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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
The most expensive method of accessing the Internet is to employ leased lines that directly connect to the ISP. This will enhance access rate to anywhere between 64 K and 1.5 Mbps,
Mesh : This is two dimensional networks. In this all processing elements are organised in a two dimensional grid. The processor in the row i and column j are indicated by PE i .
Define the term Socks- Network security As it is well known, each type of network security protects data at a different layer of the OSI model. Built-in at each layer lies the
I Have an exam Questions and i would like it to be answered. Thanks
Define Routing? The process of determining systematically hoe to forward messages toward the destination nodes based on its address is known as routing.
Ethernet Addressing Every station on the network must have a unique physical address Offered by a six-byte physical address encoded on the network interface card (NIC)
What are the advantages of Star Topology? The advantages of star topology are: a. Relatively easy to configure. b. Simple to troubleshoot c. Media faults are automatic
assignment is for incident response In this final week, you will provide a short procedures document (2–3 pages) concerning the steps by which to prepare for and execute expert te
To stop Service Advertisements (SAPs) from flooding a network, Cisco routers do not forward them. How are services advertised to other networks? Ans) Every router builds its own
QUESTION 1: (a) Define what you understand by the following terms in Network Flows: i) UnDirected Path ii) Directed Path iii) Directed Cycle. iv) Tree In each of the abov
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