WorksheetsCiphers - Lesson 1 Retrieval
Total questions: 7
Worksheet time: 2hrs 45mins
Name
Class
Date
1.
What is the term for a message that has been encoded using a cipher?
a)
Encryption
b)
Decryption
c)
Key
d)
I don't know
2.
The process of converting an encrypted message back to plain text is known as?
(a)
3.
The Caesar Cipher is known as what type of cipher?
a)
Substitution
b)
Shift
c)
I don't know
4.
The Polybius square cipher is known as what type of cipher?
a)
Substitution
b)
Shift
c)
I don't know
5.
Analysing the number of times a letter appears in a block of text is known as?
a)
Letter frequency
b)
Frequency analysis
c)
Letter count
d)
I don't know
6.
Why do we still need to encrypt information today?
4 lines
7.
How confident do you feel about the Cipher work we have covered last week?
a)
Very Confident
b)
Somewhat Confident
c)
Not very Confident
d)
I have no idea what I'm doing
100 %
