The address space basically define the memory allocation for all the computational entity. It is basically define in the specific range in the memory which is available in the program.
The memory can be allocated in the resources like file, devices and server. In the address space the memory can be used either virtually or physically for executing the given instruction and storing the data in the system.
The main advantages and costs of the address space are that:
The simplifies the data migration and also the process migration the system.
It is easy to implement the zero cop.
It basically eliminate the copying of the data from the memory.
The cost increase as the traditional operation system used a individual address space in the each processing.
The small organization majorly face the problem of addressing and it also reduce the stability of the company and organization.
Well knowing how the government is with security id go with A. as it makes a lot of sense unlike B and D and if they were looking for software the question would mention it
