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State about CSMA/CA
It belongs to a class of protocols known as multiple access methods. CSMA/CA stands for: Carrier Sense Multiple Access with Collision Avoidance. In CSMA, a station willing to transmit has to first listen to channel for a predetermined amount of time so as to check for any activity on channel. If channel is sensed "idle" then station is permitted to transmit. If channel is sensed as "busy" station has to defer its transmission. This is essence of both CSMA/CD and CSMA/CA. In CSMA/CA (Local Talk), once channel is clear, a station transmits a signal telling all other stations not to transmit, and then sends its packet. In Ethernet 802.3, station continues to wait for a time, and checks to see if channelis still free. If it is free, station transmits, and waits for an acknowledgment signal that packet was received.
Write short notes on Event Model.
Differentiate between exception and validation testing. - Validation testing is done to test the software in conformance to the needs specified. It aims to demonstrate that the
Define swapping. A process needs to be in memory to be implemented. Though a process can be swapped temporarily out of memory to a backing store and then brought back into mem
write algorithm and draw flowchart for exchange the values of two variables.
Image Capturing Download the following grey level 512x512 standard images in TIF format: a-Lena b-Baboon c-Bridge d-Airfield Use Matlab to decrease the siz
Accessibility testing for web sites is a service that can give much more than the standard point-by-point testing methods of most automated services.
Define the node of object oriented modeling A node is a physical element which exists at runtime and represents a computational resource usually having a large memory and often
example pumping lemma.
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Creation Deductive Inferences : Here we have shown how knowledge can be represented in first-order logic or how rule-based expert systems expressed in logic can be constructed
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