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Error Detecting Code - Parity bit:
The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receivers can use to check consistency of the delivered message, and to recover data determined to be erroneous. An error-detection scheme may be combined with a system for retransmissions of erroneous data
A parity bit is a bit that is added to a group of source bits to ensure that the number of set bits (i.e., bits with value 1) in the outcome is even or odd. It is a very simple scheme that can be used to detect single error in the output.
Fig. Transmit data using a parity bit
Screened Host Architecture This architecture consists of two host machines: a Screening Router and a Screening Host. Screening Router is placed between a local network and the
This new model of Client/Server having of thin, portable, "universal" clients that talks to superfast servers. In the simple form, a web server returns documents when clients ask f
Connecting Devices of bridges - Five kinds: - Repeaters - Hubs - Bridges - Two- and three-layer switches - Repeaters and hubs - layer one of Internet model -
Advantages of mobile wireless network over a wired network is it is very much popular, it is very easy to set up, it requires a simple plug and the speed and reliability is very
Control Commands: The STAT command is used as a way for the client to confirm that the server is still responding properly. The server must simply send a positive command res
FILTERING INCOMING FRAMES: An analyzer may be configured to process and filter frames. It may count frames of a specific size or type. It may also shows only frames from or to
Can you describe stateful inspection?
how does PPTP express the data?
State in brief about the Local Area Network (LAN) LAN is an interconnection of computers and associated peripherals as well as to the communications system as shown in Figure
Determine the Types of intranet Intranets have been broadly classified into three types based on their functionality, viz., The Bulletin Board, Database Management and
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