nb

Posted by on Aug 23, 2020 in Computers | 0 comments

Are you ever unhappy with the way the world is going? Many people complain but do not do anything to change it. In Spain and in many other countries, women get less money than men doing the same job. In my opinion everybody should have the same rights./Since the begining of time, women have been treated as inferior human beings. In the early years they were considered as mere objects, whose only utility was to raise the children and to do all the house keeping, while the man was working, or having

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Untitled 2

Posted by on Aug 21, 2020 in Computers | 0 comments

Energy flow in ecosystem-Energy flow (also called Calorific flow)refers to the flow of energy in ecosystem through food chain.

energy_transfer.jpg

Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. At the first trophic level, primary producers (plants, algae, and some bacteria) use solar energy to produce organic plant material through photosynthesis. Herbivores—animals that feed solely on plants—make up the second trophic level. Predators that eat herbivores comprise

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148

Posted by on Aug 13, 2020 in Computers | 0 comments

Transport services and protocols: provide communication between app processes running on different hosts. Send side: breaks app messages into segments, passes to network layer. RCV side: reassembles segments into messages, passes to app layer. Network layer: logical communication between host. Transport layer: local communication between processes -relies on enhances, network layer services. TCP: congestion control, flow control, connection setup.Multiplexing(sender): handle data from multiple Read More

Regression

Posted by on Jun 30, 2020 in Computers | 0 comments

Regression

Regression is a well-known statistical technique to model the predictive relationship between several independent variables (DVs) and one dependent variable. The objective is to find the best-fitting curve for a dependent variable in a multidimensional space, with each independent variable being a dimension. The curve could be a straight line, or it could be a nonlinear curve. The quality of fit of the curve to the data can be measured by a coefficient of correlation (r), which is the

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cs

Posted by on Feb 29, 2020 in Computers | 0 comments

1. We can already build networks with links and switches and send fr..so then why do we need network layer?
     The above design does not scale to large network – can blow up of routing table, broadcast will bring the network down. Doesn’t work across for more than one link layer tech like WIFI, 3G. Not much control over the traffic
2. Describe the steps of the shortest path finding Dijkstra’s Algorithm.
     Start with source. Set distance at other nodes to infinity (∞) but source
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com

Posted by on Feb 4, 2020 in Computers | 0 comments

28.a) Sixteen-bit messages are transmitted using a Hamming code. How many check bits are needed to ensure that the receiver can detect and correct single-bit errors? (b) Show the bit pattern transmitted for the message 1101001100110101. Assume that even parity is used in the Hamming code.
a) Parity bits are needed at positions 1, 2, 4, 8, and 16 for messages that do not extend beyond 31 bits (including the parity bits). Our message has 16 data bits and 5 parity bits, for a total of 21 bits.
b. We
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