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Devry NETW 320 Final Exam 2014- Identify the merger of legacy-based TDM architecture

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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 convergence;Question 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 counts;Question 3. 3. (TCO 2) Construct a 1.536 Mbps T1 link. (Points: 5);24 Channels;32 Channels;Fractional Channels;CAS;Question 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, mixed;Question 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 route;Question 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.735;Question 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 power;1. (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;802.4ab;Question 2. 2. (TCO 6) Identify the IEEE specifications that will support QoS on WLAN. (Points: 5);IEEE802.11e;IEEE802.11a;IEEE802.11b;IEEE802.11g;Question 3. 3. (TCO 6) Identify a very weak encryption system that is sometimes used in wireless networks.;(Points: 5);WAP;TKIP;WEP;AES;Question 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 2004;Question 5. 5. (TCO 7) What protocol is commonly used to allow integration between the softphone and the;corporate directory? (Points: 5);LDPD;LPAD;LAPD;LDAP;Question 6. 6. (TCO 8) What do we call frames that are implemented with 802.1p? (Points: 5);Switched frames;Tagged frames;LAN frames;Untagged frames;Question 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 ms;Question 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;RTP;Question 10. 10. (TCO 5) TKIP provides a ______solution to the problems found in WEP. (Points: 5);worse;add-on;interim;permanent;1. (TCO 1) Explain five different common applications for unified messaging. (Points: 30);Question 2. 2. (TCO 2) Describe the purpose of a Multipoint Conferencing Unit (MCU). (Points: 30);Question 3. 3. (TCO 7) Describe jitter in a network. (Points: 30);Question 4. 4. (TCO 8) Explain the function of communications protocols. (Points: 30);Question 5. 5. (TCO 9) Explain the DiffServ objective. (Points: 30)

 

Paper#31386 | Written in 18-Jul-2015

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