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Devry NETW320 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 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#36373 | Written in 18-Jul-2015

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