JN0-361 Service Provider Routing and Switching, Specialist (JNCIS-SP)

Designed for experienced networking professionals with beginner to intermediate knowledge of routing and switching implementations in Junos, this written exam verifies the candidate’s basic understanding of routing and switching technologies and related platform configuration and troubleshooting skills.

Prerequisite certification JNCIA-Junos

Exam Details
JNCIS-SP exam topics are based on the content of the recommended instructor-led training courses, as well as the additional resources.

Exam code: JN0-361
Written exam Administered at Pearson VUE testing centers worldwide
Exam length: 90 minutes
Exam type: 65 multiple-choice questions
Pass/fail status is available immediately
Junos Software Release: 17.3

Exam Objectives
This list provides a general view of the skill set required to successfully complete the specified certification exam.

Identify the concepts, operation and functionality of various protocol-independent routing components
Static, aggregate, and generated routes
Martian addresses
Routing instances, including RIB groups
Load balancing
Filter-based forwarding

Demonstrate knowledge of how to configure and monitor various protocol-independent routing components
Static, aggregate, and generated routes
Load balancing
Filter-based forwarding

Identify the concepts, operation, or functionality of OSPF
Link-state database
OSPF packet types
Router ID
Adjacencies and neighbors
Designated router (DR) and backup designated router (BDR)
OSPF area and router types
LSA packet types

Demonstrate knowledge of how to configure, monitor and troubleshoot IS-IS
Areas, interfaces and neighbors
Additional basic options
Routing policy application
Troubleshooting tools

Identify the concepts, operation and functionality of IS-IS
Link-state database
IS-IS PDUs
TLVs
Adjacencies and neighbors
Levels and areas
Designated intermediate system (DIS)
Metrics

Demonstrate knowledge of how to configure, monitor and troubleshoot IS-IS
Levels, interfaces, and adjacencies
Additional basic options
Routing policy application
Troubleshooting tools

Identify the concepts, operation and functionality of BGP
BGP basic operation
BGP message types
Attributes
Route/path selection process
IBGP and EBGP functionality and interaction

Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
Groups and peers
Additional basic options
Routing policy application

Identify the concepts, operation, or functionality of Layer 2 bridging for the Junos OS
Service Provider switching platforms
Bridging elements and terminology
Frame processing
Virtual Switches
Provider bridging (e.g., Q-in-Q tunneling)

Identify the concepts, benefits, and functionality of VLANs
Port modes
Tagging
MVRP
IRB

Demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 bridging and VLANs
Interfaces and ports
VLANs
MVRP
IRB
Provider bridging

Identify the concepts, benefits, operation, or functionality of Spanning Tree Protocol and its variants
STP, RSTP, MSTP and VSTP concepts
Port roles and states
BPDUs
Convergence and reconvergence
Spanning-tree security

Demonstrate knowledge of how to configure, monitor or troubleshoot STP and its variants
Spanning-tree protocols: STP, RSTP, MSTP, VSTP
BPDU, loop, and root protection

Identify the concepts, operation, or functionality of MPLS
MPLS terminology
MPLS packet header
End-to-end packet flow and forwarding
Labels and the label information base (LIB)
MPLS and routing tables
RSVP
LDP

Demonstrate knowledge of how to configure, monitor, or troubleshoot MPLS
MPLS forwarding
RSVP-signaled and LDP-signaled LSPs

Identify the concepts, operation and functionality of various protocol-independent routing components
Static, aggregate, and generated routes
Martian addresses
Routing instances, including RIB groups
Load balancing
Filter-based forwarding

Demonstrate knowledge of how to configure and monitor various protocol-independent routing components
Static, aggregate, and generated routes
Load balancing
Filter-based forwarding

Identify the concepts, operation, or functionality of OSPF
Link-state database
OSPF packet types
Router ID
Adjacencies and neighbors
Designated router (DR) and backup designated router (BDR)
OSPF area and router types
LSA packet types

Demonstrate knowledge of how to configure, monitor and troubleshoot IS-IS
Areas, interfaces and neighbors
Additional basic options
Routing policy application
Troubleshooting tools

Identify the concepts, operation and functionality of IS-IS
Link-state database
IS-IS PDUs
TLVs
Adjacencies and neighbors
Levels and areas
Designated intermediate system (DIS)
Metrics

Demonstrate knowledge of how to configure, monitor and troubleshoot IS-IS
Levels, interfaces, and adjacencies
Additional basic options
Routing policy application
Troubleshooting tools

Identify the concepts, operation and functionality of BGP
BGP basic operation
BGP message types
Attributes
Route/path selection process
IBGP and EBGP functionality and interaction

Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
Groups and peers
Additional basic options
Routing policy application

Identify the concepts, operation, or functionality of Layer 2 bridging for the Junos OS
Service Provider switching platforms
Bridging elements and terminology
Frame processing
Virtual Switches
Provider bridging (e.g., Q-in-Q tunneling)

Identify the concepts, benefits, and functionality of VLANs
Port modes
Tagging
MVRP
IRB

Demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 bridging and VLANs
Interfaces and ports
VLANs
MVRP
IRB
Provider bridging

Identify the concepts, benefits, operation, or functionality of Spanning Tree Protocol and its variants
STP, RSTP, MSTP and VSTP concepts
Port roles and states
BPDUs
Convergence and reconvergence
Spanning-tree security

Demonstrate knowledge of how to configure, monitor or troubleshoot STP and its variants
Spanning-tree protocols: STP, RSTP, MSTP, VSTP
BPDU, loop, and root protection

Identify the concepts, operation, or functionality of MPLS
MPLS terminology
MPLS packet header
End-to-end packet flow and forwarding
Labels and the label information base (LIB)
MPLS and routing tables
RSVP
LDP

Demonstrate knowledge of how to configure, monitor, or troubleshoot MPLS
MPLS forwarding
RSVP-signaled and LDP-signaled LSPs

Identify the concepts, operation, or functionality of IPv6
IPv4 vs. IPv6
Address types, notation and format
Address scopes
Autoconfiguration
Tunneling

Demonstrate knowledge of how to configure, monitor, or troubleshoot IPv6
Interfaces
Static routes
Dynamic routing: OSPFv3, IS-IS, BGP
IPv6 over IPv4 tunneling

Identify the concepts, requirements, or functionality of IP tunneling
Tunneling applications and considerations
GRE
IP-IP

Demonstrate knowledge of how to configure, monitor, or troubleshoot IP tunnels
GRE
IP-IP

Identify the concepts, operation and functionality of various protocol-independent routing components
Static, aggregate, and generated routes
Martian addresses
Routing instances, including RIB groups
Load balancing
Filter-based forwarding

Demonstrate knowledge of how to configure and monitor various protocol-independent routing components
Static, aggregate, and generated routes
Load balancing
Filter-based forwarding

Identify the concepts, operation, or functionality of OSPF
Link-state database
OSPF packet types
Router ID
Adjacencies and neighbors
Designated router (DR) and backup designated router (BDR)
OSPF area and router types
LSA packet types

Demonstrate knowledge of how to configure, monitor and troubleshoot IS-IS
Areas, interfaces and neighbors
Additional basic options
Routing policy application
Troubleshooting tools

Identify the concepts, operation and functionality of IS-IS
Link-state database
IS-IS PDUs
TLVs
Adjacencies and neighbors
Levels and areas
Designated intermediate system (DIS)
Metrics

Demonstrate knowledge of how to configure, monitor and troubleshoot IS-IS
Levels, interfaces, and adjacencies
Additional basic options
Routing policy application
Troubleshooting tools

Identify the concepts, operation and functionality of BGP
BGP basic operation
BGP message types
Attributes
Route/path selection process
IBGP and EBGP functionality and interaction

Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP
Groups and peers
Additional basic options
Routing policy application

Identify the concepts, operation, or functionality of Layer 2 bridging for the Junos OS
Service Provider switching platforms
Bridging elements and terminology
Frame processing
Virtual Switches
Provider bridging (e.g., Q-in-Q tunneling)

Identify the concepts, benefits, and functionality of VLANs
Port modes
Tagging
MVRP
IRB

Demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 bridging and VLANs
Interfaces and ports
VLANs
MVRP
IRB
Provider bridging

Identify the concepts, benefits, operation, or functionality of Spanning Tree Protocol and its variants
STP, RSTP, MSTP and VSTP concepts
Port roles and states
BPDUs
Convergence and reconvergence
Spanning-tree security

Demonstrate knowledge of how to configure, monitor or troubleshoot STP and its variants
Spanning-tree protocols: STP, RSTP, MSTP, VSTP
BPDU, loop, and root protection

Identify the concepts, operation, or functionality of MPLS
MPLS terminology
MPLS packet header
End-to-end packet flow and forwarding
Labels and the label information base (LIB)
MPLS and routing tables
RSVP
LDP

Demonstrate knowledge of how to configure, monitor, or troubleshoot MPLS
MPLS forwarding
RSVP-signaled and LDP-signaled LSPs

Identify the concepts, operation, or functionality of IPv6
IPv4 vs. IPv6
Address types, notation and format
Address scopes
Autoconfiguration
Tunneling

Demonstrate knowledge of how to configure, monitor, or troubleshoot IPv6
Interfaces
Static routes
Dynamic routing: OSPFv3, IS-IS, BGP
IPv6 over IPv4 tunneling

Identify the concepts, requirements, or functionality of IP tunneling
Tunneling applications and considerations
GRE
IP-IP

Demonstrate knowledge of how to configure, monitor, or troubleshoot IP tunnels
GRE
IP-IP

Identify the concepts, benefits, applications, or requirements of high availability
Link aggregation groups (LAG) and multichassis LAGs (MC-LAGs)
Graceful restart (GR)
Graceful Routing Engine switchover (GRES)
Nonstop active routing (NSR)
Nonstsop bridging (NSB)
Bidirectional Forwarding Detection (BFD)
Virtual Router Redundancy Protocol (VRRP)
Unified In-Service Software Upgrade (ISSU)
Ethernet Ring Protection (ERP)

Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components
LAG, MC-LAG
GR, GRES, NSR and NSB
VRRP
ISSU

Preparation
The resources listed on this section are recommended, but do not guarantee passing scores on JNCP exams. Success depends on each candidate’s motivation, experience, and dedication. Candidates may find additional resources not listed on this page helpful as well.

Junos documentation
A Border Gateway Protocol 4 (BGP-4)
Day One: Exploring IPv6
Day One: Routing the Internet Protocol
Real-world hands-on experience

Question No : 1
Which two statements are correct regarding TLVs in IS-IS? (Choose two.)

A. PDUs contain different TLVs.
B. TLVs contain different PDUs.
C. The TLV attributes are type, length, and value.
D. The TLV attributes are time. Length, and variable.

Answer: A,C

Question No : 2
What is the OSPFv3 router ID?

A. 0.0.0.0
B. 192.168.1.1
C. 2001::1:2
D. 2001::192.168.1.1

Answer: B

Question No : 3
What are two methods for decreasing the size of an OSPF link-state database (LSDB)? (Choose two.)

A. Ensure that all routers on a shared segment are configured with a priority value of 0.
B. Use an interface type of p2p when possible.
C. Segment large groups of routers into areas.
D. Change a stub area to NSSA when possible.

Answer: B,C

Question No : 4
You are setting up a new IS-IS adjacency between two devices. The new Level1 adjacency is not establishing.
What would cause this behavior?

A. The routers support a minimum MTU of 1492 bytes.
B. The Level 1 routers have mismatched area IDs.
C. The router ID has not been explicitly configured.
D. The IP addresses are on different subnets.

Answer: B

Question No : 5
Because of recent network failures, additional circuits have been purchased. In addition,
Fast reroute has been configured on critical MPLS LSPs.
When the next failure occurs, which two time intervals will affect fast reroute? (Choose two.)

A. The amount of time required to reroute the traffic onto the detour
B. The amount of time to detect a link or node failure
C. The amount of time required to recalculate the best detour
D. The amount of time it takes to ping the gateway on the detour link

Answer: A,B

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