Information Technology Reference
In-Depth Information
27.
Which codec is recommended for use in WAN links?
a.
G.711
b.
G.723
c.
G.726
d.
G.729
28.
Which technology reduces the amount of bandwidth used? (Select all that apply.)
a.
QoS
b.
LFI
c.
cRTP
d.
VA D
29.
Which of the following statements is true?
a.
CAC prevents voice calls from affecting other voice calls.
b.
CAC prevents voice calls from affecting data bandwidth.
c.
CAC prevents data from affecting voice calls.
d.
CAC prevents data from affecting other data traffic.
30.
What IPT component contains the dial plan and is used to register IP phones?
a.
Gateway
b.
Unity server
c.
Gatekeeper
d.
Cisco Unified CallManager
31.
Which are drivers for Unified Communications?
a.
Better quality
b.
Reduce WAN costs
c.
Flexibility to carry data, voice and video
d.
Efficient integration with legacy PSTN infrastructure
e.
Improvement of QoS on the network
32.
Match the H.323 component with its description.
a.
Gateway
b.
Gatekeeper
c.
MCU
d.
Te r m i n a l
