Consider the following program segment. ifstream inFile; //Line 1 int x, y; //Line 2 ... //Line3 inFile >> x >> y; //4 Which of the following statements at Line 3 can be used to open the file progdata. dat and input data from this file into x and y at Line 4?

Acomputer has a two-level cache. suppose that 60% of the memory references hit on the first level cache, 35% hit on the second level, and 5% miss. the access times are 5 nsec, 15 nsec, and 60 nsec, respectively, where the times for the level 2 cache and memory start counting at the moment it is known that they are needed (e. g., a level 2 cache access does not even start until the level 1 cache miss occurs). what is the average access time?