Previous Page Next Page Page 23 of 30 Question 23 (1 point) Assume receiver B received a signed document from sender A under the digital signature scheme. Which of the following keys should be used for verifying the signature on the document? 1) A's public key 2) A's private key 3) B's public key 4) B's private key Previous Page Next Page Page 24 of 30 Question 24 (1 point) A(n) is a potential for violation of security, which exists when there is a circumstance, capability, action or event that could breach security and cause harm. 1) threat 2) attack 3) risk 4) attack vector Question 25 (1 point) A(n) is an action, device, procedure, or technique that reduces a threat, a vulnerability, or an attack by eliminating or preventing it, by minimizing the harm it can cause, or by discovering and reporting it so that correct action can be taken. 1) deterrence 2) protocol 3) control 4) recovery