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Juniper JN0-364 Exam Syllabus Topics:

SectionObjectives
Topic 1: MPLS and Service Provider Technologies- MPLS fundamentals
  • 1. LDP operations
    • 2. Label switching and forwarding
      - VPN services
      • 1. Layer 3 VPN concepts
        • 2. Layer 2 VPN overview
          Topic 2: BGP and Routing Policy- BGP fundamentals
          • 1. Attributes and path selection
            • 2. eBGP and iBGP operations
              - Routing policy control
              • 1. Import/export policies
                • 2. Route filtering and manipulation
                  Topic 3: OSPF and IS-IS Routing Protocols- OSPF configuration and troubleshooting
                  • 1. Areas and LSAs
                    • 2. Adjacency and neighbor states
                      - IS-IS operation in service provider networks
                      • 1. LSP and SPF calculation
                        • 2. Levels and routing hierarchy
                          Topic 4: Troubleshooting and Operations- Performance and monitoring
                          • 1. Traffic analysis basics
                            • 2. System logging and alarms
                              - Network troubleshooting methodology
                              • 1. Protocol verification tools
                                • 2. Junos operational commands
                                  Topic 5: Service Provider Architecture & Junos Fundamentals- Junos OS routing fundamentals
                                  • 1. Junos CLI and configuration hierarchy
                                    • 2. Routing table and forwarding concepts
                                      - Service provider network design basics
                                      • 1. Scalability considerations
                                        • 2. Core, edge, and access architecture

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                                          Juniper Service Provider Routing and Switching, Specialist (JNCIS-SP) Sample Questions (Q67-Q72):

                                          NEW QUESTION # 67
                                          Referring to the exhibit, what is the minimum number of LSPs required to support all four networks?

                                          Answer: B

                                          Explanation:
                                          Given the RSVP Signaled Service Provider MPLS Core network shown in the exhibit, only a single Label Switched Path (LSP) is required to support all four networks because MPLS can use label stacking to multiplex multiple LSPs over a single physical path. Therefore, one LSP can be established through the MPLS core, and all networks can use this LSP with different label stacks.


                                          NEW QUESTION # 68
                                          For two or more switches to participate in the same MSTP region, which parameter must match?

                                          Answer: C

                                          Explanation:
                                          For switches to participate in the same MSTP region, the MST region configuration must match across the devices. One of the required matching parameters is the region name, which identifies the MSTP region and ensures the switches treat each other as part of the same spanning-tree region.


                                          NEW QUESTION # 69
                                          Exhibit:
                                          user@Router-1> show route 172.24/16
                                          inet.0: 9 destinations, 9 routes (9 active, 0 holddown, 0 hidden)
                                          + = Active Route, - = Last Active, * = Both
                                          ...
                                          172.24.0.0/24 *[OSPF/150] 01:31:31, metric 0, tag 0
                                          > to 172.20.0.2 via ge-0/0/2.0
                                          to 172.20.1.2 via ge-0/0/3.0
                                          user@Router-1> show route forwarding-table
                                          Routing table: default.inet
                                          Internet:
                                          Destination Type RtRef Next hop Type Index NhRef Netif
                                          ...
                                          172.24.0.0/24 user 0
                                          172.20.0.2 ucst 551 2 ge-0/0/2.0
                                          172.20.1.2 ucst 552 2 ge-0/0/3.0
                                          Referring to the exhibit, which two statements are true? (Choose two.)

                                          Answer: A,C

                                          Explanation:
                                          In Junos OS, understanding the distinction between theRouting Information Base (RIB)and theForwarding Information Base (FIB)is fundamental to analyzing traffic patterns and load-balancing behavior. The RIB (show route) contains all prefixes learned via various protocols, while the FIB (show route forwarding-table) contains only the active next-hops that are actually programmed into the Packet Forwarding Engine (PFE).
                                          According to Juniper Networks technical documentation, the default behavior for Junos OS when encounteringEqual-Cost Multipath (ECMP)routes is to select only a single next-hop from the available candidates in the RIB and install that single path into the FIB. In a default state, even if the show route output displays multiple next-hops for a destination like 172.24.0.0/24, only one would have the active route symbol (
                                          >) and only that one would appear in the forwarding table.
                                          In the provided exhibit, the show route output shows two next-hops for 172.24.0.0/24, but only the first one (172.20.0.2) is marked with the>symbol as the active selection. However, the subsequent show route forwarding-table output reveals thatboth next-hops(172.20.0.2 and 172.20.1.2) are currently present in the forwarding table for that same destination. This discrepancy indicates that thedefault load-balancing behavior has been modified (Option B). This modification is typically achieved by creating a routing policy with the action then load-balance per-packet (which actually results in flow-based load balancing) and applying it to the forwarding table via the export statement under [edit routing-options forwarding-table].
                                          Because the forwarding table now contains both next-hops, the router is no longer restricted to a single path.
                                          Therefore, therouter will choose both next-hops in the routing table (Option D)for packet forwarding, distributing flows across the two available Gigabit Ethernet interfaces (ge-0/0/2.0 and ge-0/0/3.0). This ensures higher utilized bandwidth and provides redundancy at the data plane level.


                                          NEW QUESTION # 70
                                          Click the Exhibit button.

                                          Referring to the exhibit, which two statements are correct? (Choose two.)

                                          Answer: A,C

                                          Explanation:
                                          All listed ports are in the designated role and forwarding state, and the designated bridge ID shown matches the local bridge ID, which indicates the device is acting as the root bridge for this spanning-tree instance.
                                          The bridge ID begins with 32768, which corresponds to the default bridge priority of 32,768 (32k).


                                          NEW QUESTION # 71
                                          Which type of PDU is used in IS-IS to get an entire description of all link-state PDUs in the IS-IS database?

                                          Answer: B

                                          Explanation:
                                          A Complete Sequence Number PDU (CSNP) is used to advertise a summary of all LSPs in the IS-IS link-state database. It contains the identifiers and sequence numbers for each LSP, allowing routers to compare databases and determine if any LSPs are missing or outdated.


                                          NEW QUESTION # 72
                                          ......

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