Before Recitation

Read textbook section 4.4: "Case study: The Internet Domain Name System (DNS)".

As you read, think about the following:

• What is the benefit of a recursive query? Does it decrease any overhead compared to a non-recursive query? If so, in what way?
• What are the benefits of DNS's hierarchical design? Are there any drawbacks?

Question for Recitation: Before you come to this recitation, you'll turn in a brief answer to the following questions (really—we don't need more than a sentence or so for each question). Your TA will be in touch about exactly how to turn that in. Your answers to these questions should be in your own words, not direct quotations from the paper.

• What is the purpose of DNS?
• How does it work?
• Why was it designed to work that way?
• Who is impacted by DNS?

During Recitation

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After Recitation