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| Section | Weight | Objectives |
|---|---|---|
| High Availability | 5-8% | - NSR and GRES concepts - Graceful restart - Nonstop active routing |
| Layer 2 Bridging and VLANs | 8-12% | - VLANs and trunking - Bridging concepts - Service provider switching features |
| IPv6 | 8-12% | - OSPFv3 and BGP for IPv6 - Address types and format - Autoconfiguration - Static and dynamic routing |
| Spanning Tree Protocols | 8-12% | - Configuration and convergence - Port roles and states - BPDU and protection features - STP, RSTP, MSTP, VSTP |
| Multiprotocol Label Switching (MPLS) | 12-18% | - Segment routing basics - Terminology and forwarding - Configuration and monitoring - LDP and RSVP - Labels and LIB |
| Open Shortest Path First (OSPF) | 15-20% | - Link-state database - Configuration and troubleshooting - LSA types and operation - Areas and router types |
| Border Gateway Protocol (BGP) | 20-25% | - IBGP and EBGP - Path selection and attributes - Configuration and troubleshooting - Basic operation and message types - Policy and route filtering |
| Tunnels | 5-8% | - Tunnel configuration and usage - GRE and IP-IP tunnels |
| Protocol-Independent Routing | 10-15% | - Martian addresses - Load balancing - Routing instances and RIB groups - Filter-based forwarding - Static, aggregate, and generated routes |
| Intermediate System to Intermediate System (IS-IS) | 10-15% | - Metrics and wide metrics - Configuration and monitoring - Adjacencies and levels - PDUs and TLVs |
Free Juniper JN0-364 Dumps to prepare for the Service Provider Routing and Switching, Specialist (JNCIS-SP) JN0-364 exam is a great way to gauge your progress in preparation. You can also check your progress with the help of evaluation reports. These reports will help you know where you stand in your preparation and boost your confidence.
NEW QUESTION # 128
Which address is used by OSPF hello packets?
Answer: B
NEW QUESTION # 129
How are routing loops prevented in external BGP networks?
Answer: D
Explanation:
BGP is apath-vector protocol, and its primary mechanism for ensuring a loop-free topology across the global internet is theAS_PATHattribute. This attribute is a "well-known mandatory" attribute that records every Autonomous System (AS) a prefix has passed through.
According to Juniper Networks Service Provider documentation, the loop prevention rule forExternal BGP (EBGP)is straightforward: when a router receives a BGP Update from an EBGP peer, it examines the AS_PATH list. If the router's ownlocal AS numberis already present in the list, it indicates that the advertisement has already traversed the local AS and has returned. To prevent a routing loop, the routerwill not use the routeand will implicitly discard the update (Option D).
This behavior is a default, hard-coded function of the BGP protocol and does not require the administrator to write manualrouting policies(Options B and C) to achieve basic loop prevention. While there are advanced features like as-path-expand or allow-as-in that can modify this behavior for specific design requirements (such as in certain Hub-and-Spoke MPLS VPN topologies), the standard operational default is to reject any route where the local AS is detected in the path. This ensures that traffic does not circulate infinitely between Autonomous Systems.
NEW QUESTION # 130
You are asked to configure interfaces on Juniper devices to support dual VLAN tags.
In this scenario, which two interface statements would accomplish this task? (Choose two.)
Answer: C,D
Explanation:
Flexible VLAN tagging enables an interface to support multiple VLAN tagging formats, including QinQ configurations that use two VLAN tags.
Stacked VLAN tagging enables the interface to process double-tagged Ethernet frames, allowing an outer service VLAN tag to be added to an inner customer VLAN tag for QinQ deployments.
NEW QUESTION # 131
Referring to the exhibit. Which two statements ate correct about the actions taken as the packet traverses the service provider MPLS network from Site 1 to Site 2 as shown in the exhibit?
(Choose two.)
Answer: A,C
Explanation:
In MPLS (Multiprotocol Label Switching) networks, routers use label switching to forward packets.
The first router at the edge of the MPLS network (R1) will perform a lookup in the mpls.0 table to determine the label to attach to the packet as it enters the MPLS network. This label informs the next routers in the MPLS network (like R2) on how to forward the packet. Internal MPLS routers, like R2, also perform lookups in their mpls.0 table to determine how to switch the packet toward its destination (label swapping). The inet.3 table is used for resolving next-hop information for labeled routes, but it's the mpls.0 table that is used for label switching decisions.
NEW QUESTION # 132
Which two statements are correct about segment routing? (Choose two.)
Answer: A,C
Explanation:
Segment routing is a source routing paradigm that allows a source router to define the path that a packet will take through the network by assigning an ordered list of segments--identifiers that specify a forwarding path for the packet through the network. Segment Routing can be implemented over an MPLS architecture or with IPv6 (SRv6).
Segment routing does not require a full mesh of adjacencies or state per transit path in the network, which is often the case with conventional MPLS signaling protocols like RSVP-TE. It leverages the existing IGP topology for forwarding without the need to maintain a state for each LSP (Label Switched Path), hence requiring very little resources to maintain.
In segment routing, labels (or segments) are distributed via IGP routing protocols like OSPF or IS-IS with extensions to carry segment routing information. These protocols are enhanced with Segment Routing extensions to distribute labels. For example, OSPFv2 is extended with Segment Routing extensions defined in RFC 8665.
NEW QUESTION # 133
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