Asystem consists of 4 domains, d1 through d4, and 3 objects, o1 through o3. processes in the 4 domains need to access the resources as follows: d1 owns, reads, writes, and executes o1 d1 reads and executes o3 d2 reads and writes o1 d2 owns, reads, writes, and executes o2 d3 executes o2 d4 reads o1 d4 reads o2 d4 owns, reads, writes, and executes o3 (a) show the necessary permissions as access lists. (b) show the necessary permissions as capability lists. (c) assume that all x-rights are marked with the c-right. determine in which domain a process can enable processes in domain d1 to: read o2 execute o2

You need to design a circuit that implements the functions in the following table: s0 s1 function0 0 a + 10 1 a – b1 0 a + b1 1 a – 1s0 and s1 are 1-bit control inputs to select the function of the circuit. inputs a and b are 4-bitnumbers in 2s complement form. the output is also a 4-bit number in 2s complement form.you are allowed to use only one ttl 7483 4-bit adder to implement all the functions. but anynumber of other components (except the adder) can be used.hint: design a combinational logic circuit to modify the input b and the “carry input” of theadder depending on the control inputs s0 and s1.important: lab grade will depend on the working of the circuit & will be checked of by your labinstructor.1. is the output valid for the following input combinations: a. s0 = 0, s1 = 0, a = 7, b = 3? b. s0 = 0, s1 = 1, a = 7, b = 3? c. s0 = 1, s1 = 0, a = -4, b = -5? d. s0 = 1, s1 = 1, a = -8, b = 6? 2. what is the range of inputs (for both a and b) that will produce the valid output for all the functions?