Section C - 3 - Text & Image Representation - Text Represent

Quiz
•
Computers
•
Professional Development
•
Hard
Kiran Jones
Used 3+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What is a character set?
Choose two statements that are true.
It uses 4 bits per character or symbol.
They are a defined list of characters and symbols with associated binary codes.
There are different character sets that your computer can use.
Computers can only use a single character set that is built into the operating system.
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Sometimes when you open a text file, the document displays strange characters.
Which two of the following are possible reasons for this?
It may have tried to decode text that you’ve saved using the wrong character set.
It may be encoded using a font that isn't installed on your device.
It may try and encode with the wrong character set, discarding data that doesn't fit with the character set.
The computers CPU may not be compatible with the character set used to encode the data.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many characters can ASCII represent?
7
128
256
65535
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the issue with ASCII?
It can only represent English characters and symbols.
It uses too many bits per character causing large file sizes.
Not many software programs are compatible with ASCII.
There are no issues with ASCII.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many bits does UNICODE use to encode characters?
8
16
32
All of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A disadvantage of UTF-8 is that it isn’t backwards compatible with ASCII?
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What character set is most commonly used on the web?
ASCII
UTF-8
UTF-16
UTF-32
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is UTF-32 rarely used?
It can only represent 128 characters, which isn't enough for all languages in the world.
It isn't compatible with most software programs.
It uses 32 bits for every character, which causes large file sizes.
It isn't rarely used.
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