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Domain Name Service Basics - Quiz

Each question is worth one point. Select the best answer or answers for each question.
 
1. What is the function of a top-level domain name?
Please select the best answer.
  A. To designate all hosts belonging to organizations of particular types
  B. To divide the DNS namespace among organizations with networks
  C. To manage the relationship between the DNS namespace and IP addresses
  D. To subdivide domain names into additional names for departments and divisions

2. What is a reverse lookup?
Please select the best answer.
  A. A way to find a host’s numeric IP address by using the host’s name
  B. A way to replace a host’s numeric IP address with a host name
  C. A way to find a host’s name by using that host’s numeric IP address
  D. A way to subdivide a domain name into additional names

3. How is the DNS namespace organized?
Please select the best answer.
  A. Into numeric IP addresses and host names
  B. Into paths from the root to a DNS entity
  C. Into a tree of domains and subdomains
  D. Into absolute path names of files in the UNIX system

Correct answers:

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