Computer Networks · Question 16 · Easy

What is the main job of DNS (Domain Name System)?

  1. Assigning IP addresses to hosts automatically
  2. Translating domain names such as example.com into IP addresses
  3. Encrypting web traffic
  4. Finding the MAC address for an IP address
Answer and explanation

Answer: B. Translating domain names such as example.com into IP addresses

Explanation: DNS resolves human-readable host names to IP addresses. Automatic address assignment is DHCP's job, and finding MAC addresses is ARP's job.

Previous: A TCP sender has a congestion window of 16 MSS, with the whole window in… · Next: What is the default port number of SMTP, the protocol used to send email…

Practise computer networks

Try a fresh set of computer networks questions with an explanation after every answer, free and without signing up: Computer Networks practice. Or sit a full placement mock test.

More computer networks questions

More technical & programming practice

Software Engineering · Cloud & DevOps · GenAI Basics · Pseudo-code · C Programming · Java · Python · Data Structures

LogicWiz Exams home · All practice topics · Placement mock tests · Daily 10 challenge