Top MCQs on System Design DNS cache with Answers

Question 1

DNS Cache is used for-

• Storing the data 

• Speed up the lookups

• Updating the new data 

• None of the above

Question 2

If a request is made to DNS , it will go through the-

• DNS resolver 

• TLD Server

• Authoritative Server

• None of the above 

Question 3

 If any entry is made to DNS , it will get expired after a certain time known as-

• Time to operate

• Time to live

• Time to process

• None of the above 

Question 4

A request’s response can be optimized using –

• Different cache layers

• Large memory 

• Big operating system 

• None of the above 

Question 5

The common DNS record(s) is/are-

• AAAA

• A

• AAAA

• All of the above