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DeVry NETW 320 Final Exam Latest

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DeVry NETW 320 Final Exam Latest

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DeVry NETW 320 Final Exam Latest

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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)

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