Free EC-COUNCIL 212-81 Exam Dumps Questions & Answers

Which of the following is not a key size used by AES?

• A.  128 bits
• B.  192 bits
• C.  512 b
• D.  256 bits

How does Kerberos generate the first secret key in the authentication process?

• A.  By using the user's public key
• B.  By creating a hash of the user password
• C.  By hashing the user ID, network ID. and salt
• D.  By generating a random AES key

The Clipper chip is notable in the history of cryptography for many reasons. First, it was designed for civilian used secure phones. Secondly, it was designed to use a very specific symmetric cipher. Which one of the following was originally designed to provide built-in cryptography for the Clipper chip?

• A.  Skipjack
• B.  Twofish
• C.  Blowfish
• D.  Serpent

A list of certificates that have been revoked.

• A.  OCSP
• B.  CRL
• C.  CA
• D.  PCBC

Symmetric algorithm. Designed by James Massey and Xuejia Lai. Operates on 64 bit blocks and has a 128 bit key. Consists of 8 identical transformations each round and an output transformation.

• A.  DES
• B.  IDEA
• C.  RSA
• D.  CAST