Computer Science for IGCSE & O level - Data Transmission (Section 11 - No. 39)
What is the role of encryption in data security?
To verify the identity of the sender.
To ensure data is available at all times.
To protect data from unauthorized access.
To improve the efficiency of data transmission.
Vysvětlení
Encryption protects data confidentiality by making it unreadable without the appropriate key.