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Computer The Database Environment Difficulty: Medium

Which type of exception is raised by computer hardware when a code tries to access a block of memory that is not stored in physical memory? The ........... function is used to read a single character from a file. What will be the output of the following Python code? def f1(x): global x x+=1 print(x) f1(15) print("hello") How many types of filtering are present in PHP? What will be the output of the following C++ code? #include <iostream> #include <vector> using namespace std; int main () { vector<int> myvector; int sum (0); myvector.push_back (100); myvector.push_back (200); myvector.push_back (300); while (!myvector.empty()) { sum += myvector.back(); myvector.pop_back(); } cout << sum << '\n'; return 0; }