Consider the postings list h4, 10, 11, 12, 15, 62, 63, 265, 268, 270, 400 with a corresponding list of gaps h4, 6, 1, 1, 3, 47, 1, 202, 3, 2, 130. assume that the length of the postings list is stored separately, so the system knows when a postings list is complete. using variable byte encoding: (i) what is the largest gap you can encode in 1 byte? (ii) what is the largest gap you can encode in 2 bytes? (iii) how many bytes will the above postings list require under this encoding?

You have a small company and want to keep your costs low, but it is important your employees share data. which network would provide you with the most economical solution?

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?

language consists of basic components, and they are called a. 3; mental images, concepts, and speech b. 2; language acquisition and linguistic relativity c. 3; heuristics, algorithms, and analogies d. 4; phonemes, morphemes, syntax, and semantics e. 2; words and grammar