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802.11 DSSS
a) Direct sequence spread spectrum in a 2.4 GHz band
b) Each bit is replaced by a sequence of bits called a chip code, implemented at the physical layer
c) Sender splits each byte of data into several parts and sends them concurrently on different frequencies
d) Data rate is 1 or 2 Mbps
What common software problems can lead to network defects? Software related problems can be any or a combination of the following: - Client server problems - Application
Give some examples of private network addresses. 10.0.0.0 with a subnet mask of 255.0.0.0 172.16.0.0 with subnet mask of 255.240.0.0 192.168.0.0 with subnet mask of 255.2
When an error is discovered the receiver is able to ask the sender to retransmit the entire data unit Error Correction-Forward Error Correction A receiver is able to u
We need to design and implement a secure conference system. The system will allow users to connect to a conference server and to participate in a shared conversation. The conversat
Receive Window This field defines the size of the window in bytes that the other party must maintain. Note that the length of this field 16 bits which means
explain types of computer network
Question 1: (a) In networking, there are different possible topologies. Explain the Linear bus, Ring and Star topology along with their advantages and disadvantages. (b) W
Name the two commands that save the running-config to a TFTP server Ans) Two commands are:- a) copy running tftp b) write network
Create and simulate a network similar to the one shown here, using the NetML system. The network is a little more complex, as depicted at the right. There is an extra node
S t d "B" 6.4 m Ku-BAND EARTH STATION (2004) D-Sat (District Satellite Project) circuits for rural connectivity via satellite are in operation. Purpose of this project i
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