A technician is writing documentation regarding a company's server farm. The technician needs to confirm the server name for all Linux servers. Which of the following commands should the technician run?
nslookup (name server lookup) is a tool used to perform DNS lookups in Linux. It is used to display DNS details, such as the IP address of a particular computer, the MX records for a domain, or the NS servers of a domain
In certmaster lear is states "In a Windows environment, you can troubleshoot DNS name resolution with the nslookup command" Since the question is asking about Linux, I would assume the answer is "dig"
When using the CLI on those OSs, yes. However, the technician in question isn't necessarily running those commands on Linux; all we definitively know is that he's trying to verify the hostnames, which he can do remotely on another OS.
The question states "The technician needs to confirm the server name for all Linux servers" it doesn't state anything about him remoting on another OS. So I agree the answer should be "dig"
Just occurred to me that they're specifying that the technician needs to "confirm the server names for all Linux servers" - tricky phrasing from the question, but it implies that the servers are running Linux, not necessarily that the technician is, so nslookup would be viable for this question
To confirm the server name for Linux servers, the technician should run the following command:
B. nslookup
The "nslookup" command is used to query DNS (Domain Name System) servers to obtain information about domain names, including resolving domain names to IP addresses and vice versa. By running "nslookup" with the server's IP address, the technician can retrieve the corresponding hostname (server name) associated with that IP address from the DNS records. This command helps identify the server names in a Linux server farm setup.
This tripped me up because to me a computer name is its hostname not its FQDN name as you would get when you use nslookup against a machine. CompTIA...
Nslookup (stands for “Name Server Lookup”) is a useful command for getting information from the DNS server. It is a network administration tool for querying the Domain Name System (DNS) to obtain domain name or IP address mapping or any other specific DNS record. It is also used to troubleshoot DNS-related problems.
DNS (Domain Name Service) resolves IP address to name.
ARP (Address Resolution Protocol) resolves physical (MAC) address to IP address.
Address Resolution Translation is not a thing.
DNS do that, not ARP
The Address Resolution Protocol (ARP) - associates the 2 numeric addresses in the network => Mac + IP
Of course, this is not the right answer!
ARP resolve mac address to IP address.
RARP does the reverse.
upvoted 2 times
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