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Juniper JN0-364 Exam Syllabus Topics:

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

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JN0-364퍼펙트 덤프문제 - JN0-364완벽한 시험자료

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최신 JNCIS-SP JN0-364 무료샘플문제 (Q72-Q77):

질문 # 72
When considering BGP route propagation, which two statements are correct? (Choose two.)

정답：B,D


질문 # 73
What prevents routing loops in a single-area OSPF network?

정답：B

설명：
In OSPF, loop prevention within a single area is achieved through the fundamental nature of its link-state architecture. Unlike distance-vector protocols that rely on "routing by rumor," OSPF ensures that every router within an area maintains an identicalLink-State Database (LSDB). This database acts as a complete map of the network topology.
Once the LSDB is synchronized, each router independently executes theShortest Path First (SPF) algorithm
, which is formally known as theDijkstra algorithm. This mathematical process treats the local router as the
"root" of a tree and calculates the shortest path to every other node (router) and prefix in the area based on the cumulative interface costs. Because every router uses the same synchronized map (the LSDB) and the same deterministic algorithm, they all arrive at a consistent, loop-free view of the best paths.
According to Juniper Networks technical documentation, the Dijkstra algorithm is superior to theBellman- Ford algorithm(used by distance-vector protocols like RIP) in this regard. Bellman-Ford is susceptible to
"count-to-infinity" problems and loops because routers only know the distance and direction to a destination provided by their neighbors, rather than the full topology. In OSPF, even if a link fails, the updated Link-State Advertisement (LSA) is flooded rapidly, and the Dijkstra algorithm is re-run to find a new loop-free path.
Routing policies(Option B) are used to manipulate path selection or filter routes but are not the primary mechanism for fundamental loop prevention in OSPF. Similarly,forwarding policies(Option D) govern how traffic is handled at the data plane level rather than determining the control plane's loop-free topology.


질문 # 74
Which type of PDU is used in IS-IS to get an entire description of all link-state PDUs in the IS-IS database?

정답：B

설명：
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.


질문 # 75
Which two statements about graceful restart are correct? (Choose two.)

정답：A,C

설명：
Graceful Restart (GR)is a high-availability mechanism designed to minimize the impact of a routing protocol process (rpd) restart or a Routing Engine (RE) switchover. It allows a router to continue forwarding traffic while the control plane is recovering, provided that the data plane (Packet Forwarding Engine) remains intact.
According to Juniper Networks documentation, Graceful Restart operates in two distinct roles:
* Restarting Mode:This is the role of the router that is actually undergoing the restart. In Junos OS, this mode isnot enabled by default (Option A). An administrator must explicitly configure graceful-restart under the [edit routing-options] hierarchy to allow the router to signal its neighbors that it is attempting a graceful recovery.
* Helper Mode:This is the role of the neighboring routers. When a neighbor sees a router restart, if it is in "helper mode," it will continue to forward traffic toward the restarting router and will not flush the associated routes from its forwarding table for a specified period. In Junos,helper mode is enabled by default (Option B)for most protocols (OSPF, BGP, IS-IS). This means that even if you haven't configured GR on your own router, it will automatically assist its neighbors if they perform a graceful restart.
Why other options are incorrect:
* Option C:WhileGRES (Graceful Routing Engine Switchover)is often usedwithGraceful Restart to handle hardware-level RE failures, they are independent features. GR can function during a simple software process restart without dual REs or GRES.
* Option D:Nonstop Bridging (NSB)is a separate high-availability feature for Layer 2 protocols (like STP). While it shares a similar goal, Graceful Restart is specifically a Layer 3 protocol mechanism (Layer 2 does not use "helper" routers in the same way).


질문 # 76
Which OSPF packet type is used to initiate and maintain neighbor relationships?

정답：D

설명：
Hello packets are used by OSPF routers to discover neighbors and establish adjacency relationships. They are also sent periodically to maintain the neighbor relationship and verify that neighboring routers are still reachable.


질문 # 77
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JN0-364퍼펙트 덤프문제: https://www.itcertkr.com/JN0-364_exam.html

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