data so large that traditional processors have difficulty

What is the key for a Caesar's cipher?

the number of letters the alphabet has been shifted

Moore's Law states...

computer processing speed doubles every two years

Using a Vigenere cipher, does the length of the key matter?

Yes, it makes pattern matching more difficult

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Unit 4 - Data and Privacy (Minus assymmetric)

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A #computer #science #principles quiz to complement #code.org #unit4

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Questions 11

Answers

1
What is "Big Data"?
data collected by the government
data so large that traditional processors have difficulty
data that requires at least 2 terabytes of storage
data typed in Times New Roman 54 point font
2
Companies are required by law to give users options about data that is collected about them.
TRUE
FALSE
3
This cipher requires a secret key which is then used to match each letter of the plain text...
Caesar's cipher
Random Substitution cipher
Vigenere cipher
Monoalphabetic Substitution
4
What is the key for a Caesar's cipher?
the number of letters the alphabet has been shifted
the hour modulus Caesar's age
a map for each letter to a different letter of the cipher
a secret phrase
5
Moore's Law states...
every ten years, computer size is halved
artificial intelligence will exponentially increase
computer processing speed doubles every two years
computer processing speed and size double every year
6
When an algorithm is used to encode a message it is called...
cipher
encryption
decryption
computation
7
How many possible keys are there for a random substitution cipher?
26!
25 x 26
26
25
8
Of the following ciphers, which is the most difficult to crack?
Vigenere cipher
Random substitution cipher
Caesar's cipher
9
Which of the following is NOT ideal for encryption?
Decoded message returns same data as original message
Easy/fast to encode
East/fast to crack
Easy to transmit encoded message
10
What aids in cracking a random substitution cipher?
Moore's Law
shift technique
frequency analysis
encryption detection
11
Using a Vigenere cipher, does the length of the key matter?
Yes, it makes pattern matching more difficult
No
Yes, but it must have at least one repeated phrase
Yes, it should match the length of the plaintext.

Unit 4 - Data and Privacy (Minus assymmetric) Flashcards | StudBud