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RAID level _______ requires three or more hard drives because one drive always contains parity data used to rebuild a failed drive

Fill in the blank(s) with correct word

Answer the following statements true (T) or false (F)

1) The set container implements only iterator. 2) Order of magnitude estimates don’t work well if we are interested in behavior for small data sets. 3) Nonmodifying sequence algorithms do not change the elements in the containers they work on. 4) Insertion into a vector runtime is O(1) at any position in the vector. Explain what ‘runtime is O(1)’ means.