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Commands
SMTP uses commands and response to transfer message between a client and a server.
Each commands or reply is terminated by a two character ( carriage return and lien feel) end of line token .
Commands are sent from the client to the server. The format of a command is shown below it consists of a keyword followed by zero or more arguments. SMTP define 14 commands. The first five are mandatory. Every implementation must support these fie commands. The next three are often used and highly recommended. The last six are seldom used.
Explain the Multipath resistance The chipping codes used for CDMA not only exhibit low cross-correlation but also low autocorrelation. Thus, a version of the signal that is del
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Explain Logical Ring Physical Star topology for Token-Passing Standard. It is definite that any break in the ring at any point will interrupt communications for all machines.
802.11a OFDM a) Orthogonal frequency-division multiplexing utilizing a 5-GHz band b) Same as FDM except all sub bands are used by only one source at a given time c) Secu
10Base2 - Thinnet Cable diameter is about 0.64 cm (RG-58) More flexible as well as easier to handle and install than Thicknet "2" represents a maximum segment len
Q. Show Infrared Applications? - Wide bandwidth accessible for data transmission - Communication between mice, PCs, keyboards, and printers Media selection - Every
What are the features of star and ring topology The three networks have following features: star: best case is = 2, average case is = 2, worst case is = 2 ring: best case
Source Port Number This fields occupies the first 16 bytes of the UDP header. This fields typically hold the UDP port number of the application sending this datagram. The
Unused Reserved This is a 6 bite field reserved for future use.
The are various limitations of employing Wireless LAN technology in any multistory building in middle of Melbourne or any other big city are: • Range: The main problem of Wire
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