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WorksheetsText and Image representation
Total questions: 22
Worksheet time: 11mins
Why do we need to encode all data in binary.
Because binary is very small
Because computers only understand binary
Because binary is very fast
Because binary is space efficient
A defined list of characters & symbols with associated binary codes are called..
Storage data
Numerical configuration
Character sets
Number sets
2 examples of character sets are
CSCII
ASCI
ASCII
UNICODE
How can character encoding issues arise?
When software tries to decode text using a different character set
When software tries to decode text using the right character set
When character sets are too fast
When character sets are too big
What happens when software tries to encode with the wrong character set?
Hardware conflict
System update crash
Slow system
Encoding issues can arise
What is the full meaning of ASCII ?
Advanced Standard Code for Information Interchange
American Standard Code for Information Interchange
American Standard Code for Internet Interchange
Advance Set Code for Information Interchange
ASCII is a 7 bit character set
True
False
ASCII allows for a maximum of how many different characters?
128
256
64
32
One main problem with ASCII is ...
Has only big letters and alphabets for all languages
Has too many letters and alphabets for all languages
Has no letters and alphabets for all languages
No problem
Which character set allows for the encoding of every character and symbol for every language in the world
SCII
ASCII
UNICODE
UTFCODE
What is the full meaning of UNICODE?
Unique, Universal, and Uniform character encoding
Universal Transformation Format Code
Universal, and Uniform character encoder
Unique, Universal, and Uniform encoder
What is the full meaning of UTF
Unicode Transformation Format
Universal Transformation Format
Unicode Transit Format
Unit Transformation Formation
UNICODE can use between 8 and ____ bits per character.
16
12
18
32
What character set is most commonly used on the web?
8
16
32
64
What UNICODE character set is backward compatible with ASCII?
UTF-4
UTF-12
UTF-8
UTF-16
Which of the following is a fixed-width 32 bit encoding scheme
UTF-32
UTF-16
UTF-34
UTF-36
What does Variable width mean?
Character sets that have variables
space cannot be saved for storing many of the characters
Space can be saved for storing many of the characters
Character sets that do not have variables
What is a Pixel?
An individual dot of colour
Letters
Numbers
Unicode
Bitmap images are also known as ...
Piks
Network
Circles
Raster images
The colour of each pixel is represented using what?
Unicode
A binary number.
Pixel
UTF
A black & white image would use how many pixels
4
3
2
1
Images use how many bits?
24
12
8
32
