Week 11 UAS Flashcards Preview

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Flashcards in Week 11 UAS Deck (5)
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1
Q

Name Format in DNS?

A

domain.zone

zone in the right element, also known as Top level
the next segment is called domain and regulated by ICANN. must be uniques.

2 Top-Level Domain:

  1. TLD generic (.com, .net, .org)
  2. country code (.uk, .de, .jp)
2
Q

DNS system consists of three component:

A
  1. DNS data (Resource Records)
  2. Servers (Name Servers)
  3. Protocol
3
Q

explain DNS?

A
  • Top Level Domains are in the top and the maximum tree depth is 158
  • Domains are sub trees (.edu, univ.edu, ece.univ.edu)
  • Name collisions must be avoided.
4
Q

What is name-address resolution?

A

mapping a name to an address or an address to a name

5
Q

2 types of Resolution?

A
  1. Recursive resolution

2. Iterative resolution