Following are some statements regarding the firewalls. Choose the correct statements
A. Examine traffic between computer and a network
B. Used to verify that data comes from a secure and trusted source
C. Use the concept of digital signature
D. Keep a list of IP addresses thus preventing access to certain websites
Choose the correct answer from the options given below:
1
A and D only
2
A and C only
3
B and C only
4
C and D only