1. What is a password?
Answer: A password is a type of authentication that enables a user to verify that he or she is who they claim to be. Users supply a password and the authentication system compares the password with the stored password. If the values match, the user authenticates.
2. What is the process of getting someone to carry out a task for you?
Answer: Social engineering is the process of getting someone else to carry out a task for you.
3. Are more complex passwords stronger or weaker than simpler passwords?
Answer: Complex passwords are stronger than simple ones if they are kept secret, but in practice they are often weaker than simpler passwords because they are difficult to remember. Users often write down passwords they have difficulty remembering.
4. What method should you first use to get a password?
Answer: Ask for a password first whenever possible.
5. What type of password attack tries passwords from a predefined list?
Answer: A dictionary attack attempts to find a password using a predefined list of potential passwords.
6. Which type of password attack uses passwords from a list and then tries variations on each element from the list?
Answer: A hybrid attack attempts to find a password using a predefined list of potential passwords, and then attempts variations of each element in the list.
7. What is an algorithm for encrypting and decrypting data?
Answer: A cipher is an algorithm used to encrypt and decrypt data.
8. What term describes an encrypted message?
Answer: Ciphertext is the term used to describe an encrypted message.
9. The Rijndael cipher is the basis for which symmetric encryption algorithm?
Answer: The Rijndael cipher is the basis for the AES symmetric encryption standard.
10. Which symmetric encryption algorithm uses 56-bit keys?
Answer: The DES symmetric encryption algorithm uses 56-bit keys.