A technician is having issues accessing the Internet from the workstation. They are able to ping the DNS server and their default gateway. Which of the following commands can be used to verify DNS…

The correct answer is A. nslookup. Since the technician can already ping the DNS server (confirming Layer 3 connectivity), the next step is to verify that DNS name resolution is actually working. nslookup lets you manually query a DNS server and see whether hostnames resolve to IP addresses correctly. If…

Network troubleshooting

Question

A technician is having issues accessing the Internet from the workstation. They are able to ping the DNS server and their default gateway. Which of the following commands can be used to verify DNS is functioning properly?

Options

Anslookup
Bnetstat
Ctraceroute
Dnbtstat

How the community answered

(46 responses)

A
89% (41)
B
2% (1)
C
4% (2)
D
4% (2)

Explanation

Since the technician can already ping the DNS server (confirming Layer 3 connectivity), the next step is to verify that DNS name resolution is actually working. nslookup lets you manually query a DNS server and see whether hostnames resolve to IP addresses correctly. If nslookup returns an answer, DNS is functional; if not, DNS is the problem. The other tools do not test DNS: netstat displays active connections and ports; traceroute (tracert) traces the network path to a destination; nbtstat is specific to NetBIOS name resolution, not standard DNS.

Topics

#nslookup#DNS troubleshooting#connectivity verification#command-line tools

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