Cisco Certified Support Technician (CCST) NetworkingIP ServicesEasy
A user reports that they can access websites by typing their IP addresses, but not by typing their domain names. Which IP service is most likely misconfigured or unavailable?
- ASyslog
- BDHCP
- CNTP
- DDNS
Show answer & explanationAnswer & explanation
Correct answer: D. DNS
DNS (Domain Name System) is responsible for translating human-readable domain names into machine-readable IP addresses. If DNS is misconfigured, name resolution will fail, even if direct IP access works.
Why the other options are wrong
- A. Syslog collects log messages, not involved in name resolution.
- B. DHCP assigns IP addresses, which are already known if direct IP access works.
- C. NTP synchronizes time, unrelated to domain name resolution.
DNS (Domain Name System)
A hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network.
- Translates domain names to IP addresses.
- Essential for web browsing and email.
- Uses a hierarchical structure of servers.
Memory trick: DNS: Domains Naming System, finds numbers for names.