Question 1. (30 Points) A system consists of a main memory and one cache memory, the cache size is 16K lines, the main memory is addressable by word where the word size is 8 bit, and the block size is 4 words. a. Using direct mapping, if the format of the main memory address is Tag Line Word Main memory address = 8 bits 14 bits bits what is the tag and line number (in hex) of this address: 1001-0110-0011-1111-1010-1001? b. Using set-associative with N way sets, if the format of the address: Main Memory Address Tag Set Word 18 4 bits 2 bits 1. How many sets do we have in this system? 2. How many lines in each set? 3. What is the tag and the set number for the following address in hex? 1010-0111-1001-1011-1010-1100