What are the two most likely driving forces motivating businesses to integrate voice and data into converged networks? (Choose two.)
A.
Voice networks cannot carry data unless the PRI circuits aggregate the BRI circuits.
B.
Their PSTNs cannot deploy features quickly enough.
C.
Data, voice, and video cannot converge on their current PSTN structures.
D.
Voice has become the primary traffic on networks.
E.
WAN costs can be reduced by migrating to converged networks.
Explanation:
ExplanationVoIP
VoIP provides transport of voice over the IP protocol family. IP makes voice globally available regardless of the data-link protocol in use (Ethernet, ATM, Frame Relay). With VoIP, enterprises do not have to build separate voice and data networks. Integrating voice and data into a single converged network eliminates duplicate infrastructure, management, and costs.Figure 14-7 shows a company that has separate voice and data networks. Phones connect to local PBXs, and the PBXs are connected using TDM trunks. Off-net calls are routed to the PSTN. The data network uses LAN switches connected to WAN routers. The WAN for data uses Frame Relay. Separate operations and management systems are required for these networks. Each system has its corresponding monthly WAN charges and personnel, resulting in additional costs.
With separate voice and data networks,
Figure 14-7 Separate Voice and Data Networks
Cisco Press CCDA 640-864 Official Certification Guide Fourth Edition, Chapter 14
This should be “WAN costs can be reduced by migrating to converged networks” instead of “Voice networks cannot carry data unless the PRI circuits aggregate the BRI circuits.” I have experience with implementing VoIP solutions and one of the main reasons for moving to VoIP is to save on WAN costs. It’s also mentioned in the CCDA 640-864 official Cert Guide on page 532.
I also agree with you.
Fixed.
I agree with CCDACandidate.
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Using VoIP will reduce costs but not WAN costs. to integrate voice and data we will need to raise WAN BW and so it will rais the was costs. I think the correct answers can be B and C.
I thought I was the only person who realized what Saeed said. I agree with him, like if voice and data will run over wan, you will need to increase the wan capacity, so the costs will be higher. You will not have wan costs reduced cause PSTN (where voice ran before) is not part of the wan module in Cisco Enterprise Architecture Model. Correct me if I am wrong.