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Interview Question

Production Engineer Interview Menlo Park, CA

Why wouldn't you want a root DNS server to answer queries

  for you, instead of delegating you to an authoritative server?
Answer

Interview Answer

3 Answers

0

Answering queries would be a lot more overhead for the root DNS server, and think about the amount of DNS queries it gets.. load balancing

Anonymous on Apr 8, 2013
0

Because root DNS server can't handle zillions of requests at once, that's why you need a load balancer to split tasks on multiple DNS servers. every server has it's own limits, and load balancing helps to "scale" the limits.

holms on Aug 19, 2013
0

because it would be faster due also to caching mechanism.

Giorgio on Oct 30, 2013

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