Practice Quiz

MCDST Desktop Technician Exam Prep

Category - MCDST

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You are working as an IT administrator at your organization. One of the employees tries to do some financial transactions from her online banking account. She reports that she receives the following error message: “Cannot load the page, please contact your system administrator.” However, she can access other Web sites. Which of the following could be a cause for this error message?
  1. The physical network connection is faulty.
  2. Port 443 or HTTPS on the firewall is disabled.
  3. The TCP/IP stack has been corrupted.
  4. Port 80 or HTTP on the firewall is disabled.
Explanation
Answer - B - This error message is due to the fact that port 443 pr HTTPS on the firewall is disabled.

Key Takeaway: HTTPS is a URI scheme that signals the browser to use an added encryption layer of SSL/TLS to protect traffic. SSL is suited for HTTP since it can provide some protection, even if only one side of the communication is authenticated. HTTPS connections are used for payment transactions on the World Wide Web and for sensitive transactions in corporate information systems. HTTPS uses TCP port 443. In this case, if this port is blocked, the firewall should be re-configured to open this port.
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