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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 are the basic LAN topologies? The three simple LAN topologies that are combined to shape any practical topology are called as basic LAN topologies. They are, Bus Topology
Genome4U is a scientific research project at a large university in the United States. Genome4U has recently started a large-scale project to sequence the genomes of 250,000 volun
Determine about unique least-cost path If there is a unique least-cost path, the two algorithms will yield the similar result because they are both guaranteed to search the lea
You are requested to design a secure home or small scale network (Fig. 1) to satisfy the key concepts underlying computer and network security: confidentiality, integrity, availabi
Difference between synchronous tdm and statistical tdm
Q. Explain about Virtual Circuit Switching? Virtual Circuit Switching - All packets belong to a message (or) session is preserved. - Single route is selected between s
Inside a device, every address mask is stored as a 32-bit number. When we submit a prefix and an address mask they use a changed form of dotted decimal addressing known CIDR addres
Computer Networks 1. Write about different network structures in use. 2. Explain the architecture and usage of ISDN. 3. Describe the concept of framing in Data Link Layer
Describe in details about all networks ?
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
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