1.3.1 Compression, Encryption and Hashing
Authored by Matt Hunt
Computers
2nd Grade
Used 14+ times
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32 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Types of compression
Lossy
Lossless
Symmetric
Asymmetric
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Types of encrpytion
Lossy
Lossless
Symmetric
Asymmetric
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Compression
Used to reduce the file size
Allows files to be sent more efficently
Scrambles data into meaningless content unless you have a key
Results in permanent data loss
Requires decompression to reverse process
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
The process uses an _________ to do the actual compression
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compression means that when sending data over a network more bandwidth is required.
TRUE
FALSE
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compression technique that results in a permanent loss of data.
Lossy
Lossless
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Lossy compression
Algorithm removes the least significant data.
The data that was removed is recreated from the data that remains.
Used with sound and image files.
Less effective at reducing file size.
When decompressed the contents are identical to the original.
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