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- 1. Multiple Choice
Convert "GJGB" cipher-text back into plain text using the key: 1
FIFA
HKHC
EHEZ
JMER
- 2. Multiple Choice
Convert "VOOVXF" cipher-text back into plain text using the key: -5 or +5
ATTACK
FYYFHP
RETRET
BARCA
- 3. Multiple Choice
Convert "OQQC" cipher-text back into plain text using the key: -10
EGG
MILK
EGGS
HAMS
- 4. Multiple Choice
"Bletchley Park" is plain text, what would be the cipher text with key of -10.
Rbujsxbuo Fqhb
Rhujsxbuo Fqha
Rbujsxbuo Fqha
Rrujsxbuo Fqha
- 5. Multiple Choice
"Manchester City FC" is plain text and the cipher text is: "Bpcrwthitg Rxin UR" - What would the encryption key be?
+15
-14
+10
+16
- 6. Multiple Choice
A cipher is _________________________.
a person who makes up secret codes
an algorithm that is used to scramble text so that it can be passed in secret
a lock that can be used to lock a message in a lock box
any puzzle, such as a crossword or Sudoku puzzle
- 7. Multiple Choice
Encrypt the word alphabet using a Caesar cipher with a shift of 3
DVSDULQV
DOOFOHDU
DOSKDEHW
DORQHBHV
- 8. Multiple Choice
The following word was encrypted using a Caesar cipher with a shift of 2: ecguct. What word is it?
julius
caesar
romans
cipher
- 9. Multiple Choice
Who was the first know user of the Caesar Cipher?
Caesar Romanus
Julius Caesar
Alan Turing
There isn't one
- 10. Multiple Choice
In Cryptography, original message, before being transformed, is called
Simple Text
Plain Text
Cipher Text
Filled Text
- 11. Multiple Choice
An encryption algorithm transforms plain text into:
Cipher text
Simple Text
Empty Text
Plain Text
- 12. Multiple Choice
A(n) ______ algorithm transforms cipher text to plain text.
Encryption
Decryption
- 13. Multiple Choice
The _______ is a number or a set of numbers on which the cipher operates.
secret
cipher
key
none of the mentioned
- 14. Multiple Choice
The process of converting a ciphertext into plaintext.
encryption
decryption
plaintext
cryptography
- 15. Multiple ChoiceIn what year was Julius Caesar born?100 BCE50 BCEAD 50AD 100
- 16. Multiple Choice
Encrypt the word Lagoon using a Caesar cipher with a shift of -3
hwckkj
odjrrq
jyemml
ixdllk
- 17. Multiple Choice
The following word was encrypted using a Caesar cipher with a shift of -4: Wsaokia. What word is it?
Ability
Awesome
Jazzman
Puzzled
- 18. Multiple ChoiceAn encryption key is used to help decrypt messagesTrueFalse
- 19. Multiple ChoiceIf you were to use a caeser cipher with a key of 3 shifts to the left, how would you encrypt the word: Cipher?ZAMEBOZOMEBOZFMEBOZFMEBA
- 20. Multiple Choice
Taking a secret message and reproducing the original plain text is known as?
Caesar Cipher
Encryption
Cipher Text
Decryption
- 21. Multiple Choice
The process of converting plaintext to ciphertext.
cryptography
cyphertext
decryption
encryption
- 22. Multiple Choice
The process of converting a ciphertext into plaintext.
encryption
decryption
plaintext
cryptography
- 23. Multiple Choice
What is the algorithm of ceasar's cipher?
Each letter is replaced with a particular symbol
Each letter is replaced with a letter a certain number of steps down the alphabet
Each letter is replaced with a particular number from 0 to 26, and numbers are replaced with letters.
Each letter is replaced with a completely random number
- 24. Multiple ChoiceA specific encryption codeCodeCipherScramble
- 25. Multiple Choice
What does this padlock sign mean in the address bar of your browser?The site is secure and data is transmitted using SSLThere is a padlock available for purchaseThe website does not include "safety locks"The page is locked down using PHP or ASP scripting - Answer choicesTagsAnswer choicesTags