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Cisco 642-437 Exam Overview:
| Certification Vendor: | Cisco Systems |
|---|---|
| Exam Name: | Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) |
| Exam Number: | 642-437 |
| Real Exam Qty: | 55-65 |
| Related Certifications: | Cisco Certified Network Professional (CCNP) Voice Cisco Unified Communications certification track Cisco Certified Voice Professional (CCVP) |
| Certificate Validity Period: | Retired |
| Available Languages: | English |
| Exam Format: | Simulations / Simlets (legacy Cisco exam format), Multiple choice |
| Exam Duration: | 90 minutes |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Proctored exam delivered via Pearson VUE test centers or online proctoring (depending on availability at time of offering; exam is retired). |
| Pre Condition: | Recommended experience with Cisco networking fundamentals; often aligned with CCNA-level knowledge or Cisco voice track prerequisites. |
Cisco 642-437 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: VoIP Fundamentals | - Voice over IP architecture and components - Voice traffic signaling basics - Voice codecs and compression techniques |
| Topic 2: Signaling and Call Control | - Gateways and gatekeepers - Dial plans and call routing - SIP, H.323, and MGCP protocols |
| Topic 3: Troubleshooting and Operations | - Voice and QoS troubleshooting methodologies - Common VoIP deployment issues |
| Topic 4: Call Admission Control and Performance | - Call admission control mechanisms - Voice network performance considerations |
| Topic 5: Quality of Service (QoS) | - QoS models and mechanisms - Queuing techniques and bandwidth management - Traffic classification and marking - Congestion management and avoidance |
642-437 Exam Facts: Simulator, Companies and Formats
- Quality of Service (QoS) ()
- Call Admission Control and Performance ()
- Troubleshooting and Operations ()
Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:
Which four are benefits of VLANs in an organization? (Choose four.)
- A. better LAN infrastructure
- B. quick response to ping times
- C. physical topology independence
- D. switch is able to reboot faster
- E. increased security
- F. better VLAN database
- G. improved manageability
- H. increased performance
Correct Answer: C,E,G,H 🗳️
Which two signaling methods are supported on Cisco FXO and FXS ports? (Choose two.)
- A. ground-start
- B. kewlstart
- C. loop-start
- D. E&M
- E. AMI
Correct Answer: A,C 🗳️
What is the Cisco-recommended network requirement for voice and video?
- A. over 3.0 megabytes circuit
- B. Cisco AutoQoS
- C. -6 on gateway attenuation
- D. packet loss of 1 percent or less
Correct Answer: D 🗳️
Which command should you use to configure a T1 CAS trunk to use the most reliable line coding technique?
- A. linecode b8zs
- B. linecoding b8zs
- C. linecode ami
- D. linecoding ami
Correct Answer: A 🗳️
Which command is used to assign 20% of the bandwidth of an interface to a traffic class with priority?
- A. router(config-cmap)#bandwidth percent 20
- B. router(config-pmap-c)#bandwidth percent 20
- C. router(config-cmap)#priority percent 20
- D. router(config-pmap-c)#priority percent 20
Correct Answer: D 🗳️
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