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Cisco 642-432 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Cisco Unified Communications Architecture | - CUCM (Cisco Unified Communications Manager) fundamentals
|
| Topic 2: Voice Gateway and Protocol Integration | - VoIP signaling protocols
|
| Topic 3: Call Control and Survivability | - Redundancy and high availability
|
| Topic 4: IP Phone Deployment and Features | - Advanced telephony features
|
| Topic 5: Quality of Service (QoS) for Voice | - Voice traffic prioritization
|
Cisco Voice Over IP Sample Questions:
1. Which type of delay is caused when large data packets block voice packets from the outbound interface?
A) propagation delay
B) queuing delay
C) serialization delay
D) packetization delay
2. Examine the example output.
hostname GW1 ! interface Ethernet 0/0 ip address 172.16.2.1 255.255.255.0 h323-gateway voip interface h323-gateway voip id GK1-zone1.abc.com abc.com ipaddr 172.16.2.2 h323-gateway voip h323-id GW1 h323-gateway voip bind srcaddr 172.16.2.1 ! dial-peer voice 1 voip destination-pattern 1212. session-target ras ! dial-peer voice 2 pots destination-pattern 2125551212 no register e164 !
end
Choose the command that will restore communication with gatekeeper functionality to this device.
A) gateway
B) h323-gateway voip GW1-zone2.abc.com abc.com ipaddr 172.16.2.1
C) h323-gateway voip bind srcaddr 172.16.2.2
D) h323-gateway voip h323-id GK1
3. You are working with a potential customer that would like to integrate its existing PBX telephone system into its IP network. The accompanying figure shows that the customer has two offices that need to be connected to the IP network so that the customer can exchange telephone calls without using the PSTN. Both PBXs use Wink-Start signaling.
Which signaling type will allow you to support the customer?
A) T-CCS
B) CCS
C) E&M
D) QSIG
E) FXO
F) CAS
4. Refer to the exhibit. Your customer wants to converge voice and data on the existing T1 Frame Relay WAN link between New York and Atlanta. The customer has allocated 25 percent of the WAN link for routing updates and other overhead. You are using 6 bytes of overhead for Frame Relay, no cRTP, and the G.729 codec.
How many calls could be placed on this link?
A) four
B) five
C) six
D) three
E) two
F) seven
5. The following are the original dial peer configurations for routers R1 and R2:
R1: dial-peer voice 20 voip destination-pattern 408....... session target ipv4:192.168.2.254 !
R2: dial-peer voice 21 pots destination-pattern 4085554321 port 1/0/1 !
Which phones can call to the other?
A) Only Phone B can call Phone A.
B) Only Phone A can call Phone B.
C) Both phones can call each other.
D) Neither phone can call the other.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: B |
