John is a merchant. He has set up a LAN in his office. Some important files are deleted as a result of virus attack. Joh
Posted: Mon Aug 01, 2022 9:35 am
John is a merchant. He has set up a LAN in his office. Some important files are deleted as a result of virus attack. John wants to ensure that it does not happen again. What will he use to protect his data from virus?
A. Backup
B. Symmetric encryption
C. Firewall
D. Antivirus
A. Backup
B. Symmetric encryption
C. Firewall
D. Antivirus