Try Cisco : 642-785 valid & accurate questions and answers
Updated: Sep 12, 2026
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Cisco 642-785 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Maintaining Cisco Service Provider Quality of Service (MSPQS) |
| Exam Number: | 642-785 |
| Real Exam Qty: | 40-60 |
| Exam Duration: | 90 minutes |
| Exam Price: | USD 300 (varies by region) |
| Related Certifications: | Cisco Service Provider QoS Specialist CCNP Service Provider |
| Available Languages: | English |
| Exam Format: | Multiple choice, Scenario-based questions, Simulation |
| Certificate Validity Period: | 3 years (typical Cisco certification validity) |
| Recommended Training: | CCNP Service Provider Learning Path Cisco QoS Training (Cisco Learning Network) |
| Exam Registration: | Pearson VUE Cisco Exams Cisco Certification Registration |
| Sample Questions: | Cisco 642-785 Sample Questions |
| Exam Way: | Computer-based exam delivered via Pearson VUE testing centers or online proctored exam |
| Pre Condition: | Recommended: CCNA or equivalent networking knowledge; Cisco Service Provider or CCNP-level experience is beneficial |
| Official Syllabus URL: | https://learningnetwork.cisco.com |
Cisco 642-785 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| QoS Troubleshooting and Monitoring | - Identifying QoS misconfiguration issues - Verification tools and commands |
| Service Provider QoS Implementation | - MPLS QoS and DiffServ tunneling - MQC (Modular QoS CLI) framework |
| QoS Fundamentals | - Traffic characteristics and service requirements - QoS models (Best Effort, IntServ, DiffServ) |
| QoS Classification and Marking | - Marking techniques (DSCP, CoS, IP Precedence) - Packet classification methods (ACLs, NBAR) |
| Congestion Management and Avoidance | - Congestion avoidance (WRED) - Queuing mechanisms (LLQ, CBWFQ) |
| Policing and Shaping | - Traffic policing concepts and configuration - Traffic shaping mechanisms and use cases |
Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:
When the RFC 3270 Short Pipe mode is used, the PHB at the egress router is based on which of these?
- A. The topmost MPLS label EXP value.
- B. The Differentiated Services Field value in the IP packet header.
- C. The packet is re-evaluated, remarked, and the PHB is based on this new marking.
- D. The MPLS VPN label EXP value.
Correct Answer: B 🗳️
What can be used to provide read-only access to QoS configuration information and statistics from a network management station?
- A. SYSLOG
- B. IP SLA
- C. NetFlow
- D. NBAR
- E. CISCO-CLASS-BASED-QOS-MIB
Correct Answer: E 🗳️
A customer reports drops for traffic in the BIZ-CRITICAL class. As part of the verification process you identify that there is a high number of random drops. Which of these can help address this problem?
- A. Increase the WRED min threshold value for the traffic class.
- B. Enable fair queuing for the BIZ-CRITICAL class.
- C. Decrease the queue limit for the traffic class.
- D. Decrease the WRED drop probability denominator for the class.
Correct Answer: A 🗳️
Which two Cisco IOS commands can be used to monitor QoS on a device? (Choose two.)
- A. show class-map
- B. show qos-dbl
- C. show qos-maps
- D. show service-policy
- E. show qos-interface
- F. show policy-map
Correct Answer: A,F 🗳️
DRAG DROP
Drag the definitions from the left onto the traffic classification on the right. Not all definitions will be used.
Correct Answer:
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