If a broadband user account passes the authentication but all web pages cannot be accessed, the possible causes can be:
Correct Answer:
A, B, C
Firewall Settings (Option A) :
Incorrect firewall settings on the PC can block outbound HTTP/HTTPS traffic, preventing access to web pages.
Browser Settings (Option B) :
Misconfigured browser settings (e.g., proxy settings in Internet Explorer) can prevent the browser from connecting to websites.
Upper-Layer Device Configuration (Option C) :
Incorrect configurations on upper-layer devices (e.g., NAT, routing, or DNS settings) can prevent proper communication between the user and external networks.
Website Server Fault (Option D) :
If the issue affects all web pages , it is unlikely to be caused by a single website server being faulty. This option is irrelevant in this scenario.
Why A, B, C?
These options directly address potential issues that could prevent access to all web pages after successful authentication.
Thus, the correct answers are A, B, C .
HCIA Huawei ACCESS Official Documentation , Chapter: Broadband Troubleshooting.
Broadband Access Network Fault Analysis by Huawei.
