Alice and Bob use a pre-shared key to exchange a confidential message. If Bob wants to send a confidential message to Carol, what key should he use?

Alice and Bob use a pre-shared key to exchange a confidential message. If Bob wants to send a confidential message to Carol, what key should he use?

• the same pre-shared key he used with Alice
• the private key of Carol
• a new pre-shared key
• the public key of Bob

Explanation: Encryption is an important technology used to protect confidentiality. It is important to understand the characteristics of the various encryption methodologies.

Exam with this question: Cybersecurity Essentials FINAL Quiz Answers Full