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Exam : Cisco 646-223
Title : Unified Communications Express AM


1. Telecommunications manager: "I have heard that the speech quality of VoIP is poor. I think I would rather wait until the technology has really been tested."
What is the most appropriate response to the telecommunications manager objection to deploying a Cisco Unified Communications solution?
Select the best response.
A. VoIP is already a proven technology and the speech quality would be as good as, if not better than, a traditional phone system.
B. Cisco Unified Communications is an enhancement of VoIP, so it offers better quality.
C. Today, there is enough bandwidth in the Internet, so QoS for speech would be guaranteed.
D. Policies applied to traffic on a Cisco Unified Communications network are set to give a higher priority to voice packets than to data packets, which guarantees that speech quality is as good as, if not better than, a traditional phone system.
Answer: D

2. Voice traffic has strict requirements concerning packet loss, delay, and delay variation (jitter), which enable a solution for delivering high-quality voice on an IP network.
Which individual would most likely be the key decision-maker of QoS implementations?
Select the best response.
A. key manager
B. financial manager
C. telecommunications manager
D. system administrator
Answer: D

3. Which three benefits describe how a converged network solution can leverage the existing infrastructure of an SMB customer? (Choose three.)
Select 3 response(s).
A. A converged network is easier to manage.
B. Converged networks offer new capabilities and applications.
C. A converged network does not need a gateway to the PSTN anymore.
D. Converged networks are often proprietary, closed systems.
E. A converged network is less expensive to build and operate.
F. Converged networks use dedicated lines for voice, video, and data.
Answer: ABE

4. Which two advantages of security implementations in Cisco Unified Communications Express solutions are true? (Choose two.)
Select 2 response(s).
A. The Cisco 1861 ISR provides built-in security with hardware encryption and decryption.
B. Voice clients are critical elements in the Cisco Self-Defending Network, which integrates security throughout all aspects of the network.
C. Cisco Unified IP phones provide XML capabilities to extend security functions on a phone.
D. Cisco Unified Communications Manager Express is running on Linux to protect against vulnerabilities and attacks.
E. Cisco Unified Communications Manager tools monitor the converged network to detect security attacks.
Answer: AB

5. Which of these is not a feature of Cisco Unified CallConnector Mobility?
Select the best response.
A. single-number reach
B. single voice-mail box
C. user-customizable rules for routing
D. integration with legacy PBX systems
E. Reach at Any Phone
F. integration with Presence
Answer: D

6. A system administrator is concerned that Cisco Unified Communications might not conform to industry standards.
Which three responses are the most appropriate to provide? (Choose three.)
Select 3 response(s).
A. Cisco has decided to use their own protocols, such as SCCP, to support enhanced features.
B. Cisco is a progressive company by nature, so there will always be occasions when products and services are developed that break new ground.
C. All standards of IP telephony are currently available only as drafts.
D. Cisco is making and leading the market; therefore many standards are initiated by Cisco.
E. No vendor works conform to standards, so this will not be an issue.
F. Cisco supports open standards such as PoE and SIP.
Answer: BDF

7. A car dealer is interested in implementing Cisco Unified Communications. He explains that his salesmen need to be reachable via phone when they leave their desks, for example, when they go to the garage.
What are the two possible solutions for offering this mobility? (Choose two.)
Select 2 response(s).
A. VoWLAN with Cisco IP Phone 7921
B. Cisco IP Unified Communicator
C. Nokia dual-mode phones
D. Cisco Unified CallConnector for CRM
E. Cisco Unified Video Advantage
Answer: AC

8. How does Cisco ensure security for a Cisco Unified Communications solution?
Select the best response.
A. Cisco uses proprietary protocols that protect against known vulnerabilities, such as virus attacks, service attacks, and hackers.
B. Cisco has a set of design guidelines and software services that, when implemented, will secure the network against known vulnerabilities, such as virus attacks, service attacks, and hackers.
C. A Cisco Unified Communications solution is always more secure than traditional phone systems.
D. Because a Cisco Unified Communications solution is isolated from the data network, it protects against known vulnerabilities, such as virus attacks, service attacks, and hackers.
Answer: B

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