Practice DNS Resource Records (RRs) - 2.1.5 | Module 2: The Application Layer | Computer Network
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does TTL stand for in the context of DNS Resource Records?

πŸ’‘ Hint: Think about how long a record can stay valid in the cache.

Question 2

Easy

Name one type of DNS Resource Record.

πŸ’‘ Hint: Think of the types we discussed.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What type of DNS Resource Record maps a domain name to an IPv4 address?

  • A Record
  • CNAME
  • MX Record

πŸ’‘ Hint: Think about the type used for standard web addresses.

Question 2

True or False: A CNAME Record can point to another CNAME Record.

  • True
  • False

πŸ’‘ Hint: Consider the purpose of CNAME as creating aliases.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You are tasked with configuring a new domain for a website. Which types of DNS Resource Records would you need to set up, and why?

πŸ’‘ Hint: Think about both website access and email functionality.

Question 2

How would a DNS system behave if an authoritative DNS server for a domain becomes unavailable? Discuss the roles of caching and TTL.

πŸ’‘ Hint: Consider what happens to cached data and how long it stays valid.

Challenge and get performance evaluation