Digital Media Exam

Which of the following factors will increase the file size of a digital image? a. larger pixel dimensions of the image b. collect few samples c. less bit depth d. smaller sampling rate

A. larger pixel dimensions of the image

Which of the following can be added as attribute to the tag? style, href, src, all of the above

All of the above

HTML stands for_____.

Hypertext Markup Language

Which one is lossy compression technique? TIFF, GIF, PNG, JPEG

JPEG

Which of the following is not a compression method for videos? Spatial, Temporal, Lossy and Lossless, or Logrithmic

Logrithmic

_____ compression refers to the type of compression method that discards the original data.

Lossy

Google maps is an example of Cloud computing services. True or False?

True

In temporal compression, we store only the difference from key frame instead of whole frame in videos. True or False?

True

Internet is a physical network while web is the logical interface through which one can access the resources located over internet. True or False?

True

Loudness and the Sound Intensity both refer to amplitude of the sound wave, however loudness is a subjective term while sound intensity is an objective term. True or False?

True

One can use a simple text editor (e.g. notepad or text edit) can be used to create HTML documents. True or False?

True

The basic idea of compression is to represent same content with less data. True or False?

True

Unicodes are typically used to encode multilingual data. True or false?

True

Digitization means converting ______ into _______.

analog; digital

The word bit comes from the shortening of the words ____ _____.

binary digit

In digital audio, higher resolution means higher ____.

bit depth

The ____ of a digitized sound affects the accuracy of the sampled amplitudes being stored.

bit depth

What is another term for quantization?

bit depth

What refers to the number of allowable levels of digitized data?

bit depth

What can reduce file size of digital media?

decrease sampling rate, decrease bit depth, and apply compression

In an audio signal, the reducing the number of hcannels from 2(stereo) to 1 (mono) will...

decrease the file size by half

Reducing the sampling rate from 44,100 Hz to 22,050 Hz will...

decrease the file size by half

The broadcast standard mainly involves frame rate, color spaces, and _______.

digital video resolution

Video is basically a "moving sequence of _____"

frames

A sound with higher ___ is perceived to have a higher pitch.

frequency

The unit for measuring _____ is Hertz (Hz).

frequency

Which of the primaries in the HSB color model takes the form of a color wheel?

hue

What are the primaries in the HSB color model?

hue, saturation, brightness

Progressive scan displays the frame by scanning the lines of a frame____.

in one pass from top to bottom

If a digital image captured at a higher resolution, it will have ____ than a low resolution image.

larger pixel dimensions

Is MP3 lossy or lossless?

lossy

In the quanitzation step, to capture an analog image to a digital image...

mapping of infinite colors into finite set colors

Vector graphics are composed of ___.

mathematical descriptions of image elements, which include points, lines, curves, and shapes

The vertical axis of a sound waveform is ____.

pressure

A waveform is a graphical representation of the ____ fluctuations of a sound wave.

pressure-time

How does the file change if the bit depth of an image is increased from 8-bit to 24-bit?

tripled

Nyquist criterion, the sampling rate of the audio must be at least ____ of the audio frequency.

twice

Special codes that tell the Web browser how to display the text surrounded by < > are ____.

tags

______ compression refers to the type of compression method that exploits the similarity of the subsequent frame content.

temporal

HTML documents are mainly _____.

text files

Application programs such as Firefox, Internet Explorer, Safari, Chrome, and Opera, which converts the HTML code into GUI/understandable format are called _____.

web browsers

https://www.schoolname.edu/departments/art/index.html The domain name of the web server is _____.

www.schoolname.edu

_____ is the video standard created by Intel and can run on both Windows and MAC-OS.

.avi

______ is the video file type created by Apple Inc. and compatible with both windows and MAC-OS.

.mov

Which file type is specifically designed for browsers (HTML5) by Motion Pictures Expert Group?

.mp4

If you are editing a video which will be mapped onto DVD or Blu-Ray, which file type of video format?

.mpeg4

The pixel aspect ratio of a standard format of a standard definition video is ____.

0.9

If you want to encode only 2 colors, what is the minimum number of bit(s) you need?

1

The pixel aspect ratio of a high defintion video 1920 * 1080 is _____.

1

Which of the following sizes is the largest one? 250 GB, 1 TB, 250 KB, 900 MB

1 TB

The pixel aspect ratio of a wide-screen format standard definition video is ____.

1.2

Convert this decimal value (base-10) 194 into binary (base-2).

11000010

Convert this decimal value (base-10) 99 into binary (base-2).

1100011

The frame size of a high definition video 720i or 720p is _____.

1280 * 720 pixels

4-bit image allows how many colors?

16

The frame aspect ratio of a wide-screen format standard definition video is _____.

16:9

If an audio signal falls within the frequency range (3,000 Hz to 10000 Hz) then lowest sampling rate that satisfies the Nyquist?

20,000 Hz

PAL specifies the _____ FPS for digital TV.

25

In ASCII encoding, the size of each character is of 8-bits. Then how many different dcharacters can be encoded using ASCII encoding?

256

Most grayscale images use 8-bit color. This means there can be _____ possible different gray tones in the image.

256

_______ represents the doubling the sound intensity.

3 dB

NTSC specifies the ______ FPS for black and white TV.

30 FPS

How many levels of amplitude values does a 5-bit sound allow?

32

Convert the binary (base-2) value 100111 into decimal (base-10).

39

NTSC specifies _____ horizontal lines for CRT monitor/TV.

525

If pizel dimension is 3000x1500 & bit depth is 16 bits, what will the file size (bytes) be?

9 MB

Which of the tag is usually used to add blank line/space?

<br>

Which tag doesnt need any closing tag?

<br>

To add a paragraph _______ tag can be added in HTML code.

<p>

TIFF is the propriety of

Adobe

CSS stands for ________.

Cascading Style Sheets

Zero decibel is when there is absence of sound or no sound wave. True or false?

False

XHTML stands for ____.

Extensible Hypertext Markup Language

Image file size = (no. of pixels/frame) x (no. of bits/pixel) x (duration of video) x (________)?

FPS

A website can be created without adding a <body> tag. True or False?

False

If the sound intensity is 120 dB then it may cause hearing problems. True or False?

False

If we increase the sampling rate then the resolution of the audio will also improve True or False?

False

There is no sampling and quantization involved in capturing motion in digital video. True or False?

False

Users can use virtual computers over the cloud and can install different programs on virtual computers is an example of ____ cloud computing model.

Infrastructure as a Service

A scripting language for Web pages is called _____.

JavaScript.

For audio file size = (sampling rate) x (no. of bits/sample) x (duration) x (______)?

No. of channels

Which of the following color models take(s) the form of a color cube? RGB, HSB, CMYK, CIE

RGB

What is the color mixing method for the RGB color model?

additive

When we magnify the computer screen, lines that should be straight lines appear to be jagged because of...

aliasing

Video file size depends on file size of pictures and file size of _____.

audio

Codec stands for:

compressor and decompressor

Digital data is _____ and analog information is _____.

discrete; continuous

If we double the pixels of an image, then the file size will be...

doubled

The main advantage of bitmapped images over vector graphics is...

ease of editing the image content pixel by pixel

The comb-like artifact in a digital video, as shown here, occurs in the _____ video

interlaced

The scan mode of a CRT television set is _____.

interlaced

If a digital image has a higher bit depth, it will have _____ than with lower bit depth.

more different colors

If bit depth is 16 bit and the sampling rate is 44,100 Hz then number of bits in 60 sec music file? 10,444,000 bits, 56,808,000 bits, 42,336,000 bits, none of these.

none of these

The ____ of a sound related to the sound intensity or loudness. bit depth, frequency, amplitude, or none of these?

none of these

Frame is the combination of ____ & ______.

pictures, audio

What are the primary colors in the RGB color model?

red, green, blue

The main advantage of vector graphics over bitmapped images is...

requires less storage space

The frame size of a video refers to the video's ____.

resolution

Measuring the puppy's weight weekly is the example of:

sampling

In digital audio, the number of sample points taken per second is called ____.

sampling rate

Converting the analog information into digital mainly involves two steps: _____ and ____.

sampling; quantization

Which of the following types of video can be compressed the most with temporal compression? fast action or slow continuous motion

slow continuous motion

______ is a wave which is generated by the vibrating objects in a medium.

sound

______ compression refers to the type of compression method that aims at compacting individual frames.

spatial

In converting an analog image to a digital image, the sampling rate affects _______.

the pixel dimensions of the resulting digital image

In ____ computing model, DND/CD are used to share the file while in _____ computing model internet is used to exchange/share the file.

traditional desktop; cloud