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

  • 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

Certificates speak before you do. When employers scan a resume, the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services credential tells them your skills have been measured against a recognized standard. PracticeTorrent supports your 642-887 exam preparation with 231+ Q&As, expert-verified answers, and a free demo to start from.

Cisco 642-887 Exam Overview:

Certification Vendor:Cisco
Exam Name:Implementing Cisco Service Provider Next-Generation Core Network Services (SPNGN2)
Exam Number:642-887
Passing Score:Cisco does not publicly disclose (historically ~790/1000)
Available Languages:English
Real Exam Qty:Approximately 45–55
Exam Price:USD 250 (historical, varies by region)
Exam Duration:90 minutes
Certificate Validity Period:3 years (certification validity; legacy exam no longer active)
Exam Format:Multiple answer, Simulation / troubleshooting tasks, Multiple choice
Related Certifications:CCNA Service Provider
CCNP Service Provider
Recommended Training:Cisco Learning Network (Service Provider resources)
Exam Registration:Pearson VUE Cisco Exams
Cisco Certification & Exams
Sample Questions:Free Download 642-887 exam dumps pdf
Exam Way:Proctored exam via Pearson VUE (legacy delivery model)
Pre Condition:No formal prerequisite, but CCNA-level knowledge recommended (especially routing and switching fundamentals)
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications.html

Cisco 642-887 Exam Syllabus Topics:

SectionObjectives
Service Provider Services- Multicast services
  • 1. RPF and multicast routing behavior
    • 2. PIM-SM / PIM-SSM deployment
      - IPv6 integration
      • 1. IPv6 routing protocols in SP networks
        • 2. Dual-stack deployment strategies
          Service Provider Core Network Architecture- MPLS core design and implementation
          • 1. MPLS forwarding fundamentals
            • 2. Label distribution protocols (LDP, RSVP-TE)
              - IP routing in service provider networks
              • 1. BGP scaling and policy control
                • 2. IS-IS / OSPF in SP environments
                  Traffic Engineering and QoS- Quality of Service design
                  • 1. Classification and marking
                    • 2. Queuing and congestion management
                      - MPLS Traffic Engineering
                      • 1. Tunnel optimization
                        • 2. Constraint-based routing (CSPF)

                          642-887 Exam FAQ: Facts, Preparation, and Support

                          The 642-887 exam consists of Approximately 45–55 questions to be answered within 90 minutes minutes. Timed practice under the same constraints is the standard way to make that pace feel comfortable rather than rushed.

                          The official training options for 642-887 exam candidates include:

                          Official courses cover the theory; self-paced practice questions cover the application. Together they make a complete preparation loop.

                          No formal prerequisite, but CCNA-level knowledge recommended (especially routing and switching fundamentals)

                          The official outline organizes the 642-887 exam into weighted domains such as:

                          • Traffic Engineering and QoS ()
                          • Service Provider Core Network Architecture ()
                          • Service Provider Services ()

                          The Cisco Implementing Cisco Service Provider Next-Generation Core Network Services practice questions at PracticeTorrent follow this same objective map, so every hour of review lands on exam-relevant ground.

                          The 642-887 exam is the official assessment for the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services certification from Cisco. It verifies that you can apply the published exam objectives to practical scenarios, and the resulting credential showcases your capacity in a way employers immediately recognize — a concrete step in any all-round self-improvement plan.

                          Twenty-four-hour online service, with real people behind it. Once you have purchased the 642-887 exam materials, our staff shoulders the responsibility of answering your questions patiently and immediately — whether it is a download issue, a question about the content, or help understanding the refund policy. Good materials matter, but so does never being stuck alone with them.

                          You need Cisco does not publicly disclose (historically ~790/1000) to pass the 642-887 exam, and the fee is USD 250 (historical, varies by region) per attempt. Solid preparation before booking is the most cost-effective strategy — practice until your timed scores sit consistently above the passing mark.

                          Yes, by design. Payments for the Cisco Implementing Cisco Service Provider Next-Generation Core Network Services materials go through an established, secure payment platform, so your card data is protected by the gateway itself. Your personal information — email, address, purchase details — is never leaked or shared with third parties. And if anything does go wrong, the twenty-four-hour support team is there to set it right. A purchase should bring you study materials, not new troubles.

                          You can register through the official channels below:

                          Once your practice results are consistent, choose a date and let the deadline sharpen your final review.

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

                          Question #1

                          The regional operation center deploys a Cisco MPLS TE tunnel over the company's core network. The Cisco MPLS TE tunnel is up and no error is detected, but no traffic is traversing the tunnel. Which two issues are possible causes? (Choose two.)

                          • A. The interior gateway protocol has no knowledge of the Cisco MPLS TE tunnel.
                          • B. The end-to-end label switched path has not been established.
                          • C. The customer edge router is injecting rogue IPv4 prefixes in the provider edge routing table.
                          • D. The provider edge router is not performing the correct redistribution.
                          • E. No static route has been defined to route data traffic over the Cisco MPLS TE tunnel.
                          Reveal Solution  Discussion  0

                          Correct Answer: A,E  🗳️

                          Question #2

                          Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?

                          • A. LDP session protection
                          • B. IGP session protection
                          • C. BFD
                          • D. LDP-IGP synchronization
                          Reveal Solution  Discussion  0

                          Correct Answer: D  🗳️

                          Question #3


                          Refer to the exhibit. Which result occurs from this configuration?

                          • A. The tunnel comes up because of the explicit path configuration and disregards all CSPF calculations.
                          • B. If the explicit path becomes unavailable, the tunnel fails.
                          • C. If the explicit path becomes unavailable, the tunnel falls back to dynamic routing paths.
                          • D. The traffic through the tunnel is limited to 65,000 Kbps of bandwidth.
                          Reveal Solution  Discussion  0

                          Correct Answer: C  🗳️

                          Question #4

                          On Cisco routers, how is hierarchical QoS implemented?

                          • A. Within the child policy, reference another parent policy using the policy-map command.
                          • B. Within the parent policy, reference another child policy using the policy-map command.
                          • C. Use the policy-map command within a service-policy to implement nested policy-maps.
                          • D. Within the parent policy-map, reference another child policy-map using the service-policy command.
                          Reveal Solution  Discussion  0

                          Correct Answer: D  🗳️

                          Question #5

                          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  🗳️

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