George wants to use the microsoft query feature to gather data from an access file named “customer sales.” in his excel file, he clicks the data tab, clicks “get external data,” clicks “from other sources,” and then chooses “from sql server.”

what error did george make?

a. he should have started in the formulas tab instead of the data tab.
b. he should have opened the access file instead of the excel file to start the query.
c. he should have clicked “existing connections” instead of “from other sources.”
d. he should have chosen “from microsoft query” instead of “from sql server.”

Jason needs to learn a new web tool. he went through his books to understand more about it. now he wants hands-on experience with using that tool. what would him? jason can use websites where workspace is provided to test the results of your code.

The option enables you to modify a slide element in most presentation applications.

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?