Qwissit Cybersecurity

Security+ SY0-801

Cryptography and PKI

12 of 60 questions in the app

Encryption

  1. What characterizes symmetric encryption? Easy
  2. Which key do you use to encrypt a message so that only the recipient can read it? Easy
  3. Which algorithm is a symmetric block cipher? Easy
  4. What is Diffie-Hellman mainly used for? Easy
  5. What generally holds for an algorithm's key length, provided the algorithm itself is secure? Easy
  6. A laptop is stolen. Which encryption protects all data on the drive most comprehensively? Easy
  7. Which protocol typically protects the connection between browser and web server today? Easy

PKI

  1. How is the private key handled in a PKI? Easy

Encryption

  1. Why does TLS combine asymmetric and symmetric algorithms? Medium
  2. Which algorithms are asymmetric? Medium

PKI

  1. A web server's private key was copied during a break-in. The certificate is valid for another ten months. Which steps are necessary? Hard
  2. A company finds that clients still accept revoked certificates when the OCSP server is unreachable. What is this behavior called? Hard

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