $00000010$ in binary.
* The 23rd bit is the second-to-last bit of this octet.
* The $/23$ range allows the 24th bit (the last bit of the third octet) and all 8 bits of the fourth octet to vary.
This results in a range where the third octet can be either $2$ ($00000010$) or $3$ ($00000011$). Therefore, the aggregate route $10.16.2.0/23$ covers all IP addresses from$10.16.2.0$ to $10.16.3.255$. The exhibit further confirms this by listing the "Contributing Routes": $10.16.2.0/24$ and $10.16.3.0/24$.
Analyzing the provided options against this range:
* 10.16.3.79 (Option A):This address falls squarely within the $10.16.2.0$ to $10.16.3.255$ range.
* 10.16.0.4 (Option B):This address falls in the $10.16.0.0/23$ range ($0.0$ to $1.255$).
* 10.16.4.183 (Option C):This address falls in the $10.16.4.0/23$ range ($4.0$ to $5.255$).
* 10.16.1.214 (Option D):This address also falls in the $10.16.0.0/23$ range.
Consequently,10.16.3.79is the only destination listed that matches the aggregate route shown. It is also important to note theNext hop type: Rejectin the exhibit; this means that if a packet matches the aggregate but does not match any of the more specific contributing routes, the router will drop the packet and send an ICMP unreachable message to the source.
質問 # 81
Referring to the exhibit. Which type of load balancing is shown in the exhibit?
正解：C
解説：
The policy statement shown in the exhibit has a term that specifies load-balance per-packet, which indicates that per-packet load balancing is being used. This means that the routing device will distribute packets out multiple paths on a per-packet basis, rather than on a per-flow (per- destination or per-source-destination pair) basis.
質問 # 82
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JN0-364試験に簡単に合格し、最短時間で認定資格を取得したい場合、最良の方法は、最高品質のJN0-364試験準備資料を購入することです。それが私たちのすることです。 JN0-364トレーニング資料は、この分野で高い合格率を誇ることで有名です。当社の製品を選択した場合、JN0-364試験を100％クリアできると確信しています。確実に試験に合格する方法についてまだ頭痛の種である場合、JN0-364模擬試験の質問が最良の選択です。 heしないで、私たちを選んでください！
JN0-364資格試験: https://www.jpexam.com/JN0-364_exam.html
P.S. JpexamがGoogle Driveで共有している無料かつ新しいJN0-364ダンプ：https://drive.google.com/open?id=1Z-5YS5x5zAOds8BbHueH5WN2bGaGiwt1