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Devry NETW 320 Final exam

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Question;Question 1. 1. (TCO 1) Identify the merger of legacy-based TDM architecture with packet-switching technology and call-control intelligence. (Points: 5) Telecommunication convergence Analog convergence Digital convergence DSL and cable telecommunication convergenceQuestion 2. 2. (TCO 1) Choose the mechanism(s) for sending RAS messages using RAS channel over UDP. (Points: 5) Retry counts Timeout Timeout and retry counts Timeout, TTL, and retry countsQuestion 3. 3. (TCO 2) Construct a 1.536 Mbps T1 link. (Points: 5) 24 Channels 32 Channels Fractional Channels CASQuestion 4. 4. (TCO 2) Identify how IP telephones access their media controllers. (Points: 5) IP telephones access their media controllers through a hub. IP telephones access their media controllers through a bridge. IP telephones access their media controllers through a switched bridge. IP telephones access their media controllers through a switched IP connection.Question 5. 5. (TCO 3) An MCU may control three different conference types, please identify them. (Points: 5) Centralized, decentralized, mobile Mobile, centralized, decentralized Centralized, mobile, decentralized Centralized, decentralized, mixedQuestion 6. 6. (TCO 3) Identify the cause of packet delay. (Points: 5) It is not the time it takes a packet to traverse the network. It is the time it takes a packet to traverse a router. It is the time it takes a packet to traverse the network. It is the time it takes a packet to traverse a switch.Question 7. 7. (TCO 4) Which of the following characteristics are not common to circuit-switched networks? (Points: 5) Store and forward transmission Dedicated bandwidth Potentially wasted bandwidth Each packet follows the same routeQuestion 8. 8. (TCO 4) Explain why G.711 is used in LANs. (Points: 5) There is quite a bit of bandwidth in a LAN and it is not expensive. There is not much bandwidth in a LAN and it is not expensive. There is quite a bit of bandwidth in a LAN and it is expensive. There is not much bandwidth in a LAN and it is expensive.Question 9. 9. (TCO 4) Select the codec that is most appropriate for limited bandwidth WANs. (Points: 5) G.711 G.741 G.729 G.735Question 10. 10. (TCO 5) Describe the three main ways of powering an IP telephone. (Points: 5) Local power, powered AC patch panels, inline power Local AC power, powered patch panels, inline power Local power, powered patch panels, online power Local power, powered patch panels, inline power1. (TCO 5) Select the IEEE standard that defines the application of power to IP telephones through the UTP wiring. (Points: 5) 802.3af 802.11 802.13 802.4abQuestion 2. 2. (TCO 6) Identify the IEEE specifications that will support QoS on WLAN. (Points: 5) IEEE802.11e IEEE802.11a IEEE802.11b IEEE802.11gQuestion 3. 3. (TCO 6) Identify a very weak encryption system that is sometimes used in wireless networks. (Points: 5) WAP TKIP WEP AESQuestion 4. 4. (TCO 7) Identify the document that specifies the requirements for mobile node to use two IP addresses. (Points: 5) RFC 2001 RFC 2003 RFC 2002 RFC 2004Question 5. 5. (TCO 7) What protocol is commonly used to allow integration between the softphone and the corporate directory? (Points: 5) LDPD LPAD LAPD LDAPQuestion 6. 6. (TCO 8) What do we call frames that are implemented with 802.1p? (Points: 5) Switched frames Tagged frames LAN frames Untagged framesQuestion 7. 7. (TCO 8) What is the maximum delay that is considered acceptable for voice traffic? (Points: 5) 250 ms 300 ms 100 ms 150 msQuestion 8. 8. (TCO 9) Identify the function of an SIP User Agent. (Points: 5) An SIP User Agent places calls using IP address or e-mail-like addressing. An SIP User Agent places calls using E.164 or IP address. An SIP User Agent places calls using neither E.164 nor e-mail-like addressing. An SIP User Agent places calls using E.164 or e-mail-like style.Question 9. 9. (TCO 3) SNMP uses the ______ protocol to the Transport Layer. (Points: 5) TCP UDP MIB RTPQuestion 10. 10. (TCO 5) TKIP provides a ______solution to the problems found in WEP. (Points: 5) worse add-on interim permanent Question 1. (TCO 1) Explain five different common applications for unified messaging. (Points: 30) Question 2. (TCO 2) Describe the purpose of a Multipoint Conferencing Unit (MCU). (Points: 30) Question 3. (TCO 7) Describe jitter in a network. (Points: 30) Question 4. (TCO 8) Explain the function of communications protocols. (Points: 30) Question 5. (TCO 9) Explain the DiffServ objective. (Points: 30)

 

Paper#36767 | Written in 18-Jul-2015

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