
H446|U4|T1 Compression, Encryption, and Hashing
Quiz
•
Computers
•
11th Grade
•
Practice Problem
•
Easy
Wayne Vaughan
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of compression permanently removes non-essential data?
Lossless
Lossy
Run Length Encoding
Dictionary-based
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which compression method is best suited for text files?
Lossy
Lossless
JPG
MP3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does RLE stand for?
Run Length Encoding
Real Lossless Encryption
Random Length Extension
Redundant Lossy Encoding
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In RLE, how is repeated data represented?
By storing each instance of the data
By removing the repeated data
By storing one example and the number of repetitions
By encrypting the repeated data
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dictionary-based compression stores frequently occurring data in a:
Hash table
Array
Dictionary
Queue
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of encryption?
To reduce file size
To ensure data integrity
To make data unreadable without the correct key
To speed up data transfer
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In encryption, the original message is called:
Ciphertext
Key
Plaintext
Hash
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