Chapter 10 Integrating Voice, Video, and Data

Chapter 10 - Integrating Voice, Video, and Data


TRUE/FALSE

1. NTSC standards are followed worldwide.

ANS: F PTS: 1 REF: 446

2. Digital television can be sent over longer distances than analog while producing a sharper picture.

ANS: T PTS: 1 REF: 447

3. Audio file technologies are far more varied than video technologies.

ANS: T PTS: 1 REF: 451

4. H.225, H.245, and H.450 are examples of codecs defined with the ITU H.323 standard.

ANS: F PTS: 1 REF: 458

5. The higher the bandwidth, the higher the throughput.

ANS: F PTS: 1 REF: 460

6. A multimedia application may be only one of the following types: unicast, broadcast, or multicast; it
cannot be a combination of these types.

ANS: F PTS: 1 REF: 465

7. For some applications that require high bandwidth, network performance is improved by designing the
applications to use multicasts.

ANS: T PTS: 1 REF: 481

8. On a legacy LAN, a significant amount of bandwidth can be gained by replacing old thinnet coax and
repeater runs with Category 5 twisted-pair cable and 100BaseTX switches.

ANS: T PTS: 1 REF: 472

9. Gigabit Ethernet cannot be trunked.

ANS: F PTS: 1 REF: 475


MODIFIED TRUE/FALSE

1. AVI is the technology used with digital television. _________________________

ANS: F, MPEG-2

PTS: 1 REF: 447

, 2. On a computer monitor or digital TV screen, interlaced means that up to 60 frames are sent per second.
_________________________

ANS: F, progressive

PTS: 1 REF: 448

3. Many audio and video technologies use sampling techniques when a signal is converted from analog to
digital. _________________________

ANS: T PTS: 1 REF: 454

4. Microsoft's IP/TV enables interactive conferencing for people at remote locations.
_________________________

ANS: F, NetMeeting

PTS: 1 REF: 456

5. Efficiency is the amount of traffic passing through a given point on a network at a given time.
_________________________

ANS: F, Throughput

PTS: 1 REF: 460

6. Synchronization is most reliable when there is enough throughput for an application so that bits or
frames are not lost or delayed too long by network congestion. _________________________

ANS: F, bandwidth

PTS: 1 REF: 463

7. Unicast multimedia applications are difficult to scale up for increased numbers of users, and if there
are many users, there is high traffic volume and a need for high bandwidth.
_________________________

ANS: T PTS: 1 REF: 466

8. Multicasting on networks that use switches and no routers is entirely dependent on IGMP.
_________________________

ANS: T PTS: 1 REF: 469

9. For many LANs that deploy multimedia applications, one of the most cost-effective design methods
and reliable topologies is to combine Fast Ethernet and Gigabit Ethernet.
_________________________

ANS: T PTS: 1 REF: 474


MULTIPLE CHOICE

1. A television ____ is one full picture in a series of pictures used to simulate action.