(a) Name FOUR techniques for memory management. (b) What is overlaying in program execution? Give an example for the overlaying operation. (c) A page table of a process is shown in Table 1. Translate the logical addresses in (i) and (ii) into their corresponding physical address and determine if the addresses are valid address or not. Given that the process has the following parameters in its address calculation: starting address = 2400, bound address = 3600 and page size = 400 bytes. (i) Logical address (ii) Logical address (d) Explain thrashing in a virtual memory scheme. (e) A computer system has a main memory module of 4 Gbytes in size and a process of 10 Gbytes in size is going to be executed in the system. Suggest a method to successfully execute the process