Try Cisco : 642-437 valid & accurate questions and answers
Updated: Sep 14, 2026
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Cisco 642-437 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) |
| Exam Number: | 642-437 |
| Real Exam Qty: | Approximately 250–270 |
| Exam Price: | USD 250 (typical Cisco exam fee) |
| Passing Score: | Not publicly disclosed (Cisco typically reports pass/fail only) |
| Certificate Validity Period: | Cisco certificate validity was aligned to CCNP lifecycle — historically ~3 years (exam retired, so no current validity) |
| Exam Format: | Simulation/Scenario-based, Drag and Drop, Multiple Choice, Multiple Answer |
| Exam Duration: | 120 minutes |
| Related Certifications: | Cisco Certified Network Professional Voice (CCNP Voice) |
| Available Languages: | English |
| Sample Questions: | Cisco 642-437 Sample Questions |
| Exam Way: | Historically delivered at Pearson VUE testing centers; exam has been retired and is no longer available |
| Pre Condition: | Valid CCNA-level knowledge recommended (no strict prerequisite), familiarity with voice fundamentals and Cisco IOS configurations |
| Official Syllabus URL: | https://www.cisco.com/site/us/en/learn/training-certifications/exams/retired.html |
Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: VoIP Fundamentals | - Voice over IP basics
|
| Topic 2: Quality of Service (QoS) | - QoS mechanisms
|
| Topic 3: Cisco Unified Border Element (CUBE) | - CUBE features and configuration
|
| Topic 4: Troubleshooting | - Troubleshooting voice and QoS issues
|
| Topic 5: Cisco Unified Communications Manager Express | - CUCME configuration
|
| Topic 6: Voice Gateways and Call Routing | - Gateway implementation and configuration
|
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Which statement about a dial peer is true?
- A. A dial peer manipulates digits in a dial string before it passes the dial string to the telephone device.
- B. A dial peer is similar to static routes; it defines where calls originate and terminate and which path the calls take through the network.
- C. A dial peer is used to control the number of digits that are stripped before the dialed string is passed to the telephony interface.
- D. A dial peer describes the number and pattern of digits that a user dials to reach a particular phone number.
Correct Answer: B 🗳️
Refer to the exhibit.
Cisco 642-437 Exam
When a voice-signaling packet arrives at the router with a DSCP value of AF31, which two options describe how it will be treated? (Choose two.)
- A. The packet will be marked as DSCP 46 because that is the first set statement in the policy map.
- B. The packet will match class map voip-signaling.
- C. The packet will be re-marked as DSCP 26 and then to AF31.
- D. The packet will be re-marked with a DSCP value of AF31.
- E. The packet will not match any class maps.
Correct Answer: B,D 🗳️
Which three methodologies are specific types of QoS used on a 512-kb/s point-to-point IP WAN link? (Choose three.)
- A. LLQ
- B. Multilink PPP
- C. header compression
- D. FRF.12
- E. RSVP
Correct Answer: A,C,D 🗳️
Which version of Cisco Unified Communications Manager Express is recommended that is supported on endpoints running Cisco IOS 15.0(1)M?
- A. 8
- B. 7.1
- C. 8.5
- D. 7
Correct Answer: B 🗳️
A call is received on a voice gateway from a Session Initiation Protocol-based Internet source. The call is destined for a telephone that is connected directly to the gateway. Which type of dial-peer is considered outgoing?
- A. VoIP
- B. Foreign Exchange Office
- C. Foreign Exchange Station
- D. plain old telephone service
Correct Answer: D 🗳️
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