Which command line utility is used to look up DNS records for a domain?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which command line utility is used to look up DNS records for a domain?

Explanation:
Looking up DNS records directly against a domain’s DNS servers is what a name server lookup does. This capability asks a DNS server for specific records about a domain, such as the A record that maps the domain to an IP address, MX records for mail servers, CNAME aliases, or TXT records. It’s the precise way to verify how a domain is resolved on the internet and to troubleshoot DNS-related issues. Other options don’t perform this specialized retrieval. Ping checks reachability by sending ICMP packets to a host and is about connectivity, not DNS data. Tracert traces the network path packets take to a destination and reveals routing, not DNS records. Netstat shows active connections and listening ports, not DNS information. In practice, you’d use a dedicated DNS query tool like nslookup or dig to perform these lookups against a DNS server and to request specific record types.

Looking up DNS records directly against a domain’s DNS servers is what a name server lookup does. This capability asks a DNS server for specific records about a domain, such as the A record that maps the domain to an IP address, MX records for mail servers, CNAME aliases, or TXT records. It’s the precise way to verify how a domain is resolved on the internet and to troubleshoot DNS-related issues.

Other options don’t perform this specialized retrieval. Ping checks reachability by sending ICMP packets to a host and is about connectivity, not DNS data. Tracert traces the network path packets take to a destination and reveals routing, not DNS records. Netstat shows active connections and listening ports, not DNS information. In practice, you’d use a dedicated DNS query tool like nslookup or dig to perform these lookups against a DNS server and to request specific record types.

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