Assume a fully associative write-back cache with many cache entries that start empty. Below is a sequence of eleven memory operations (the address is in square brackets): Read Mem[50] Write Mem[50] Write Mem[500] Read Mem[500] Write Mem[100] Read Mem[500] Write Mem[200] Read Mem[250] Write Mem[500] Write Mem[100] Read Mem[100]