Bob, your senior colleague, has sent you a mail regarding aa deal with one of the clients. You are requested to accept the offer and you oblige. After 2 days, Bob denies that he had ever sent a mail. What do you want to “know” to prove yourself that it was Bob who had send a mail?
A. Confidentiality
B. Integrity
C. Non-Repudiation
D. Authentication
Answer:C
Bob, your senior colleague, has sent you a mail regarding aa deal with one of the clients. You are requested to accept the offer and you oblige. After 2 days, Bob denies that he had ever sent a mail. What do you want to “know” to prove yourself that it was Bob who had send a mail?
A. Confidentiality B. Integrity C. Non-Repudiation D. Authentication