Deck 14: Multimedia Networking

Question 1

The problems associated with networked video are worse for networked audio.

Answer 1

False

Question 2

In order to play audio and video clips downloaded off the network,it is necessary to have the proper ____ installed.

A)CODERs
B)CODECs
C)DECs
D)CODs

Answer 2

B

Question 3

A Web page with one hundred images will require much longer to download and display if all the images are GIF instead of JPG.

Answer 3

False

Question 4

An experimental multicasting backbone,called ____,supports multicasting over the Internet.

A)CBone
B)MCastBone
C)Internet2
D)MBone

Question 5

The ____ credentials provide authenticated access between the VoIP service provider and the local VoIP capable device.

A)NAS
B)SIP
C)SIL
D)SIB

Question 6

____________________ is a method for sending voice and fax data using the IP protocol.

Question 7

The ____ file is the standard audio file format used by Windows.

A)AAC
B)MIDI
C)MP3
D)WAV

Question 8

GIF is the best format for high-quality images.

Question 9

MPEG video compression is ____.

A)lossy
B)lossless
C)conservative
D)expensive

Question 10

When displaying a transparent GIF image in a browser,the browser's ____ pixel color will be used for any transparent pixels.

A)background
B)foreground
C)default
D)GIF

Question 11

A video file must be played with the same ____________________ used to create the video file.

Question 12

____________________ refers to the combination of audio,image,video,animation,and text into a single presentation experience.

Question 13

____ specify a value between 0 (full transparency)and 255 (no transparency)to provide the transparency of a pixel in the PNG format.

A)Beta channels
B)Omega channels
C)Alpha channels
D)Delta channels

Question 14

Web browsers accept three different types of image files: ____.

A)HTM images,JPEG images,and PNG images
B)GIF images,JPEG images,and TIF images
C)TIF images,JPEG images,and PNG images
D)GIF images,JPEG images,and PNG images

Question 15

When a GIF image is being displayed,any pixels whose color is the ____________________ color will cause the background to show through.

Question 16

Since each pixel in a GIF image can be one of 256 colors,____ are needed to store the color for a pixel.

A)four bits
B)eight bits
C)ten bits
D)24 bits

Question 17

A(n)______________________________ customer purchases the VoIP product of their choice,and simply enables it to work on the ViaTalk network using the ViaTalk SIP credentials.

Question 18

Animation in a GIF image is accomplished by storing all of the animation images in a single GIF image file,with appropriate time delays inserted between the display of each stored image,one after another.

Question 19

To reduce the required bandwidth,MPEG utilizes motion ____ that identify movement of blocks of pixels between frames.

A)volumes
B)pixels
C)vectors
D)blocks

Question 20

Some of the original image information is thrown away during the lossy compression process.

Question 21

List the features of GIF images.

Question 22

MATCHING
Match each item with a statement below.
a.Lossy compression
d.Lossless compression
b.IGMP
e.MPEG
c.CODEC
Specifies the methods used to encode CD-quality audio in a compressed format

Question 23

MATCHING
Match each item with a statement below.
a.Lossy compression
d.Lossless compression
b.IGMP
e.MPEG
c.CODEC
The algorithm used to sample,digitize,and recreate the video (and audio)stream

Question 24

What is a CODEC and why is it important?

Question 25

List and describe the three types of frames that MPEG video is processed in.

Question 26

MATCHING
Match each item with a statement below.
a.Lossy compression
d.Lossless compression
b.IGMP
e.MPEG
c.CODEC
Makes IP multicasting possible

Question 27

List the features of a JPG image.

Question 28

MATCHING
Match each item with a statement below.
a.Lossy compression
d.Lossless compression
b.IGMP
e.MPEG
c.CODEC
Provides better compression,in general,with little noticeable effect on image quality

Question 29

Discuss why VoIP service in the residential and business community is becoming more common.

Question 30

MATCHING
Match each item with a statement below.
a.Lossy compression
d.Lossless compression
b.IGMP
e.MPEG
c.CODEC
None of the original image data is lost during compression