13. Which of the following commands can be used to resolve a DNS name to an IP address?
Answer: D
host
The command that can be used to resolve a DNS name to an IP address is "host." This command is specifically designed for querying the Domain Name System (DNS) to find the associated IP address for a given domain name.
A) dnsname
The option "dnsname" is not a recognized command for resolving DNS names to IP addresses. It does not exist in standard networking tools, making it an incorrect choice for this purpose.
B) dns
The option "dns" is too vague and does not represent a specific command used for DNS resolution. While DNS is the system responsible for name resolution, "dns" itself is not a valid command for this task.
C) query
The term "query" is generic and does not refer to a specific command for resolving DNS names. Although querying is a process involved in DNS resolution, it is not a command that can be executed to directly obtain an IP address.
D) host
The "host" command is a valid and widely used command for resolving DNS names into IP addresses. It provides a straightforward way to perform DNS lookups and is specifically designed for this function.
E) iplookup
The option "iplookup" is not a standard command for resolving DNS names. While it may suggest the purpose of looking up an IP address, it is not commonly used in networking contexts and does not fulfill the requirement for DNS name resolution.
Conclusion
The correct answer, "host," is the appropriate command for resolving DNS names to IP addresses due to its specific functionality in DNS queries. All other options either do not exist as valid commands or do not directly perform the task of DNS name resolution, making them unsuitable for this purpose.