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
