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Trap doors: This is a way of bypassing normal authentication procedure (windows/ operating system user name and password) to access a system. Once a system is compromised (impacted by) by malware, one or more backdoors may be installed for easier future access to the system.
Logic Bombs/ Time Bombs:
Logic Bombs are not programs in their own right but rather camouflaged segments of other programs. They are not considered viruses because they do not replicate. But their objective is to destroy data on the computer once certain conditions have been met. Logic bombs go undetected until launched, and the results can be destructive. For example, some malicious programs are sot off during days such as April Fools Day or Friday the 13th.
Access time: Access time: This is the time required to locate and retrieve stored data from the storage unit in response to a program instruction. That is the time interval be
QUESTION (a) Consider a system with input x[n] and output y[n] that satisfy the difference equation: Y[n] = x[n] + 0.5 x[n-2] + 0.2 x[n+1]
Hello i am a computer science student. now we are going to start our final project. we want to work on Google App Inventor and we want to create mobile application. we are two grou
function of arithmetic logic unit
I have an account in my www.itlab.com and i have a test and it should do tonight, so do you have any one to help me and do this test and it is about excel
Foundation of Computer System Q.No-1: What do you understand by the Efficiency in term of Computers? and How will you measure it? Also define Speed and its factors which ca
RANDOM ACCESS MEMORY (RAM): The RAM-type memory will allow data to be written into it, as well as read from it. With very few exceptions, RAMS lose their contents when the powe
Mobile telephone networks started with analog technology. Analog cellular networks were known as first generation (1G) networks. Such networks had limited capacity, and were subjec
disvange and advantege of providing intternet sservice to customer
THE MICROPROCESSOR The three fundamental units, which comprise a CPU, have now been discussed in general terms. So too has a microprocessor, because a microprocessor can be de
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