Lecture 11 - Naming II

Question 1

In the DNS design, the root servers are responsible for storing records of:

a) Top level domain (TLD name servers)
b) Both authorative and TLD name servers
c) Authorative name servers

Answer 1

a) Top level domain (TLD name servers)

Question 2

Which of the following has a structured name?

a) MAC address
b) Memory address
c) Domain name

Answer 2

c) Domain name

Question 3

In recursive name resolution, the root server resolves the name and give the answer to local NS

a) True
b) False

Answer 3

a) True

Question 4

What is the benefit of caching in DNS?

a) Imporve security
b) Improve scalability

Answer 4

b) Improve scalability

Question 5

How is performance and scalability achieved in the DNS design?

a) By using extensive replication and caching
b) Using recursive reoslution
c) Using iterative resolution

Answer 5

a) By using extensive relication and caching

Question 6

What type of naming scheme is adequate to design a system where several attributes of an entity is required?

a) Flat naming
b) Structured naming
c) Attribute based naming

Answer 6

c) Attribute based naming