SK0-005 Question #101: Real Exam Question with Answer & Explanation

Question

After configuring a server, a technician is unable to access websites by URL but can access websites by typing in an IP address. Which of the following is the MOST likely cause of this issue?

Options

• AThere is a misconfigured firewall.
• BThe DNS is misconfigured.
• CThe DHCP is not enabled on the server.
• DThere is an incorrect gateway configuration.

Explanation

The inability to access websites by URL while still being able to access them by IP address indicates a problem with name resolution, which points directly to a misconfiguration of DNS.

Common mistakes.

• A. A misconfigured firewall would typically block traffic to specific ports or IP addresses, preventing access by both URL and IP address, or block access entirely.
• C. DHCP (Dynamic Host Configuration Protocol) assigns IP addresses and other network configuration details. If DHCP were not enabled or failed, the server might not have an IP address or correct network settings at all, preventing any network access, including by IP.
• D. An incorrect gateway configuration would prevent the server from reaching any destination outside its local subnet, meaning it could not access external websites by either IP address or URL.

Concept tested. DNS resolution and network troubleshooting

Reference. https://learn.microsoft.com/en-us/windows-server/networking/dns/what-is-dns

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