* Using the following access matrix tell if the asked operations is allowed or denied. P1 which runs in D1 domain attempts to read F3 P1 which runs in D1 domain attempts to print using laser printer P1 which runs in D1 domain attempts to execute F3 object F F2 F3 laser printer D D2 D3 DA domain D read read switch D2 print switch switch D3 read execute D4 read write read write switch