QUESTION 141
Company CADORNA’s INC. is planning a deployment of Cisco IP Telephony using the Centralized Call Processing model. The company has 1 HQ and 25 branches in a hub and spoke configuration. The company policies determine that multicast traffic should not be carried over the WAN. Which of the following statements would not violate the company policies while successfully implementing Music on Hold throughout all the different sites? (Choose 3)
A. Use Multicast flows throughout the network, filtering Multicast flows in the WAN edge, and stream
MoH streams from the flash of the branches’ routers
B. Use Multicast flows in the HQ and Unicast flows in the branches
C. Use Unicast MoH throughout the network
D. Use the AMOHB (Advanced Music on Hold for Branches) feature in Cisco CallManager
E. Use MoH directly generated from the IP Phones in the Branches
Answer: ABC
QUESTION 142
Which of the following steps will not fit into Extension Mobility(EM) service login or logout flow on Cisco CallManager 4.X and IP Phones ? (Choose 2)
A. A device profile needs to be created and assigned with Extension Mobility user in the CallManager
B. Extension Mobility IP Phone Service URL is created for both Extension Mobility login and for Extension
Mobility logout.
C. The EM user is associated with one of the device profiles.
D. The EM user selects the EM Service on the IP phone.
E. If EM user has more than one device profile associated with him, he is prompted to select the profile
he wants to log in with.
F. The EM user’s profile is loaded on the phone without the phone breaking its TCP connection with
CallManager.
Answer: BF
QUESTION 143
Which of the following CallManager 4.1(2) Applications require JTAPI support?
A. CallBack
B. CTI Route Point
C. iDivert
D. ConfList
Answer: C
QUESTION 144
A DPA 7630 is being used to integrate a CallManager cluster with an Octel voicemail system. What is configured in the CallManager cluster to establish call paths to the DPA 7630?
A. A 7902 IP phone is configured for each call path.
B. A VIP 30 IP phone is configured for each call path.
C. A CTI port is configured for each call path.
D. A CTI route point is added with a DN for each call path.
E. A voicemail port is added for each call path.
Answer: B
QUESTION 145
Which of the following does NOT accurately describe the Device Pool function in CM?
A. The Device Pool allows to add Call Manager group to a device.
B. The Device Pool allows Registration preferences to a phone or gateway.
C. The Device pool allows Location preferences to a phone or gateway.
D. The Device pool allows Failover preferences to a phone or gateway.
E. The Device pool allows SRST Reference to a phone or gateway.
Answer: C
QUESTION 146
What occurs if the system clocks are not synchronized between the sender and receiver of an RTP stream?
A. Packets can be placed in sequence but jitter cannot be compensated for.
B. Packets cannot be reordered, because sequence and jitter cannot be compensated for.
C. Jitter can be compensated for, but packets cannot be reordered if they arrive out of sequence.
D. Packets may be reordered and jitter may be compensated for, because the timestamp is not related
to the system time.
E. When the RTP stream is opened, the sender and receiver synchronize their clocks before the stream
commences so that packet sequencing and dejitter will function correctly.
Answer: D
QUESTION 147
If all n MTP transcoding sessions are utilized, and an n + 1 connection is attempted, how will the next call be treated?
A. it will not use an MTP and will use the transcoding resources associated with the codec to
complete the call
B. it will be redirected to the PSTN due to a lack of MTP resources
C. it will use the alternate codec type and attempt to complete the call
D. it will complete the call without using the MTP transcoding resource
Answer: D
QUESTION 148
A centralized call processing topology comprises a headquarters and a branch office. Calls within both the headquarters and the branch office utilize the G.711 codec. Calls between the headquarters and the branch office utilize the G.729 codec. Multicast MoH must always be transmitted using the G.711 codec.
Which of the following configurations would meet this requirement?
A. A total of two regions are required for all sites with G.729 codec specified between the two
regions; G.711 codec is used within regions. The MoH server should belong to the headquarters
region.
B. A total of two regions are required for all sites with G.729 codec between the two regions; G.711
codec is used within regions. The Cisco IP Voice Media Streaming App needs to be configured for
G.711 codec only.
C. A total of two regions are required for all sites with G.729 codec between the two regions; G.711
codec is used within regions. The MoH server is placed in a separate location with the G.711 codec
utilized between itself and each office.
D. The MoH server cannot be configured to transmit G.711 because the phones are negotiating G.729
codec during call setup.
E. Three separate regions are required: one for the headquarters, one for the branch office, and one
for the MoH server. Codecs between and within each region are specified accordingly.
Answer: E
QUESTION 149
On a WAN PPP link, what is the required bandwidth for three G.729 VoIP calls when cRTP is turned off, and what is it when cRTP is turned on? (Note The payload size is 20 bytes.)
A. cRTP off: 72.6 kb/s; cRTP on: 24.6 kb/s
B. cRTP off: 90 kb/s; cRTP on: 36 kb/s
C. cRTP off: 79.2 kb/s; cRTP on: 33.6 kb/s
D. cRTP off: 26.4 kb/s; cRTP on: 11.2 kb/s
E. cRTP off: 48 kb/s; cRTP on: 24 kb/s
Answer: C
QUESTION 150
Approximately what percentage of overall bandwidth is saved (at Layer 3) by cRTP for a G.711 VoIP call packetized at 50 p/s?
A. 60 percent
B. 50 percent
C. 40 percent
D. 30 percent
E. 20 percent
Answer: E
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