Can the interrupt handling system make a computer more vulnerable to the dangers of malware (e.g., a virus)? If so, how and why?
What will be an ideal response?
In principle, yes. The aim of malware is to take over a computer, which means that control must be passed to the malware by either a branch or an exception. When an interrupt occurs, the computer is usually vectored to the appropriate exception handler. The malware writer can introduce the harmful code into memory, set up a vector to it (in the exception vector table), and then trigger the appropriate exception.
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Assuming that the functional dependencies in the relation in Figure 2 will hold for any additional data, which of the following functional dependencies are true and which are false? Justify your answer.
What is the longest copper cable length supported by the IEEE 802.3an 10 Gigabit Ethernet standard?
A) 100 meters B) 1 kilometer C) 100 feet D) 180 meters E) 180 feet
COGNITIVE ASSESSMENT When two people are conversing over the Internet in real time, what do you know about them?
A. They both are online. B. They are sending email messages that are not required to move through email servers. C. They are using FTP. D. They are behaving according to netiquette.
Some problems user support analysts study turn out to be organizational problems instead of technological problems.
Answer the following statement true (T) or false (F)