Implementing Cisco Service Provider Next-Generation Core Network Services: 642-887 Exam
"Implementing Cisco Service Provider Next-Generation Core Network Services", also known as 642-887 exam, is a Cisco Certification. With the complete collection of questions and answers, PrepAwayPDF has assembled to take you through 231 Q&As to your 642-887 Exam preparation. In the 642-887 exam resources, you will cover every field and category in CCNP Service Provider Certification helping to ready you for your successful Cisco Certification.
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Cisco 642-887 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Service Provider Next-Generation Core Network Services |
| Exam Number: | 642-887 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | Retired |
| Real Exam Qty: | 65-130 |
| Available Languages: | English |
| Related Certifications: | Cisco Certified Network Professional (CCNP) Service Provider |
| Exam Format: | Multiple Response, Multiple Choice |
| Sample Questions: | DOWNLOAD DEMO |
| 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:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Multiprotocol Label Switching (MPLS) Technologies | - LDP and IGP synchronization - MPLS over IOS, IOS-XE, IOS-XR - MPLS Traffic Engineering (MPLS-TE) - MPLS fundamentals and label distribution | |
| Topic 2: Configuration and Implementation | - Quality of service configurations - Traffic policy and classification implementation - IOS, IOS-XE and IOS-XR commands for core features | |
| Topic 3: Quality of Service (QoS) in Service Provider Networks | 38% | - MQC for QoS on Cisco platforms - Classification, marking, congestion management and avoidance - Traffic policing and shaping - Hierarchical QoS and trust boundaries - DiffServ and IntServ QoS models |
| Topic 4: Service Provider Core Network Features | - VPLS and provider edge concepts - Network architecture and service models - Core routing and forwarding |
642-887 Exam Facts, Digital Convenience and Global Support
- Configuration and Implementation ()
- Multiprotocol Label Switching (MPLS) Technologies ()
- Quality of Service (QoS) in Service Provider Networks (38%)
Cisco Implementing Cisco Service Provider Next-Generation Core Network Services Sample Questions:
On a Cisco IOS XR router, which mechanism protects the router resources by filtering and policing the packets flows that are destined to the router that is based on defined flow-type rates?
- A. Management Plane Protection
- B. LPTS
- C. Control Plane Policing
- D. NetFlow
- E. LLQ
- F. ACL
- G. Committed Access Rate
Correct Answer: B 🗳️
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A customer MPLS domain recently required an excessive time to reconverge In response, a high availability solution will be deployed. Which command set should be issued to improve LDP high availability on IOS XE instances?
A)
B)
C)
D)
- A. Option B
- B. Option D
- C. Option C
- D. Option A
Correct Answer: C 🗳️
Which field in the IPv6 header prevents transit routers from examining the inner packet?
- A. hop limit
- B. flow label
- C. next header
- D. traffic class
Correct Answer: B 🗳️
Which QoS mechanism is used for congestion avoidance?
- A. traffic policing
- B. LLQ
- C. WRED
- D. LFI
- E. CBWFQ
Correct Answer: C 🗳️
How is bandwidth recalculated when utilizing the automatic bandwidth adjustment feature for MPLS TE?
- A. The tunnel's output average is periodically sampled and then the bandwidth is adjusted to the largest sample obtained during the period, or to the configured maximum
- B. Ping is used to measure congestion and the bandwidth is adjusted to either the minimum, average, or maximum configured bandwidth value
- C. The tunnel's output is sampled and then the bandwidth is adjusted by a configured percentage until the configured maximum value is reached
- D. Ping is used to measure congestion and the bandwidth is adjusted by a configured percentage until the maximum value is reached
Correct Answer: A 🗳️
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