SK0-004 · Question #809
connect to this website, although other sites can be reached. Which of the following tools should the administrator use at the desktop to determine the specific issue? (Choose two.)
The correct answer is A. nslookup B. ping. When a single website is unreachable but others are not, nslookup checks whether DNS resolves that hostname correctly, while ping tests basic Layer 3 connectivity to the destination address.
Question
connect to this website, although other sites can be reached. Which of the following tools should the administrator use at the desktop to determine the specific issue? (Choose two.)
Options
- Anslookup
- Bping
- Croute
- Dnetuse
- Enetcheck
How the community answered
(60 responses)- A93% (56)
- C3% (2)
- D2% (1)
- E2% (1)
Why each option
When a single website is unreachable but others are not, nslookup checks whether DNS resolves that hostname correctly, while ping tests basic Layer 3 connectivity to the destination address.
nslookup queries DNS servers to resolve a hostname to an IP address; if the specific site's DNS record is missing, misconfigured, or returning an incorrect result, nslookup will reveal this as the cause of the failure.
ping sends ICMP echo requests to the destination IP, confirming whether the host is reachable at the network layer; a successful DNS lookup combined with a failed ping points to a routing or firewall issue specific to that destination.
The route command displays or modifies the local routing table and is used to diagnose routing misconfigurations that would affect all destinations on a subnet, not a single website.
'netuse' is not a standard networking diagnostic command; 'net use' maps network drives and shares and is unrelated to website reachability troubleshooting.
'netcheck' is not a real or standard command-line networking utility and does not exist in common operating system toolsets.
Concept tested: DNS and connectivity troubleshooting for single-host failures
Source: https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/nslookup
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