M&m dissolving in water experiment

Q1=What is Bluetooth?ANS=Bluetooth is a wireless technology standard used to exchange data over short distances. The data is exchanged from fixed and mobile devices by creating Personal Area Network with security at high level. Bluetooth was originally conceived as a wireless alternate to RS-232 cables. It resolves the problems synchronization by connecting several devices.Q2= Bluetooth as a cable replacement technology explain?ANS=Blue tooth allows Personal Area Networks without the cables. It provides connectivity to many mobiles users at a time for sharing without wires. Blue tooth chip is designed for replacing cables by transmitting the information at a special frequency from sender to receiver.Q3=Explain the working of trace route?ANS=Trace route works by increasing the time-to-live value of every successive packets sent in batch. Every three packets that were sent first, have a time-to-live value 1. The next three packets have a TTL value of 2 and so on. The host decrements the TTL value by one and the packet is forwarded to the next host, when a packet passes through a host.When a packet (with a time-to-live value of 1) reaches a host, the packets will be discarded by the host, and an ICMP time exceeded packet is sent to the sender. A list of hosts, whose packets have traversed enrouted to the destination, is utilized by the trace route utility.Q4=What is Piconet?ANS=Piconet is an ad-hoc network by linking a group of users which uses blue tooth technology protocols for allowing one ‘master’ device to interconnect with up to seven active ‘slave’ devices. Further, up to 255 slave devices could be inactive or packed and the master device can bring into active status at any given point of time.The range of Piconet will vary based on the bluetooth device class. The data transfer rate varies around 200 to 2100 KB/S, depending upon the synchronous or asynchronous connection usage, and the number of devices connected in the piconet.Q5=Explain the following terms: ICMP, ARP, Multicast, Broadcast?ANS=Internet Control Message Protocol: This protocol is used for while checking the connectivity using ping commandAddress Resolution Protocol: This protocol is used to know about the properties of TCP/IP. For example, to know other system MAC addresses.Multicast: Communication between single sender and a list of select recipients in a network.Broadcast: To send messages to all the recipients simultaneously in a network.