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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 |
| Related Certifications: | CCNP Service Provider CCIP |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Japanese |
| Passing Score: | Not published by Cisco |
| Exam Price: | USD 200-300 |
| Real Exam Qty: | 55-75 |
| Exam Duration: | 90 minutes |
| Exam Format: | Testlet, Multiple Choice Multiple Answer, Multiple Choice Single Answer, Simulation, Simlet, Drag and Drop |
| Recommended Training: | Maintaining Cisco Service Provider Quality of Service (MSPQS) Course |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | ![]() |
| Exam Way: | Proctored at Pearson VUE test centers; retired exam no longer available |
| Pre Condition: | Recommended: CCNA Service Provider, CCIP, or equivalent knowledge and hands-on experience in service provider networking |
| Official Syllabus URL: | https://www.cisco.com/c/en/us/training-events/training-certifications/exams/retired.html |
Cisco 642-785 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Traffic Policing and Shaping | 20% | - Congestion management and avoidance - Policing concepts and configuration - Shaping mechanisms and operation |
| QoS in MPLS and Service Provider Environments | 15% | - QoS for Layer 2 and Layer 3 VPN services - SLAs and QoS policy maintenance - End-to-end QoS across MPLS networks |
| Monitoring and Troubleshooting QoS | 20% | - Verifying QoS policies on IOS and IOS XR - Troubleshooting classification and marking issues - Analyzing queuing and congestion problems |
| Queuing and Scheduling Mechanisms | 25% | - Low Latency Queuing (LLQ) - Class-Based Weighted Fair Queuing (CBWFQ) - Modular QoS CLI (MQC) implementation |
| QoS Fundamentals in Service Provider Networks | 20% | - DiffServ, IntServ, and MPLS QoS integration - Quality of Service models and architectures - Classification and marking mechanisms |
Before You Book: Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Questions and Answers
At its core, the 642-785 exam is Cisco's gatekeeper for the CCNP Service Provider Operations certification — a Professional-level credential. It examines how well you apply the Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) objectives to realistic scenarios, which is why hands-on candidates tend to outperform pure memorizers. The credential also links into a wider path covering CCIP, CCNP Service Provider, so it works as both a standalone achievement and a stepping stone. In a market where certificates increasingly signal ability, passing 642-785 is a concrete, verifiable upgrade to your professional profile.
The Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam draws its questions from 5 domains, starting with Traffic Policing and Shaping (20%), Queuing and Scheduling Mechanisms (25%), and QoS in MPLS and Service Provider Environments (15%). Smart candidates read weightings as a resource map: heavy domains get the deepest practice, light domains get efficient review. You'll find the complete domain list in the exam topics section above — let it drive your schedule.
The Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam fits 55-75 questions into 90 minutes. Convert that into a pace before exam day: total minutes divided by question count gives you a per-item budget, and the discipline to flag-and-return when something overruns it. Practicing under a live timer — the Prep4SureReview test engines run one on every session — turns that discipline into reflex, so the clock works for you instead of against you.
The Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam requires Not published by Cisco to pass, and Cisco charges USD 200-300 per attempt — full price, every time, including retakes. That pricing structure rewards preparation: run timed self-assessments with Prep4SureReview practice questions, and only book your seat once your scores clear the bar consistently across multiple sessions. One well-prepared attempt is dramatically cheaper than two hopeful ones.
Officially, the Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam uses these formats: Multiple Choice Single Answer, Multiple Choice Multiple Answer, Drag and Drop, Simlet, Testlet, Simulation. Formats shape strategy — long scenario stems reward reading the final question sentence first, while multi-select items punish partial knowledge. The fix is exposure: Prep4SureReview's 91 practice questions rehearse you in every listed format until the mechanics are second nature and only the content demands your attention.
Cisco currently delivers the 642-785 exam in English, Japanese. Select whichever language lets you parse questions fastest under time pressure — borderline scores are often decided by reading speed, not knowledge. If English is your choice, daily sessions with Prep4SureReview's English 642-785 practice questions build exactly the vocabulary the exam uses.
The credential earned through the Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam remains valid for 3 years. Note the expiry date the day you pass and start researching recertification options well in advance — planned renewals are routine, last-minute ones are stressful. Because recertification rules belong to Cisco and change over time, verify the current policy on the official certification page as your renewal window approaches.
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Join the growing number of candidates preparing smarter: download the free 642-785 demo, and let Prep4SureReview's 91 practice questions carry your Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) preparation from first look to passing score.
Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) Sample Questions:
Refer to the exhibit. Voice quality is poor on calls placed between the two sites. What change would you
recommend to solve this problem?
- A. Set up WRED to help avoid link congestion.
- B. Increase the bandwidth of the voice priority queue.
- C. Lower the total bandwidth allocated for the video, critical, and class-default queues, because they are starving the voice queue.
- D. Change the voice class map to match DSCP EF or CS5.
Correct Answer: D 🗳️
Refer to the exhibit.
Which two statements are correct? (Choose two.)
- A. The traffic class cust2 is ensured a bandwidth of 51.2 kb/s.
- B. This example queues the traffic into different CBWFQ classes before the aggregate traffic is shaped.
- C. The policy map cust-policy specifies an average traffic shaping rate of 384 kb/s for the cust1 class and assigns the service policy cust1-classes to the cust1 class.
- D. This example is a hierarchical MQC example, and the cust-policy is the child policy.
- E. Within the cust1-classes policy, the gold class is guaranteed 50 percent of the bandwidth. Silver is guaranteed 20 percent of the bandwidth, and bronze is guaranteed 15 percent of the bandwidth.
- F. Within the cust2-classes policy, the gold class is guaranteed 30 percent of the S3/2 interface bandwidth. Silver is guaranteed 15 percent of the S3/2 interface bandwidth. Bronze is guaranteed 10 percent of the S3/2 interface bandwidth.
Correct Answer: C,E 🗳️
Which two IP SLA Probe types can be used to measure voice quality? (Choose two.)
- A. UDP Echo
- B. ICMP Path Jitter
- C. UDP MOS
- D. UDP Delay
- E. HTTP
- F. UDP Jitter
Correct Answer: B,F 🗳️
An MPLS VPN customer with managed CE services recently made some changes to their call manager configurations. Now the customer reports that their VoIP traffic voice quality is very poor. What could be a cause of the problem?
- A. The VoIP traffic class is not being policed at the CE router egress.
- B. The customer changed the codec used for voice compression from G.729 to G.711.
- C. The traffic shaping rate for the VoIP traffic class is too low.
- D. The VoIP traffic is being marked as DSCP EF.
- E. RTP header compression is used for the VoIP traffic class.
Correct Answer: B 🗳️
A customer reports that the packets from their custom TCP application, which is currently marked as DSCP AF43, is being dropped more frequently than desired. All of the links in service provider network are using DSCP-based WRED. What can be changed to best improve the drop rate of the customer's custom application without causing major problems for the other traffic classes?
- A. Remove WRED on all the links.
- B. Mark the custom application traffic to DSCP AF41 instead.
- C. Allocate more bandwidth to the AF43 traffic class.
- D. Mark the custom application traffic to DSCP EF instead.
- E. Use a different queuing method for the AF43 traffic class.
Correct Answer: B 🗳️
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