Networking Protocols Question: Download Networking Protocols PDF

Why DNS use both TCP and UDP ports. And for which purpose it uses TCP and UDP?

Answer:

DNS uses TCP for Zone Transfer over Port: 53
DNS uses UDP for DNS Queries over Port: 53
A client computer will always send a DNS Query using UDP
Protocol over Port 53. If a client computer does not get
response from a DNS Server, it must re-transmit the DNS
Query using the TCP after 3-5 seconds of interval.

Download Networking Protocols PDF Read All 21 Networking Protocols Questions

Previous Question	Next Question
Hoe often does updates happen in a routing table?	From the perspective of a computers network configuration, the name given to the IP address of the router to which the hosts in a particular subnet must go through to get to other networks/subnets is the?