q).What is dnsperf ? ans). *.dnsperf is a DNS server performance testing tool. q).

ICMP Internet control message protocol q). Why we use ICMP? ans). *.The IPV4 provides unreliable and connectionless datagram delivery. It was designed this way to make efficient use of network resources. *.The IP protocol is a best-effort delivery service that delivers a datagram from its original source to its final destination. *.However, it has two…

q).what is http/2 or h2? ans). *.HTTP/2 was developed to address the limitations of HTTP/1.1 and improve the performance of web applications. *.HTTP/2, also called h2 for simplicity. RFC 7540 *.Potential move to serving over TLS (HTTPS).

q).what is http? *. HTTP = a protocol used to transfer information over the world wide web. *.It is the foundation of data communication on the Internet. q).will http use UDP? *.No, HTTP protocol that is typically run on top of the TCP or sometimes on top of a secure SSL/TLS connection. It is not…

q). Is Http binary protocol? *. No, in my sense Http is not a binary protocol. It does’t send traffic/data in a way of 0’s and 1’s. q).why do some guys call http as binary protocol? *.http often uses tcp protocol. tcp sends data over the network in 0’s and 1’s fashion. that might people…

q).what is :authority header?a)The :authority header is a HTTP header field that specifies the authority portion of the target URI (Uniform Resource Identifier). It is used in the HTTP/2 protocol, which is an update to the HTTP protocol used for communication on the World Wide Web. In HTTP/2, the :authority header is equivalent to the…

Zigbee(802.15.4) *.It is a technological standard created for control & sensor network. *.Zigbee is a wireless technology standard that defines a set of communication protocols for short range communications. *.Zigbee is built on top of the IEEE 802.15.4 physical layer and designed To meet the needs of low cost battery operated device *.ZigBee is a…