642-885 SPADVROUTE Deploying Cisco Service Provider Advanced Network Routing

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Exam Number 642-885 SPADVROUTE
Associated Certifications CCNP Service Provider
Duration 90 minutes (65 – 75 questions)
Available Languages English
Register Pearson VUE

The 642-885 SPADVROUTE, Deploying Cisco Service Provider Advanced Network Routing exam tests a candidate’s knowledge to configure, verify, and troubleshoot IPv4 and IPv6 advanced BGP configuration, IP multicasting, and IPv6 transition mechanisms in implementing and supporting a service provider network. This exam covers the Cisco IOS, IOS XE and IOS XR operating systems. Candidates can prepare for this exam by taking the Deploying Cisco Service Provider Advanced Network Routing (SPADVROUTE) course.

The 642-885, SPADVROUTE, Deploying Cisco Service Provider Advanced Network Routing exam is associated with the CCNP® Service Provider certification. This 90-minute, 65−75 questions exam tests a candidate’s knowledge in configuring, verifying, and troubleshooting IPv4 and IPv6 advanced BGP configuration, IP multicasting, and IPv6 transition mechanisms in implementing and supporting a service provider network. This exam covers the Cisco IOS, IOS-XE and IOS-XR operating systems. Candidates can prepare for this exam by taking the Deploying Cisco Service Provider Advanced Network Routing (SPADVROUTE) course. The exam is closed book and no outside reference materials are allowed.

The following topics are general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.

1.0 BGP Routing Features in a Service Provider IP NGN Environment 24%

1.1 Describe the BGP routing processes in IOS-XR

1.2 Configure the BGP timers on IOS-XR and IOS-XE

1.3 Describe the need for BGP confederations in BGP transit backbones

1.4 Design and implement BGP route reflectors to scale IBGP in BGP transit backbones on IOS-XR and IOS-XE

1.5 Implement BGP in SP IP NGN IOS-XR and IOS-XE PE routers to support multi-homed BGP Customers

1.6 Implement Remote Triggered Blackhole Filtering (RTBF) on IOS-XR and IOS-XE

1.7 Implement BGP TTL security on IOS-XR and IOS-XE

1.8 Implement BGP maximum-prefix on IOS-XR and IOS-XE

1.9 Implement BGP route dampening on IOS-XR and IOS-XE

1.10 Troubleshoot BGP IOS-XR and IOS-XE configuration errors in service provider environments

1.11 Optimize BGP IOS-XR configurations using af-groups, session-groups, and neighbor-groups

1.12 Optimize BGP IOS-XE configurations using peer-groups

2.0 Multicast Routing in a Service Provider IP NGN Environment 24%

2.1 Describe Multicast Concepts (multicast distribution trees, multicast routing protocols and IGMP operations)

2.2 Describe Any-source multicast (ASM) versus Source Specific Multicast (SSM)

2.3 Describe Intra Domain versus Inter Domain Multicast Routing

2.4 Describe the mapping of multicast IP addresses to MAC addresses

2.5 Describe and illustrate how RPF check can fail if the unicast and multicast topologies are non-congruent

2.6 Describe multiprotocol BGP functions in mroute distribution

2.7 Describe the principles and operations of PIM-SM

2.8 Describe multicast source discovery protocol (MSDP) operations

2.9 Describe methods used to secure multicast

2.10 Implement PIM-SM operations on IOS-XR and IOS-XE

2.11 Implement Auto-RP, PIMv2 BSR, Anycast RP on IOS-XR and IOS-XE

2.12 Implement Bi-Dir PIM operations in SP IP NGN environment on IOS-XR and IOS-XE

2.13 Implement SSM operations on IOS-XR and IOS-XE

2.14 Implement MSDP operations on IOS-XR and IOS-XE

2.15 Troubleshoot multicast routing IOS-XR and IOS-XE configurations errors in service provider environments

3.0 IPv6 in a Service Provider IP NGN Environment 27%

3.1 Describe DNS and DHCP operation in IPv6

3.2 Describe the fields that are used in the IPv6 header to support QoS functions

3.3 Describe Cisco IOS/IOS-XE and IOS-XR IPv6 network management and troubleshooting tools like traceroute/ping

3.4 Describe dual-stack implementations

3.5 Describe IPv6 tunneling mechanisms

3.6 Configure IPv6 multicast routing

3.7 Configure static IPv6-in-IPv4 tunnels on IOS-XR and IOS-XE

3.8 Configure dynamic 6to4 tunnels on IOS-XR and IOS-XE

4.0 High Availability Routing Features 25%

4.1 Implement NSF/NSR/Graceful Restart for BGP on IOS-XR and IOS-XE

4.2 Implement Bidirectional Forwarding Detection (BFD) for BGP on IOS-XR and IOS-XE

4.3 Implement high availability and optimization multicast routing features on IOS-XR and IOS-XE


QUESTION 1
When a BGP route reflector receives an IBGP update from a non-client IBGP peer, the route
reflector will then forward the IBGP updates to which other router(s)?

A. To the other clients only
B. To the EBGP peers only
C. To the EBGP peers and other clients only
D. To the EBGP peers and other clients and non-clients

Answer: C

Explanation:


QUESTION 2
Which two BGP mechanisms are used to prevent routing loops when using a design with
redundant route reflectors? (Choose two.)

A. Cluster-list
B. AS-Path
C. Originator ID
D. Community
E. Origin

Answer: A,C

Explanation:


QUESTION 3
Which two statements correctly describe the BGP ttl-security feature? (Choose two.)

A. This feature protects the BGP processes from CPU utilization-based attacks from EBGP
neighbors which can be multiple hops away
B. This feature prevents IBGP sessions with non-directly connected IBGP neighbors
C. This feature will cause the EBGP updates from the router to be sent using a TTL of 1
D. This feature needs to be configured on each participating BGP router
E. This feature is used together with the ebgp-multihop command

Answer: A,D

Explanation:


QUESTION 4
When implementing source-based remote-triggered black hole filtering, which two configurations
are required on the edge routers that are not the signaling router? (Choose two.)

A. A static route to a prefix that is not used in the network with a next hop set to the Null0 interface
B. A static route pointing to the IP address of the attacker
C. uRPF on all external facing interfaces at the edge routers
D. Redistribution into BGP of the static route that points to the IP address of the attacker
E. A route policy to set the redistributed static routes with the no-export BGP community

Answer: A,C

Explanation:


QUESTION 5
In Cisco IOS-XR, the maximum-prefix command, to control the number of prefixes that can be
installed from a BGP neighbor, is configured under which configuration mode?

A. RP/0/RSP0/CPU0:P2(config-bgp)#
B. RP/0/RSP0/CPU0:P2(config-bgp-af)#
C. RP/0/RSP0/CPU0:P2(config-bgp-nbr)#
D. RP/0/RSP0/CPU0:P2(config-bgp-nbr-af)#

Answer: D

Explanation:


QUESTION 6
In Cisco IOS-XR, the ttl-security command is configured under which configuration mode?

A. RP/0/RSP0/CPU0:P2(config)#
B. RP/0/RSP0/CPU0:P2(config-bgp)#
C. RP/0/RSP0/CPU0:P2(config-bgp-nbr)#
D. RP/0/RSP0/CPU0:P2(config-bgp-af)#
E. RP/0/RSP0/CPU0:P2(config-bgp-nbr-af)#

Answer: C

Explanation:

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