Interview Question

Linux Systems Administrator II Interview

-San Antonio, TX

Rackspace Technology

When does DNS use TCP instead of UDP

Answer

Interview Answers

4 Answers

2

DNS use TCP for zone transfer.

Cristian on

2

Maximum UDP packet size is 512 bytes (or 4096, with the extension of DNS protocol). When the request is larger then a max. UDP size, DNS will switch to TCP.

unknown on

0

speed

Anonymous on

0

Agreed....used for zone transfer....

Manoj on

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