Loop cards are a great game that can be played individually or as a class. They are perfect for review key vocabulary or questions at the end of a topic or when revising for an exam.
Instructions
Cut out the cards from the paper horizontally (but don't cut them in half!) and then shuffle them.
Now start joining each question on the right hand side of the card to the matching answer on the next card.
Carry on until all the cards loop together and you have competed the game!
Hint: Make sure that you set your paper to portrait to print 4 cards per sheet of A4 paper.
A security mechanism that requires users to provide two different types of evidence before granting access to a system.
Repetition
The practice of using the same key repeatedly in a cipher.
Symbol Set
The set of symbols used in a cipher to represent plaintext letters.
Key Space
The total number of possible keys that can be used by a cipher
Rows
The horizontal lines of the zigzag pattern used to write the plaintext for the Rail Fence Cipher
Brute-Force Attack
An attack on a cipher by trying every possible key until the correct one is found.
Alphabet
A set of letters or symbols in a fixed order used to represent the basic sounds of a language.
Dictionary Attack
A method of attempting to gain unauthorized access to a system by systematically attempting all possible combinations of words from a dictionary as passwords.
Frequency Analysis
The study of the frequency and distribution of letters or symbols in a text to help break a cipher.
Monoalphabetic Cipher
A substitution cipher in which each letter is replaced with a single, fixed symbol throughout the ciphertext.