Chapter 12: Domain Name System (DNS) — Online MCQ Test
COMPUTER APPLICATIONS · CLASS 12th · Tamil Nadu State Board
Practice Chapter 12: Domain Name System (DNS) with a free chapter-wise online MCQ test.
This chapter covers: Focusing on network address resolution this chapter details DNS architecture domain namespaces name servers and zone files. Students examine how IP addresses translate to domain na....
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Chapter 12: Domain Name System (DNS) — Important Questions & Answers
What does DNS stand for?
- A. Domain Name System
- B. Data Name Service
- C. Digital Network Security
- D. Domain Network Server
Answer: A. Domain Name System
DNS stands for Domain Name System. It is used to convert domain names into IP addresses.
DNS stands for Domain Name System. It is used to convert domain names into IP addresses.
Which of the following is the main function of DNS?
- A. To create web pages
- B. To translate domain names into IP addresses
- C. To protect computer files from viruses
- D. To connect a printer to a computer
Answer: B. To translate domain names into IP addresses
DNS resolves human-readable domain names into machine-readable IP addresses so that devices can communicate on the internet.
DNS resolves human-readable domain names into machine-readable IP addresses so that devices can communicate on the internet.
A user types a website name in the browser and the browser gets the corresponding IP address. Which process is this?
- A. Domain registration
- B. Name resolution
- C. Packet switching
- D. Email routing
Answer: B. Name resolution
Name resolution is the DNS process of mapping a domain name to its IP address.
Name resolution is the DNS process of mapping a domain name to its IP address.
A student wants to explain why DNS is needed even though computers use IP addresses. Which statement is best?
- A. Humans remember names more easily than numbers
- B. IP addresses cannot be used on the internet
- C. Domain names replace all network protocols
- D. DNS is only needed for email systems
Answer: A. Humans remember names more easily than numbers
DNS helps users by converting easy-to-remember domain names into numerical IP addresses. This makes internet use simpler for humans.
DNS helps users by converting easy-to-remember domain names into numerical IP addresses. This makes internet use simpler for humans.
Which statement is the most accurate about a secondary name server?
- A. It stores a copy of zone data obtained from the primary server
- B. It creates domain names for websites automatically
- C. It replaces the need for the root server
- D. It can only work without network connectivity
Answer: A. It stores a copy of zone data obtained from the primary server
A secondary name server maintains a copied version of the zone file from the primary server for backup and load sharing.
A secondary name server maintains a copied version of the zone file from the primary server for backup and load sharing.