Computer Science for IGCSE & O level - Data Transmission (Section 7 - No. 47)
Which of the following best describes the term 'non-repudiation' in the context of security?
Ensuring data can be read by only the intended recipient.
Preventing a sender from denying they sent a message.
Verifying the integrity of a message.
Protecting a system from unauthorized access.
Giải thích
Non-repudiation means that the sender cannot deny they sent the message.