JN0-660 Service Provider Routing and Switching, Professional (JNCIP-SP)

JNCIP-SP Exam Objectives (Exam: JN0-660)

OSPF
Describe the concepts, operation and functionality of OSPFv2 and OSPFv3
OSPF LSA types
OSPF area types and operations
LSA flooding through an OSPF multi-area network
DR/BDR operation
SPF algorithm
Metrics, including external metric types
Authentication options
Summarize and restrict routes
Virtual links
OSPFv2 vs OSPFv3
Given a scenario, demonstrate knowledge of how to configure and monitor single-area and multi-area OSPF
Implement OSPF routing policy

IS-IS
Describe the concepts, operation and functionality of IS-IS
IS-IS link-state PDU (LSP) types
IS-IS areas/levels and operations
LLSP flooding through an IS-IS multi-area network
DIS operation
SPF algorithm
Metrics, including wide metrics
Authentication options
Route summarization and route leaking
Given a scenario, demonstrate knowledge of how to configure and monitor single-area and multi-area IS-ISa
Implement IS-IS routing policy

BGP
Describe the concepts, operation and functionality of BGP
BGP route selection process
Next hop resolution
BGP attributes – concept and operation
BGP communities
Regular expressions
Multipath
Multihop
Load balancing
Advanced BGP options
BGP route damping
Multiprotocol BGP
Given a scenario, demonstrate knowledge of how to configure and monitor BGP
Route reflection
Confederations
Describe the concepts, operation and functionality of BGP scaling mechanisms
Implement BGP routing policy

Class of Service (CoS)
Describe the concepts, operation and functionality of Junos CoS
CoS processing on Junos devices
CoS header fields
Forwarding classes
Classification
Packet loss priority
Policers, including tricolor marking and hierarchical policers
Schedulers
Drop profiles
Shaping
Rewrite rules
Hierarchical scheduling (H-CoS) characteristics (high-level only)
Given a scenario, demonstrate knowledge of how to configure and monitor CoS

IP Multicast
Describe the concepts, operation and functionality of IP multicast
Components of IP multicast, including multicast addressing
IP multicast traffic flow
Any-Source Multicast (ASM) vs. Source-Specific Multicast (SSM)
RPF – concept and operation
IGMP
PIM dense-mode and sparse-mode
Rendezvous point (RP) – concept, operation, discovery, election
SSM – requirements, benefits, address ranges
MSDP, including single and multi-PIM domains
Anycast RP
Routing policy and scoping
Given a scenario, demonstrate knowledge of how to configure and monitor IGMP, PIM-DM, PIM-SM (including SSM) and MSDP
Implement IP multicast routing policy

MPLS
Describe the concepts, operation and functionality of MPLS
RSVP and LDP operation
Primary/secondary paths
LSP metrics, including interaction with IGP metrics
LSP priority and preemption
Fast reroute, link protection and node protection
LSP optimization
Routing table integration options for traffic engineering
RSVP reservation styles
Routing policy to control path selection
Advanced MPLS features
Describe the concepts, operation and functionality of Constrained Shortest Path First (CSPF)
TED
IGP extensions
CSPF algorithm – selecting the best path
Tie-breaking options
Administrative groups
Advanced CSPF options
Given a scenario, demonstrate knowledge of how to configure and monitor MPLS, LDP and RSVP
RSVP-signaled and LDP-signaled LSPs
Traffic protection mechanisms
CSPF
Implement MPLS routing policy

Layer 3 VPNs
Describe the concepts, operation and functionality of Layer 3 VPNs
Traffic flow – control and data planes
Full mesh vs. hub-and-spoke topology
VPN-IPv4 addressing
Route distinguishers
Route targets
Route distribution
Site of origin
Sham links
vrf-table-label
Layer 3 VPN scaling
Layer 3 VPN Internet access options
Given a scenario, demonstrate knowledge of how to configure and monitor the components of Layer 3 VPNs
Describe the concepts, operation and functionality of multicast VPNs
Next-generation MVPNs (NG-MVPN)
Flow of control and data traffic in a NG-MVPN
Describe Junos support for carrier-of-carriers and interprovider VPN models

Layer 2 VPNs
Describe the concepts, operation and functionality of BGP Layer 2 VPNs
Traffic flow – control and data planes
Forwarding tables
Connection mapping
Layer 2 VPN NLRI
Route distinguishers
Route targets
Layer 2 VPN scaling
Describe the concepts, operation and functionality of LDP Layer 2 circuits
Traffic flow – control and data planes
Virtual circuit label
Layer 2 interworking
Describe the concepts, operation and functionality of VPLS
Traffic flow – control and data planes
BGP VPLS label distribution
LDP VPLS label distribution
Route targets
Site IDs
Given a scenario, demonstrate knowledge of how to configure and monitor Layer 2 VPNs
BGP Layer 2 VPNs
LDP Layer 2 circuits
VPLS

Automation
Demonstrate basic knowledge of using automation scripts
Operation scripts
Commit scripts
Event scripts
QUESTION 1
You are the administrator for a network that uses IBGP. As the network grows, you must examine options to support increased scale. Which two scaling options should you consider? (Choose two.)

A. route reflection
B. areas
C. zones
D. confederations

Answer: A,D


QUESTION 2
You manage an MPLS network where the PE devices consist of multiple vendors. You are asked to conceal the MPLS topology for all LSPs. Which global configuration parameter will accomplish this?

A. Configure no-decrement-ttl on the ingress router only.
B. Configure no-propagate-ttl on the ingress router only.
C. Configure no-decrement-ttl on all routers within the MPLS network.
D. Configure no-propagate-ttl on all routers within the MPLS network.

Answer: D


QUESTION 3
In which two ways does VPLS populate the MAC table? (Choose two.)

A. dynamically using BGP
B. dynamically using the source MAC address on received frames
C. dynamically using LDP
D. statically using CLI

Answer: B,D


QUESTION 4
Which CoS feature supports per-VLAN queuing and scheduling?

A. multilevel scheduling
B. hierarchical scheduling
C. tagged queuing
D. per-instance queuing

Answer: C


QUESTION 5
Which two statements are true about OSPFv3? (Choose two.)

A. OSPFv3 uses a 32-bit router ID to uniquely identify a node in the network.
B. OSPFv3 uses a 128-bit router ID to uniquely identify a node in the network.
C. OSPFv3 routes are always preferred over OSPFv2 routes for all traffic.
D. OSPFv3 and OSPFv2 can be configured at the same time.

Answer: A,D

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