Cryptographic Solutions SY0-701 Practice Questions (Page 5)

Questions 21–22

1. 21application · medium

   A law firm needs to send a legally binding document to a client. The firm must ensure the client knows the document is genuinely from the firm and has not been altered. The client does not have a pre-shared secret with the firm. What should the firm do?

   • AUse a shared secret key to encrypt the document and send the key via email.
   • BHash the document and send the hash along with the document.
   • CEncrypt the document with the client's public key.
   • DSend the document with a digital signature using the firm's private key.
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2. 22foundation · easy

   What is the main difference between symmetric and asymmetric encryption?

   • ASymmetric uses one key for both encryption and decryption; asymmetric uses a pair of keys
   • BSymmetric is used only for data at rest; asymmetric is used only for data in transit
   • CSymmetric provides integrity; asymmetric provides confidentiality
   • DSymmetric is slower than asymmetric for large data
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