c_in_depth

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…

PING – Packet INternet Groper Utility q).Why devices are not in online? why we can’t reach network? How to troubleshooooot? *. Ping is an utility, which helps somehow to narrow down this.

Link: A Link is a network that allows a set of computers to communicate with each other. eg 1: if all computers in an office are wired together, the connection makes a link eg 2: If several computers belonging to a private company are connected via a satellite channel, the connection is a link. q).What…

In Linux, an instance we call it as a process. And The process might have multiple threads(0 or 1 or more). by default a process is a single threaded. q).process vs threads ? *.all threads are part of process. the main process is main thread. eg: if we have multiple threads, all threads are child’s…

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Valgrind is more in general memory debugger tool. Debuggers Specially used to figure out memory leaks in our system programming with the help of Valgrind. It’s a great tool where most focussed in memory profiling. Ufh! not like gdb. Valgrind was originally designed to be a free memory debugging tool for Linux on x86, but…