- Exam Code: 642-887
- Exam Name: Implementing Cisco Service Provider Next-Generation Core Network Services
- Updated: Aug 28, 2025
- Q & A: 231 Questions and Answers
Cisco 642-887 actual dump : Implementing Cisco Service Provider Next-Generation Core Network Services
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Cisco 642-887 Exam Topics:
| Section | Weight | Objectives |
|---|---|---|
| QOS in a Service Provider IP NGN Environment | 38% | 1 Describe the DiffServ and IntServ QoS models 2 Describe the QoS mechanisms (classification and marking, congestion management and avoidance, traffic policing and shaping) 3 Describe IPv6 Flow Label 4 Describe trust boundaries in enterprise and SP environments 5 Describe Cisco MQC for QoS configurations 6 Describe hierarchical QoS configurations 7 Describe the Cisco NBAR feature for discovering network protocols and for packets classifications 8 Describe the typical Edge PE routers and Core P routers QoS requirements 9 Implement classification and marking in an inter-domain network using QPPB on Cisco IOS-XR and IOS-XE 10 Implement class-based markings on Cisco IOS-XR and IOS-XE 11 Implement QoS pre-classify on tunnel interface on Cisco IOS-XR and IOS-XE 12 Implement CB-WFQ on Cisco IOS-XR and IOS-XE 13 Implement LLQ on Cisco IOS-XR and IOS-XE 14 Implement WRED on Cisco IOS-XR and IOS-XE 15 Implement traffic policing on Cisco IOS-XR and IOS-XE 16 Implement traffic shaping on Cisco IOS-XR and IOS-XE 17 Describe LPTS and hardware rate limiters on Cisco IOS-XR routers 18 Describe MPLS EXP bits 19 Describe MPLS QoS implementation concepts and models 20 Implement MPLS DiffServ tunneling on Cisco IOS-XR and IOS-XE 21 Troubleshoot QoS IOS-XR and IOS-XE configuration errors |
| MPLS/LDP in a Service Provider IP NGN Environment | 32% | 1 Describe the CEF, FIB, LFIB and LIB tables on Cisco routers 2 Describe MPLS labels and label stack operations on Cisco routers 3 Describe LDP operations in Cisco routers 4 Describe MPLS OAM (MPLS LSP ping and MPLS traceroute) 5 Describe MPLS applications in service provider environment 6 Implement LDP on Cisco IOS-XR and IOS-XE 7 Implement LDP high availability features on Cisco IOS-XR and IOS-XE 8 Troubleshoot LDP on IOS-XR and IOS-XE configuration errors |
| Transport Technologies | 8% | 1 Describe the SP core transition from ATM/SONET/SDH based backbone to packet based IP/MPLS backbone 2 Implement 10/40/100 Gigabit Ethernet Interfaces on Cisco IOS-XR routers 3 Describe DWDM, IPoDWDM and ROADM 4 Implement IPoDWDM controller/interface on Cisco IOS-XR routers |
| MPLS/LDP in a Service Provider IP NGN Environment | 22% | 1 Describe MPLS traffic engineering (TE) concepts 2 Describe MPLS TE constraint-based path computations 3 Describe the details of MPLS TE tunnels, including path setup procedures and path maintenance 4 Describe methods of assigning traffic into MPLS TE tunnels 5 Implement MPLS TE tunnels on Cisco IOS-XR and IOS-XE 6 Implement MPLS TE bandwidth control on Cisco IOS-XR and IOS-XE 7 Implement MPLS TE link and node protections on Cisco IOS-XR and IOS-XE |
Here are the topics of Cisco 642-887 Exam
Candidates must know the topics before they start of preparation. Because it will really help them in hitting the core. Our Cisco 642-887 exam dumps will include the following topics:
QOS in a Service Provider IP NGN Environment 38% MPLS/LDP in a Service Provider IP NGN Environment 32% MPLS/LDP in a Service Provider IP NGN Environment 22% Transport Technologies 8%
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