Free PDF JN0-364 - Service Provider Routing and Switching, Specialist (JNCIS-SP)–The Best Exam Guide Materials

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Juniper JN0-364 Exam Syllabus Topics:

SectionObjectives
Topic 1: IPv6- Identify the concepts, operation, or functionality of IPv6
  • 1. Dynamic routing - OSPFv3, IS-IS, BGP
  • 2. IPv6 over IPv4 tunneling
  • 3. Static routes
- Demonstrate knowledge of how to configure, monitor, or troubleshoot IPv6
Topic 2: Protocol-Independent Routing- Identify the concepts, operation, or functionality of various protocol-independent routing components
  • 1. Martian addresses
  • 2. Load balancing
  • 3. Filter-based forwarding
  • 4. Routing instances, including routing information base (RIB) (also known as routing table) group
  • 5. Static, aggregate, and generated routes
- Demonstrate knowledge of how to configure, monitor, or troubleshoot various protocol-independent routing components
  • 1. Load balancing
  • 2. Filter-based forwarding
  • 3. Static, aggregate, and generated routes
Topic 3: Spanning Tree Protocols- Demonstrate knowledge of how to configure, monitor, or troubleshoot Spanning Tree Protocols
  • 1. RSTP
  • 2. VSTP
  • 3. STP
  • 4. MSTP
- Identify the concepts, operation, or functionality of STP
  • 1. RSTP
  • 2. VSTP
  • 3. STP
  • 4. MSTP
Topic 4: Layer 2 Bridging or VLANs- Demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 bridging or VLANs
  • 1. Provider bridging
  • 2. VLANs
  • 3. IRB
  • 4. Interfaces and ports
- Identify the concepts, operation, or functionality of Layer 2 bridging for the Junos OS
  • 1. Virtual Switches
  • 2. Bridging elements and terminology
  • 3. Service provider switching platforms
  • 4. Provider bridging (Q-in-Q tunneling)
  • 5. Frame processing
- Identify the concepts, benefits, or functionality of VLANs
  • 1. Port modes
  • 2. Integrated Routing and Bridging (IRB)
  • 3. Tagging
Topic 5: Multiprotocol Label Switching (MPLS)- Identify the concepts, operation, or functionality of MPLS CoS processing on Junos devices
  • 1. RSVP
  • 2. Segment routing with MPLS
  • 3. End-to-end packet flow and forwarding
  • 4. MPLS and routing tables
  • 5. Labels and the label information base
  • 6. MPLS packet header
  • 7. MPLS terminology
  • 8. LDP
- Demonstrate knowledge of how to configure, monitor, or troubleshoot MPLS
  • 1. LDP-signaled Label-Switched Paths (LSPs)
  • 2. MPLS forwarding
  • 3. Shortest path segment-routing LSPs
  • 4. RSVP-signaled Label-Switched Paths (LSPs)
Topic 6: Intermediate System to Intermediate System (IS-IS)- Demonstrate knowledge of how to configure, monitor, or troubleshoot IS-IS
  • 1. Troubleshooting tools
  • 2. Interfaces and adjacencies
  • 3. Routing policy application
- Identify the concepts, operation, or functionality of IS-IS
  • 1. IS-IS protocol data units (PDUs)
  • 2. Link-state database
  • 3. Adjacencies and neighbors
  • 4. Levels and areas
  • 5. Type, length, values (TLVs)
  • 6. Designated intermediate system (DIS)
  • 7. Metrics
Topic 7: Border Gateway Protocol (BGP)- Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
  • 1. Troubleshooting tools
  • 2. Peers and peer groups
  • 3. Routing policy application
- Identify the concepts, operation, or functionality of BGP
  • 1. Attributes
  • 2. BGP route reflection and confederations
  • 3. IBGP and EBGP functionality and interaction
  • 4. BGP message types
  • 5. Route selection process
  • 6. BGP basic operation
Topic 8: Open Shortest Path First (OSPF)- Demonstrate knowledge of how to configure, monitor, or troubleshoot OSPF
  • 1. Interfaces and neighbor
  • 2. Troubleshooting tools
  • 3. Routing policy application
- Identify the concepts, operation, or functionality of OSPF
  • 1. Designated router and backup designated router
  • 2. OSPF packet types
  • 3. Link-state database
  • 4. OSPF area and router types
  • 5. Adjacencies and neighbors
  • 6. Router ID
  • 7. Link-state advertisement (LSA) packet type

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Juniper Service Provider Routing and Switching, Specialist (JNCIS-SP) Sample Questions (Q115-Q120):

NEW QUESTION # 115
What is a key differentiator of generate routes from aggregate routes?

Answer: A

Explanation:
Generated routes are a type of route that can be created to summarize and generate more specific routes within the routing table. Unlike aggregate routes, which summarize existing routes and inherit a next-hop, generated routes do not necessarily have to match an existing route and will have a next- hop of reject by default unless specified otherwise.


NEW QUESTION # 116
By default, which routing table contains a list of all ingress LSPs?

Answer: C

Explanation:
Ingress LSPs originate on the router and are installed as routes in the main IPv4 unicast routing table. This table contains the destination prefixes and next-hop information used for normal IP forwarding. When an LSP is configured as the forwarding path, the route in this table points to the LSP as the next hop, making it the table that lists ingress LSP routes by default.


NEW QUESTION # 117
Click the Exhibit button. You have configured IPv4 and IPv6 in your network and all OSPF neighbors are established. You apply the configuration shown in the exhibit.
Which statement is true in this scenario?

Answer: C

Explanation:
The network is being advertised into OSPFv2 because the LAN-facing interface is enabled under OSPF. It is also being advertised into OSPFv3 for IPv4 because OSPFv3 is configured with the ipv4-unicast realm on the same interface. As a result, R1 learns 172.16.2.0/24 through both protocol instances and will have both protocol entries for that prefix.


NEW QUESTION # 118

Referring to the exhibit, which protocol would automatically create a full mesh of label-switched paths between MPLS-enabled routers?

Answer: B

Explanation:
In Juniper Networks Junos OS, theLabel Distribution Protocol (LDP)is specifically designed to automate the creation of Label Switched Paths (LSPs) based on the information provided by the underlying Interior Gateway Protocol (IGP), such as OSPF or IS-IS. When LDP is enabled on a set of interfaces within an OSPF area (as shown in the exhibit with Area 0.0.0.0), it automatically discovers neighbors and exchanges label mappings for all known unicast routes in the routing table.
The defining characteristic of LDP in this context is its "topology-driven" nature. Unlike RSVP (Resource Reservation Protocol), which typically requires the manual configuration of each LSP ingress point and destination, LDP follows the IGP's shortest path tree to automatically build afull meshof LSPs between all participating routers. This means that every Provider Edge (PE) and Provider (P) router in the exhibit-PE1, PE2, PE3, P1, P2, and P3-will establish label-switched connectivity to every other router without the administrator having to define individual tunnels.
LDP accomplishes this through a downstream-unsolicited label distribution mode by default in Junos. Each router assigns a local label for its loopback address and other prefixes and advertises these to its neighbors.
Because every router is performing this action for every reachable prefix in the OSPF domain, a complete fabric of label-switched paths is formed. While RSVP is more robust for traffic engineering and bandwidth reservation, LDP is the preferred protocol for creating a simple, scalable full mesh of LSPs for applications like Layer 3 VPNs or internal BGP tunneling where complex path manipulation is not required. BFD is a failure detection protocol, and BGP is used for service signaling, making LDP the only correct choice for automatic mesh creation.


NEW QUESTION # 119
How are routing loops prevented in internal BGP networks?

Answer: D

Explanation:
The prevention of routing loops within an Autonomous System (AS) is handled differently than loop prevention between ASes. While External BGP (EBGP) uses the AS_PATH attribute to detect loops,Internal BGP (IBGP)does not modify the AS_PATH. Therefore, a different mechanism is required to ensure that a route does not circulate infinitely inside the network.
This mechanism is known as theIBGP Split Horizon rule. According to Juniper Networks documentation and the BGP standard (RFC 4271), a BGP speakermust not advertise a route learned via an IBGP peer to any other IBGP peer. In simpler terms, "what is learned internally, stays local." This rule ensures that a route only travels one "hop" inside the AS-from the router that learned it from an external source to all other internal routers.
Because of this rule, IBGP routers do not naturally propagate routes through each other. This creates a requirement for afull meshof IBGP sessions, where every BGP-speaking router in the AS must have a direct peering session with every other BGP-speaking router. To mitigate the scaling issues of a full mesh in large service provider networks, architects useRoute ReflectorsorConfederations, which are authorized exceptions to the Split Horizon rule.
Option B is incorrect because EBGP peersdoadvertise EBGP routes to other EBGP peers (this is how the internet works). Option C is incorrect because EBGP-learned routesmustbe sent to IBGP peers so the internal network knows how to reach the outside world. Option D is incorrect because internal routesmustbe sent to external peers to advertise your network to the internet.


NEW QUESTION # 120
......

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