JNCIS-M Exam Objectives (Exam: JN0-303)

This list is intended to provide a general view of the skill set required to successfully complete the specified certification exam. Topics listed are subject to change.

• Routing Policy
• Open Shortest Path First (OSPF)
• Intermediate System to Intermediate System (IS-IS)
• Border Gateway Protocol (BGP)
• Multicast
• Multiprotocol Label Switching (MPLS)
• Virtual Private Networks (VPNs)
• Class of Service (CoS)
• Security
• IPv6

• Describe JUNOS software routing policy design considerations-import; export; terms; match criteria; actions; default actions.
• Identify the operation of community regular expressions.
• Identify the operation of AS path regular expressions.
• Evaluate the outcome of a policy using a subroutine.
• Evaluate the outcome of a policy using a policy expression.

Open Shortest Path First (OSPF)

• Define the functions of the following OSPF area designations and functions-backbone area; non-backbone area; stub area; not-so-stubby area.
• Identify OSPF authentication types.
• Identify the configuration of OSPF route summarization.
• Determine route selection based on IGP route metrics and the Shortest Path First (SPF) Algorithm.
• Identify the routing policy capabilities of OSPF.
• Describe the functionality of the OSPF LSA types.
• Describe the relationship between the loopback address and the router ID.
• Define the capabilities and operation of Graceful Restart.

Intermediate System to Intermediate System (IS-IS)

• Define the functions of the following IS-IS parameters-authentication; mesh groups; wide metrics; route preferences; IS-IS levels; LSP lifetime; overload; routing policy.
• Describe characteristics of IS-IS adjacencies.
• Describe inter-area routing in IS-IS.
• Identify the operation and database characteristics of a multi-area IS-IS network.
• Describe the functionality of the IS-IS protocol data units.
• Describe the functionality of the defined IS-IS TLVs.
• Describe ISO network addressing as it applies to IS-IS.
• Determine route selection based on IGP route metrics and the Shortest Path First (SPF) Algorithm.
• Define the capabilities and operation of Graceful Restart.
• Identify the correct configuration of IS-IS route summarization.

Border Gateway Protocol (BGP)

• Describe the BGP route selection process and CLI commands used to verify its operation.
• Define the functions of the following BGP parameters-passive; authentication; prefix limits; multipath; multihop.
• Identify the functionality and alteration of the BGP attributes.
• Define the capabilities and operation of Graceful Restart.
• Describe the operation and configuration of a route reflection BGP network.
• Describe the operation and configuration of a confederation BGP network.
• Define the configuration and consequences of BGP route flap damping.
• Identify the characteristics of multiprotocol BGP and list the reasons for enabling it.

Multicast

• Identify the PIM-SM rendezvous point election mechanisms.
• Describe the operation of a multicast network using each of the RP election mechanisms.
• Define the methods available to scope multicast traffic.
• Describe the use and configuration of MSDP within a single PIM domain.
• Describe the use and operation of MSDP across multiple PIM domains.
• Describe methods for maintaining separate unicast and multicast forwarding topologies.

Multiprotocol Label Switching (MPLS)

• Define the functions and characteristics of RSVP.
• Define the functions and characteristics of LDP.
• Identify the operational steps of the constrained shortest path first algorithm.
• Describe the extensions to OSPF that support traffic engineering.
• Describe the extensions to IS-IS that support traffic engineering.
• Define the reason(s) for configuring the following LSP attributes: primary; secondary; administrative groups; adaptive settings; priority; preemption; optimization; forwarding adjacencies into IGPs; fast reroute; metric; time-to-live options; auto-bandwidth; explicit null.

Virtual Private Networks (VPNs)

• Identify the differences between a CPE and a provider-provisioned VPN.
• Describe the operation of the control plane in a Layer 3 VPN environment.
• Describe the operation of the data plane in a Layer 3 VPN environment.
• Identify the steps involved in configuring a Layer 3 VPN.
• Identify the differences between a Layer 2 and a Layer 3 VPN.
• Define the functionality of circuit cross-connect and its configuration steps.
• Describe the steps involved in configuring a Kompella Layer 2 VPN.
• Describe the steps involved in configuring and verifying a Martini Layer 2 VPN.

Class of Service (CoS)

• Identify CoS related functions.
• Describe methods used to apply CoS parameters to IP traffic.
• Describe methods used to apply CoS parameters to MPLS traffic.
• Define the queuing strategies implemented on a Juniper Networks router.
• List the steps involved in configuring a class of service network.

Security

• Define the main principles of network security.
• Identify firewall filter capabilities and applications for securing a network.
• Describe user authentication and access mechanisms within the JUNOS software.
• Describe the use of filters in controlling network attacks.

IPv6

• Describe the IPv6 protocol headers and their functions.
• Define the process used to address IPv6 hosts.
• Identify the routing protocol capabilities of IPv6.
• Identify the steps required to configure IPv6 on a Juniper Networks router.