Cisco Implementing Cisco Service Provider Next-Generation Core Network Services : 642-887

  • Exam Code: 642-887
  • Exam Name: Implementing Cisco Service Provider Next-Generation Core Network Services
  • Updated: Oct 20, 2026     Q & A: 231 Questions and Answers

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About Cisco 642-887 Exam

Before you commit to any tool for the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services exam, look at who made it. PracticeTorrent materials come from experts with more than a decade in this field, compiled into 231 practice questions you can trust.

Cisco 642-887 Exam Overview:

Certification Vendor:Cisco
Exam Name:Implementing Cisco Service Provider Next-Generation Core Network Services
Exam Number:642-887
Available Languages:English
Related Certifications:Cisco Certified Network Professional (CCNP) Service Provider
Certificate Validity Period:Retired
Exam Format:Multiple Response, Multiple Choice
Exam Duration:90 minutes
Real Exam Qty:65-130
Sample Questions:Free Download 642-887 exam dumps pdf
Exam Way:Pearson VUE authorized testing centers (when the exam was active).
Pre Condition:Candidates should have solid experience with service provider networking, MPLS, QoS, and Cisco IOS platforms.
Official Syllabus URL:https://www.cisco.com/

Cisco 642-887 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Service Provider Core Network Features- VPLS and provider edge concepts
- Network architecture and service models
- Core routing and forwarding
Topic 2: Multiprotocol Label Switching (MPLS) Technologies- MPLS fundamentals and label distribution
- MPLS Traffic Engineering (MPLS-TE)
- MPLS over IOS, IOS-XE, IOS-XR
- LDP and IGP synchronization
Topic 3: Configuration and Implementation- Traffic policy and classification implementation
- IOS, IOS-XE and IOS-XR commands for core features
- Quality of service configurations
Topic 4: Quality of Service (QoS) in Service Provider Networks38%- Traffic policing and shaping
- MQC for QoS on Cisco platforms
- Hierarchical QoS and trust boundaries
- Classification, marking, congestion management and avoidance
- DiffServ and IntServ QoS models

Cisco Implementing Cisco Service Provider Next-Generation Core Network Services Exam: Questions Worth Your Time

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Cisco recommends these training resources for the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services exam:

    Follow the training with steady self-testing — the 231 practice questions from PracticeTorrent help you apply theory and fill any gaps the training leaves.

    The 642-887 exam is a Cisco certification exam validating the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services syllabus shown above. It belongs to these credential paths: Cisco Certified Network Professional (CCNP) Service Provider. Candidates in 2026 start with PracticeTorrent's 231 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.

    Candidates should have solid experience with service provider networking, MPLS, QoS, and Cisco IOS platforms. Since requirements change over time, confirm the latest on the official Cisco exam page before scheduling.

    Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 231 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.

    The official Cisco Implementing Cisco Service Provider Next-Generation Core Network Services outline defines 4 domains. The leading three are Service Provider Core Network Features, Configuration and Implementation, and Multiprotocol Label Switching (MPLS) Technologies. The full list is in the topics section above, and PracticeTorrent's 231 practice questions cover each one.

    The Cisco Implementing Cisco Service Provider Next-Generation Core Network Services exam contains 65-130 to complete within 90 minutes. Timed simulation in the PracticeTorrent Desktop Test Engine teaches that rhythm before exam day does.

    Pearson VUE authorized testing centers (when the exam was active). Register for the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services exam through these official channels:

      After booking, PracticeTorrent delivers your practice questions within 1 minute — preparation starts the same day.

      Cisco Implementing Cisco Service Provider Next-Generation Core Network Services Sample Questions:

      Question #1

      Refer to the exhibit.

      A network engineer who is working for an ISP wants to override the QoS that comes from the customer. The engineer wants to set a QoS value of 5 for all traffic. What are two reasons why the configuration is not working? (Choose two.)

      • A. The policy-map configuration needs to reference class-map Custom1
      • B. The number 350 in the xconnect command should appear after the encapsulation type
      • C. The service-policy command should point to the service policy, not to the class map
      • D. The service-policy configuration should be set as output
      • E. The set command should reference CoS instead of MPLS EXP bits
      Reveal Solution  Discussion  0

      Correct Answer: A,C  🗳️

      Question #2

      Only based on the Cisco IOS XR policy-map configuration exhibit,

      which statement is correct?

      • A. DSCP AF11 marked packets will be randomly dropped when the average queue length reaches 10,000 packets.
      • B. All DSCP AF41 marked packets will be dropped when the average queue length reaches 12,000 packets.
      • C. DSCP AF11 and AF41 marked packets are guaranteed a minimum bandwidth of 1 Mb/s.
      • D. DSCP AF11 and AF41 marked packets are guaranteed a maximum bandwidth of 1 Mb/s.
      Reveal Solution  Discussion  0

      Correct Answer: A  🗳️

      Question #3

      Reveal Solution  Discussion  0

      Correct Answer:


      Explanation
      All network packets are treated exactly the same-Best Effort
      It divides traffic classes and applies a different level of service for each class--Diffserv Traffic-handling characteristics are based on signaling events from network-based applications-- intServ All network packets are treated exactly the same-- Best Effort It divides traffic classes and applies a different level of service for each class-- Diffserv Traffic-handling characteristics are based on signaling events from network-based applications-- intServ

      Question #4

      In an IPv6 header, what does a flow label of zero indicate?

      • A. The packet belongs to the flow labeled zero.
      • B. The size of the flow label is zero bytes.
      • C. The packet is not part of any flow.
      • D. The label flow cannot have a value of zero.
      Reveal Solution  Discussion  0

      Correct Answer: C  🗳️

      Question #5

      An engineer wants to extend the trust boundary to a Cisco IP Phone. Which protocol should be used?

      • A. CDP
      • B. 802.1Q
      • C. ToS
      • D. CoS
      Reveal Solution  Discussion  0

      Correct Answer: A  🗳️

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