You are a desktop support technician for your company. All client computers run Windows XP Professional. All users use Microsoft Internet Explorer as their Web browser.
A user reports that when she tries to purchase an airline ticket online, she receives the following error message: “Cannot load the page, please contact your system administrator.”
You discover that she can access other sites without receiving the error message.
What is the most likely cause of the error?
A.
The network connection is faulty.
B.
The TCP/IP stack has been corrupted.
C.
Port 80 (HTTP) on the firewall is disabled.
D.
Port 443 (HTTPS) on the firewall is disabled.