9781423902454_Sol_Ch11 - Network Guide to Networks 5th...

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Network+ Guide to Networks, 5 th Edition Solutions 11– 1 Network+ Guide to Networks, 5 th Edition Chapter 11 Solutions Review Questions 1. You have decided to establish a VoIP system in your home. Which of the following devices is necessary to connect your analog telephone to your VoIP server? a. ATA 2. Skype, the popular Internet telephony service, provides a user with what type of interface? d. Softphone 3. A company’s use of VoIP on its WAN to avoid long distance telephone charges is known as: d. Toll bypass 4. Which of the following is the most popular signaling protocol used on traditional, circuit-switched PSTN connections? a. SS7 5. Watching a YouTube video on the Web is an example of which of the following types of video-over-IP services? c. Streaming video 6. In an IPTV system, which of the following functions does a set top box perform? c. Decodes video signals and issues them to a television 7. What type of video-over-IP service relies on full-duplex communication? b. Videoconferencing 8. What protocol manages addressing for multicast groups? a. IGMP 9. Which of the following protocols would be used by a video bridge to invite a video phone to join a videoconference? c. H.225 10. Suppose your organization’s PSTN and VoIP systems are integrated, and that your VoIP system adheres to architecture specified in H.323. Which of the following performs translation between the PSTN’s signaling protocols and H.323 on your network? b. H.323 gateway
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Network+ Guide to Networks, 5 th Edition Solutions 11– 2 11. You are using Skype to initiate a video call with a friend in another state. Which of the following protocols is generating segments at the Transport layer of this transmission?
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