N10-005 · Question #308
The technician is working on a DNS problem. Which of the following software tool is the technician MOST likely to use to troubleshoot this issue?
The correct answer is A. nslookup. nslookup is the dedicated command-line tool for querying DNS servers and diagnosing DNS resolution issues.
Question
The technician is working on a DNS problem. Which of the following software tool is the technician MOST likely to use to troubleshoot this issue?
Options
- Anslookup
- Bipconfig
- Cping
- Dnbtstat
How the community answered
(34 responses)- A94% (32)
- C3% (1)
- D3% (1)
Why each option
nslookup is the dedicated command-line tool for querying DNS servers and diagnosing DNS resolution issues.
nslookup allows a technician to query DNS name servers directly to resolve hostnames, look up records (A, MX, CNAME, etc.), and identify misconfigured or unreachable DNS servers. It can target specific DNS servers for comparison, making it the most effective tool for isolating DNS problems. No other listed tool provides direct DNS query capability.
ipconfig displays IP configuration details such as IP address and default gateway, but does not query or test DNS records.
ping tests basic ICMP reachability to a host but does not provide detailed DNS resolution diagnostics.
nbtstat is used to troubleshoot NetBIOS over TCP/IP name resolution, not standard DNS.
Concept tested: DNS troubleshooting with nslookup
Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/nslookup
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