Devry NETW320 Final exam

.png”>

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)