CEH

78 Chapter 3 ■ Cryptography

13. Which system does SSL use to function?
    A. AES
    B. DES
    C. 3DES
    D. PKI


14. In IPSec, encryption and other processes happen at which layer of the OSI model?
    A. Level 1
    B. Level 2
    C. Level 3
    D. Level 4


15. In IPSec, what does Authentication Header (AH) provide?
    A. Data security
    B. Header security
    C. Authentication services
    D. Encryption


16. In IPSec, what does Encapsulating Security Payload (ESP) provide?
    A. Data security
    B. Header security
    C. Authentication services
    D. Encryption


17. At what point can SSL be used to protect data?
    A. On a hard drive
    B. On a flash drive
    C. On Bluetooth
    D. During transmission


18. Which of the following does IPSec use?
    A. SSL
    B. AES
    C. DES
    D. PKI