The correct statement about firewall security is ________.
A. "Everything that is not prohibited is allowed" High security
B. "Everything that is not allowed is prohibited" Low security
C. "Everything that is not prohibited is allowed" High flexibility
D. "Everything that is not allowed is prohibited" High convenience
查看答案
The incorrect statement about the firewall is ________.
A. The firewall is placed between the internal network and the external network
B. Firewalls can prevent the entry of viruses
C. The firewall is a collection of software and hardware
D. Firewalls can prevent illegal users from accessing internal networks
A ________ is hardware or software that acts as a filter to prevent unwanted packets from entering a network.
A. firewall
B. virtual private network
C. proxy server
D. PPTP
________ refers to the ability to ensure that an e-commerce site continues to function as intended.
A. Nonrepudiation
B. Authenticity
C. Availability
D. Integrity
Which of the following is an example of an integrity violation of e-commerce security?
A Web site is not actually operated by the entity the customer believes it to be.
B. A merchant uses customer information in a manner not intended by the customer.
C. A customer denies that he or she is the person who placed the order.
D. An unauthorized person intercepts an online communication and changes its contents.