220-1002 Question #295: Real Exam Question with Answer & Explanation

The correct answer is C: DNS server. The key diagnostic clue is that users can reach websites via IP address but not by domain name. Web browsers use domain names (e.g., www.example.com), which must be resolved to IP addresses by a DNS (Domain Name System) server. If the DNS server is unreachable or misconfigured, n

Question

Users are reporting web browsers are not working. A technician confirms that the end users can navigate to websites using the site's IP address. Which of the following is MOST likely causing this issue?

Options

AProxy server
BDHCP server
CDNS server
DSMTP server

Explanation

The key diagnostic clue is that users can reach websites via IP address but not by domain name. Web browsers use domain names (e.g., www.example.com), which must be resolved to IP addresses by a DNS (Domain Name System) server. If the DNS server is unreachable or misconfigured, name resolution fails and browsers cannot load sites by name - but direct IP access still works because no DNS lookup is required. A broken proxy (A) would typically block both methods. DHCP (B) and SMTP (D) servers have no role in web browsing by domain name.

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