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Interview Questions & Answer for DNS

DNS


What is DNS? What is it used for?

How DNS works?

Explain the resolution sequence of: www.site.com

What types of DNS records are there?

What is a A record?

What is a AAAA record?

What is a PTR record?

What is a MX record?

Is DNS using TCP or UDP?

True or False? DNS can be used for load balancing

Which techniques a DNS can use for load balancing?

What is DNS Record TTL? Why do we need it?

What is a zone? What types of zones are there?

Rajesh Kumar
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