Cryptography and PKI ECSS Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which standard defines the format of digital certificates?

   • AX.509
   • BRSA
   • CPKCS#12
   • DSSL/TLS
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   Which trust model allows users to directly trust each other's public keys without a central authority?

   • ABridge trust model
   • BWeb of trust
   • CHierarchical trust model
   • DSingle CA model
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which of the following is a key difference between symmetric and asymmetric encryption?

   • ASymmetric encryption is always more secure than asymmetric
   • BSymmetric encryption does not require a key
   • CAsymmetric encryption is faster than symmetric encryption
   • DSymmetric encryption uses a single key, while asymmetric uses a key pair
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   Which of the following is a common symmetric encryption algorithm?

   • AAES
   • BRSA
   • CECC
   • DDiffie-Hellman
   Reveal Solution Discussion Select an answer first
6. 10expert · hard

   A company is choosing an encryption method for a high-volume transaction processing system. The system must encrypt data in transit between two servers that already share a pre-configured secret. Which method is most appropriate?

   • ASymmetric encryption using the shared secret
   • BHash the transaction data and send the hash
   • CUse a digital signature on each transaction
   • DAsymmetric encryption for every transaction
   Reveal Solution Discussion Select an answer first