GIAC
GSEC · Question #208
GSEC Question #208: Real Exam Question with Answer & Explanation
The correct answer is C. DNS. DNS (Domain Name System) is the service responsible for resolving human-readable hostnames into numeric IP addresses.
Question
Which of the following services resolves host name to IP Address?
Options
- AComputer Browser
- BDHCP
- CDNS
- DWINS
Explanation
DNS (Domain Name System) is the service responsible for resolving human-readable hostnames into numeric IP addresses.
Common mistakes.
- A. Computer Browser is a Windows network service that maintains a list of computers and shared resources on a local network segment, not a name-to-IP resolver.
- B. DHCP (Dynamic Host Configuration Protocol) dynamically assigns IP addresses and network configuration to clients, but does not perform hostname-to-IP resolution.
- D. WINS (Windows Internet Name Service) resolves NetBIOS names - not standard hostnames or FQDNs - to IP addresses, and is a legacy Microsoft-specific technology.
Concept tested. DNS hostname to IP address resolution function
Reference. https://www.rfc-editor.org/rfc/rfc1034
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