212-81v3 Practice Test

Review 64 212-81V3 practice questions with answer explanations and community insights.

Question 1

3DES can best be classified as which one of the following?

  1. Hashing algorithm
  2. Digital signature
  3. Symmetric algorithm
  4. Asymmetric algorithm

Question 2

You have been tasked with selecting a digital certificate standard for your company to use. Which one of the following is an international standard for the format and information contained in a digital certificate?

  1. CA
  2. CRL
  3. RFC 2298
  4. X.509

Question 3

What is the basis for the difficulty in breaking RSA?

  1. Factoring numbers
  2. Hashing
  3. Equations that describe an elliptic curve
  4. The birthday paradox

Question 4

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

  1. By creating a hash of the user password
  2. By generating a random AES key
  3. By using the user's public key
  4. By hashing the user ID, network ID, and salt

Question 5

The mode makes a block cipher into a synchronous stream cipher. It generates keystream blocks, which are then XORed with the plaintext blocks to get the ciphertext.

  1. Electronic codebook (ECB)
  2. Output feedback (OFB)
  3. Cipher feedback (CFB)
  4. Cipher block chaining (CBC)