Juniper JN0-364 Real Exam Answers - JN0-364 Test Collection Pdf

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Juniper JN0-364 Exam Syllabus Topics:

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

>> Juniper JN0-364 Real Exam Answers <<

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Juniper Service Provider Routing and Switching, Specialist (JNCIS-SP) Sample Questions (Q36-Q41):

NEW QUESTION # 36
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: C,D

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 # 37
A BGP router receives two routes to the same prefix. One route has a higher local preference, while the other has a shorter AS path. In this scenario, which route would be selected?

Answer: D

Explanation:
TheBGP path selection algorithmis a deterministic process used by Juniper routers to select the single "best" path from the BGP table to be placed into the routing table (inet.0). This algorithm follows a specific, hierarchical set of rules. According to Juniper Networks technical documentation, the router evaluates attributes in a fixed order, and once a tie is broken at a specific step, the remaining steps are ignored.
The order of the primary BGP attributes in Junos OS is as follows:
* Highest Local Preference:This is the first attribute evaluated after the basic check for a reachable next hop. Local preference is used within an Autonomous System (AS) to prioritize one exit point over another.
* Shortest AS_PATH:If the local preference is equal, the router then evaluates the length of the AS_PATH attribute.
* Lowest Origin Code:(IGP < EGP < Incomplete).
* Lowest Multi-Exit Discriminator (MED).
In this specific scenario, the router compares a path with ahigher local preferenceagainst a path with a shorter AS path. Because theLocal Preferencecheck occurs at Step 1 and theAS_PATHcheck occurs later at Step 2, the router will select the path with the higher local preference immediately. The length of the AS path becomes irrelevant in this comparison because the tie was already broken by the local preference value.
This allows network administrators to override the default "shortest path" logic of BGP to prefer specific providers or links based on business requirements.


NEW QUESTION # 38
During MPLS forwarding, which operation describes the act of imposing a label onto an unlabeled packet?

Answer: C

Explanation:
Label push is the MPLS operation in which a label is added to an unlabeled packet as it enters the MPLS domain. The ingress label switching router assigns the label and places it on the packet so that subsequent routers can forward it based on the MPLS label instead of the IP header.


NEW QUESTION # 39
You are configuring BGP on a Juniper router to peer with an external provider. After committing the configuration, the BGP session remains in the Idle state. Which configuration issue would prevent the BGP session from progressing beyond the Idle state?

Answer: B

Explanation:
In the BGP finite state machine, theIdlestate is the "stop" or "start" point of the protocol. When a session is stuck in Idle, it means the BGP process is either administratively disabled or, more commonly, is unable to initiate the underlying TCP connection required for BGP.
According to Juniper Networks Service Provider documentation, the most common reason for a BGP session to remain in Idle is a lack ofrouting reachability. For BGP to move to theConnectstate, the Junos kernel must have a route to the IP address specified in the neighbor statement. If thepeer IP address is unreachable (Option A)-meaning there is no route in inet.0 (via OSPF, IS-IS, or static)-the router cannot initiate the TCP three-way handshake on port 179. Consequently, the state machine will never progress.
Analysis of incorrect options:
* Option B:BGP does not care if the local AS is higher or lower than the peer's; it only cares if they match the configuration. AS numbers are identifiers, not priorities.
* Option C:A mismatchedRouter IDdoes not prevent a session from leaving the Idle state. It would typically cause the session to reach theOpenConfirmstate, and then fail with a "Notification" message due to a collision or identification error.
* Option D:While a mismatchedgroup type(internal vs. external) will cause the session to fail, it usually fails during theOpenmessage exchange (OpenSent state) because the AS numbers provided will not match the expected peer type (IBGP vs. EBGP).
Only the lack of a path to the neighbor (reachability) keeps the session at the very beginning of the process:
theIdlestate.


NEW QUESTION # 40
What are three types of MPLS routers? (Choose three.)

Answer: A,D,E

Explanation:
In an MPLS network, the types of routers include ingress routers (where the MPLS labels are first applied), egress routers (where MPLS labels are removed), and transit routers (which switch MPLS- labeled packets through the MPLS network). Peering routers and aggregation routers are not specific types of MPLS routers; they are general network terms.


NEW QUESTION # 41
......

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