Testking CCVP 642-432
Cisco Voice Over IP Exam
Retired July 26, 2008
Exam Number: 642-432
Associated Certifications: CCVP, Cisco IP Communications Support Specialist, and Cisco Rich Media Communications Specialist
Duration: 75 minutes (55 - 65 questions)
Available Languages: English
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QUESTION 1:
Which type of signaling is DTMF? A. Supervisory
B. Route
C. Informational
D. Address
Answer: D Explanation:
Start dial supervision is the line protocol that defines how the equipment seizes the E&M
trunk and passes the address signaling information such as dual tone multifrequency
(DTMF) digits. Address Signaling
Address signaling typically represents the digits dialed (called party’s number). There are two options used to pass address information. Either Pulse dial (rotary dialing) or Tone
dial (DTMF) can be used. The default for Cisco routers and gateways is DTMF.
QUESTION 2:
You have set up a complex dial plan using translation rules. The following translation rule has been configured.
What output would correspond to the test translation-rule command?
translation-rule 1
rule 0 ^0.. 215550210 rule 1 ^1.. 215550211 rule 2 ^2.. 215550212 rule 3 ^3.. 215550213 rule 4 ^4.. 215550214 rule 5 ^5.. 215550215 rule 6 ^6.. 215550216 rule 7 ^7.. 215550217 rule 8 ^8.. 215550218 rule 9 ^9.. 215550210
A. test translation-rule 1512
The replaced number: 21555021512
B. test translation-rule 1555
The replaced number: 55521555021
C. test translation-rule 1617
The replaced number: 61721555021
D. test translation-rule 1910
The replaced number: 21555021910
TK
642-432
Answer: A
Explanation:
New Delhi(2-digit indial range)
!— Only relevant “IOS translation rule” output is presented
!
translation-rule 1
!– The “1″ above is the tag for the set. rule 0 ^0. 1011000
rule 1 ^1. 1011001 rule 2 ^2. 1011002 rule 3 ^3. 1011003 rule 4 ^4. 1011004 rule 5 ^5. 1011005 rule 6 ^6. 1011006 rule 7 ^7. 1011007 rule 8 ^8. 1011008 rule 9 ^9. 1011009
!
!– These rules replace the first digit of a 2-digit number with the corresponding
!– translation. The router looks for a 2-digit number starting with a leading [0-9].
!– The caret, “^” ensures the match only happens at the start of the digit string
!– rather than any occurrence in a digit string. This ensures the router makes the
!– translation only for the leading digits. By default, if an explicit match is made
!– on a digit (in this case the first digit) the router replaces it with the new
!– digits. Therefore, to keep the original numbering, the matched digit needs to be
!– replaced with the same digit at the end of the modified string. Once the call
!– comes in, the called number prepended with 101100 followed by the
!– original 2 digits.
!
voice-port 1/0:1 translate called 1 cptone IN
compand-type a-law
!
!– The translation rule is applied to the voice port where the
!– call comes in to the router. When a call comes in from the
!– telephone network towards the router, the called number
!– is translated before it is matched on any dial peers.
!
dial-peer voice 100 voip destination-pattern 101100..
session target ipv4:main site IP address ip precedence 5
dtmf-relay h245-alphanumeric
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642-432
!
!– The VoIP dial peer needs to be configured to match on the new numbering plan
This output was captured from the NewDelhi router which shows the translation rules applied while dialing from the NewDelhi site.
NewDelhi- Output
!– It is possible to confirm the translation rules are working:!!NewDelhi#test translation-rule 1 99!– Original called number is “99″The replaced number:
10110099!– Translated to 8 digits
QUESTION 3:
What is the optimal end-to-end delay that should be achieved in a VoIP network? A. 20 ms
B. 100 ms
C. 150 ms
D. 400 ms
Answer: C Explanation:
Delay Specifications
QUESTION 4:
Which three are supervisory signals? (Choose three) A. busy
B. on hook
C. off hook
D. call waiting
Exam 642-432: Cisco Voice Over IP Exam (CVOICE)
Related Certifications: CCVP, IP Communications Specialists
Number of Questions: 55-65
Duration: 75 minutes
Exam Topics Include:
Describe the similarities and differences between the PSTN and VoIP
Configure a router so that a basic IP Telephony call can be completed
Troubleshoot a basic IP telephony configuration
Successfully integrate a basic IP telephony network into the existing PSTN network
Converse with traditional TDM support personnel using their terminology
Describe the basic operation and components involved in a VoIP call
Successfully connect a basic VoIP network to the PSTN
The Cisco Voice over IP 642-432 CVOICE exam is associated with the Cisco Certified Voice Professional certification, as well as the Cisco IP Communication Support Specialist and Cisco Rich Media Communications Specialist certifications. This exam assesses a candidate’s knowledge of how to implement and support data and voice integration solutions at the network-access level. Topics covered include basic IP Telephony operation, router configuration, support for VOIP networks, troubleshooting, and integration with the PSTN network.
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