SK0-005 Question #85: Real Exam Question with Answer & Explanation

Question

A server technician is troubleshooting an issue regarding users who are not able to access a reporting server. The reporting server has a static IP address and is connected to a Windows domain. The technician attempts steps to narrow down the issue: - Pings the hostname but is not successful - Pings the IP address and is successful - Verifies the IP and DNS settings on the NIC card are okay Which of the following should the technician do NEXT?

Options

• APerform a tracert to the hostname and IP address.
• BReboot the computer to apply security updates to the system.
• CVerify the DNS A record for the hostname of the server.
• DUpdate the DNS configuration on the host NIC card to localhost for lookups.
• EPerform an ipconfig on the host to verify the IP configurations.

Explanation

When a server can be reached by IP but not by hostname, the problem lies with name resolution, requiring verification of the server's DNS record.

Common mistakes.

• A. Performing a tracert would confirm network pathing, which is already implied to be working since ping to the IP address is successful; it would not directly diagnose a DNS resolution failure.
• B. Rebooting the computer to apply security updates is unrelated to a specific DNS name resolution issue where IP connectivity is proven.
• D. Updating DNS configuration to localhost would only prevent proper external name resolution, worsening the problem for a client needing to resolve a server's hostname.
• E. Performing an ipconfig is redundant as the technician has already 'Verifies the IP and DNS settings on the NIC card are okay'.

Concept tested. DNS name resolution troubleshooting

Reference. https://learn.microsoft.com/en-us/windows-server/networking/dns/troubleshoot/troubleshoot-dns-client

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