Chapter 3 Network Support Systems

Question 1

NAME 3 ADVANTAGES OF IMPLEMENTING VOIP?

Answer 1

1 .Cost savings resulting from
fewer telecommunications
circuits
2. Toll-free calling
3.Simplified management of a
single converged network for
voice and data applications

Question 2

DEFINE UNIFIED COMMUNICATIONS?

Answer 2

THE CONVERGANCE OF VOIP TECHNOLOGY WITH SOFTPHONE, PTP VIDEO COMMUNICATIONS, INSANT MESSAGING (CHAT) SERVICES, AND PRESENCE (REAL-TIME STAUS INDICATORS)

Question 3

WHY MIGHT UC ALLOW FOR FEWER COPPER PAIRS TO BE PROVIDED TO A BUILDING?

Answer 3

BECAUSE THE MAJORTY OF THE VOICE CONNECTIVITY RUNS OVER THE DATA NETWORK.

Question 4

Why might some traditional
analog lines need to remain
in a building when a UC
solution is implemented?

Answer 4

To accommodate fax lines,
elevator phones, or
other utility lines

Question 5

What does real-time
describe when it is applied
to video communications?

Answer 5

The capture and transfer of
video from its source to the
viewer’s screen with
minimal delay

Question 6

What does stored-and-
forward describe when
it is applied to video
communications?

Answer 6

The process where video is
stored for future playback

Question 7

NAME 2 CRITERIA FOR CLASSIFIYING VIDEO SERVICES?

Answer 7

1 .Number of stations
simultaneously receiving the
same video content from the
sending device, which can be
P TP or point-to-multipoint
2.Direction of transfer of the
video content, unidirectional or
bidirectional

Question 8

NAME 4 TYPES OF VIDEO COMMUNICATIONS?

Answer 8

1. PTP UNIDIRECTION
2. PTP BIDIRECTIONAL
3. POINT-TO-MULTIPOINT UNIDIRECTIONAL
4. POINT-TO-MULTIPOINT BIDIRECTIONAL

Question 9

What type of network video
communications transfers
content in one direction
and uses one station to
receive the content?

Answer 9

POINT-TO-POINT UNIDIRECTION

Question 10

What type of network video
communications transfers
content in two directions
and uses one station to
receive the content?

Answer 10

POINT-TO-POINT BIDIRECTIONAL

Question 11

What type of network video
communications transfers
content in one direction
and uses more than one
station to receive
the content?

Answer 11

POINT-TO-MULTIPOINT UNIDIRECTIONAL

Question 12

What type of network video
communications transfers
content in two directions
and uses more than one
station to receive
the content?

Answer 12

POINT-TO-MULTIPOINT BIDIRECTIONAL

Question 13

What type of network video
communications is used to
send an image via
webcam?

Answer 13

POINT-TO-POINT UNIDIRECTION

Question 14

What type of network video
communications is used
for webcasting?

Answer 14

POINT-TO-MULTIPOINT UNIDIRECTIONAL

Question 15

What type of network video
communications is used
for multiplayer gaming?

Answer 15

POINT-TO-MULTIPOINT BIDIRECTIONAL

Question 16

Why is videoconferencing
the most demanding
network application from a
resource perspective?

Answer 16

Because it requires a constant
minimum data transfer rate
between stations