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We recognize that preparing for the Juniper Certification Exams can be challenging, and that's why we provide Juniper JN0-364 practice material with three formats that take your individual needs into account. Our team of experts is dedicated to helping you succeed by providing you with the support you need while using the product.
| Section | Objectives |
|---|---|
| MPLS and Service Provider Technologies | - VPN services
|
| BGP and Routing Policy | - BGP fundamentals
|
| Service Provider Architecture & Junos Fundamentals | - Service provider network design basics
|
| Troubleshooting and Operations | - Network troubleshooting methodology
|
| OSPF and IS-IS Routing Protocols | - OSPF configuration and troubleshooting
|
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NEW QUESTION # 10
A service provider receives multiple BGP routes to the same destination prefix. Each route has a different AS path length, but all other attributes are equal.
In this scenario, which statement is correct?
Answer: A
Explanation:
When multiple BGP routes to the same destination have identical attributes except for the AS path length, the BGP best-path selection process prefers the route with the shortest AS path. A shorter AS path indicates a potentially more direct path to the destination and is therefore chosen as the active route.
NEW QUESTION # 11
When would you use the qualified-next-hop statement with a static route?
Answer: B
Explanation:
Qualified next hops allow you to associate one or more properties with a particular next-hop address. You can set an overall preference for a particular static route and then specify a different preference for the qualified next hop. For example, suppose two next-hop addresses (10.10.10.10 and 10.10.10.7) are associated with the static route 192.168.47.5/32. A general preference is assigned to the entire static route, and then a different preference is assigned to only the qualified next-hop address 10.10.10.7. For example:
The qualified-next-hop statement with a static route is used to specify multiple next hops for a static route with different preferences (priorities). This allows for more granular control over the path selection process in the event that the primary next hop becomes unreachable.
NEW QUESTION # 12
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?
Answer: A
Explanation:
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.
NEW QUESTION # 13
Which new field is added to an IPv6 header as compared to IPv4?
Answer: A
Explanation:
The IPv6 header includes a new field that is not found in the IPv4 header, called the flow label.
The flow label in IPv6 is used to identify packets that require special handling by routers for quality of service (QoS) or other reasons, allowing these packets to be handled efficiently as they move through the network.
NEW QUESTION # 14
Exhibit:
You must configure the router called ROUTER_1 to take all valid prefixes learned from internal BGP peers in AS 64523, and then re-advertise them to other internal BGP peers in the same autonomous system.
Referring to the exhibit, which configuration must you deploy on ROUTER_1 to accomplish this task?
Answer: C
Explanation:
In theBorder Gateway Protocol (BGP), theSplit Horizonrule is a fundamental loop-prevention mechanism for internal sessions. This rule dictates that a BGP speaker must not advertise a route learned from anInternal BGP (IBGP)peer to any other IBGP peer within the same Autonomous System (AS). This ensures that routes do not circulate infinitely inside a network, as IBGP does not modify the AS_PATH attribute. Consequently, to maintain full reachability, a network normally requires a "full mesh" of IBGP sessions, where every BGP- speaking router is directly peered with every other router.
In the provided exhibit,ROUTER_1is part of AS 64523. The requirement is for ROUTER_1 to take prefixes learned from its internal peers and re-advertise them to other internal peers in the same AS. This behavior is a direct violation of the standard Split Horizon rule. According to Juniper Networks technical documentation, the standard solution to scale IBGP without a full mesh is to configureRoute Reflection.
When a router is configured as aRoute Reflector (RR), it is permitted to "reflect" (re-advertise) routes learned from one IBGP peer to another. In Junos OS, the mechanism to enable Route Reflection is to configure acluster IDwithin the BGP group. By adding the cluster keyword followed by a unique 32-bit identifier (usually the router's loopback address) to the internal BGP group configuration, the router assumes the role of an RR. It then follows specific reflection rules:
* Routes learned from anEBGP peerare reflected to all IBGP peers.
* Routes learned from aRoute Reflector Clientare reflected to all other clients and non-clients.
* Routes learned from anon-clientare reflected to all clients.
Option A is incorrect because BGP advertisement rules are hard-coded; a standard export policy cannot override the Split Horizon rule. Option C handles traffic engineering tags but does not enable route reflection.
Option D would change the session to EBGP, which does not address the internal reachability requirement within AS 64523. Therefore, configuring the cluster ID is the only valid way to achieve the desired re- advertisement behavior.
NEW QUESTION # 15
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