Question

1. What is a NIC card? What does it do? What number is associated with it, and where does it get this number?
2. Describe ARP- what is it and how does it work?
3. Describe the role of the beacon frames in 802.11

Answer 1

NIC card is a component which offers networking facilities to the computer.Often called a expansion card or network adapter.It converts the data as electrical signals which conveys with network.It is a 12 digit hexadecimal string placed in network card which mainly recognizes the computer.It employs the methods like polling and interrupt driven-i/o for representing the packet for transfering is present.

Address Resolution Protocol is employed to MAC address, related through a offered address , usually IPV4 address that the network application is intended for interacting.It posses the domains such as the kind of protocol,hardware,opcode and length of address.(or) a protocol employed for translating the ip address as physical address like ethernet address.

Beacon frames posses the details regarding a network which were transmitted time to time for indicating the avalibility of LAN network.Often posses the domains such as timestamp, Traffic indication map (nodes which were present in power- mode),interval(duration for transmitting among beacon) and parameter sets(Details regarding particular signaling processes).