Why DNS use both TCP and UDP ports. And for which purpose
it uses TCP and UDP.
Answer Posted / rajeev
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.
| Is This Answer Correct ? | 21 Yes | 1 No |
Post New Answer View All Answers
What is the difference between http and https?
What are the generally asked questions for a Person who is attending Network protocol testing L2/L3.
What is protocol extension?
How do you make a website HTTPS?
How do I ftp?
What does ftp stand for?
Give the name of protocol that is used by DNS name servers?
Where i can get the objective type question for Voip. please let me know soon.
How does FDDI node determine whether it can send asynchronous traffic and synchronous traffic
How do I create an ftp?
What are protocols? What are they used for?
Hi Guys, Can some please tell me which is the best institute for network protocol (l2 l3 l4 ) stack development in Noida.
What is HTTP and can you list few protocols with explanations?
A periodic composite signal with a bandwidth of 3000 Hz,is composed of two sine waves. First one has a frequency of 100 Hz with a maximum amplitude of 30 V, the second one has a maximum amplitude of 10 V. Draw the bandwidth.
What are the uses of protocols?