The mechanism that is executed at certain privilege levels, determined by CPL (Current Privilege Level) and I/O privilege level (IOPL) is
A. restricted use of segments
B. restricted accesses to segments
C. privileged instructions or operations
D. none of the mentioned
Answer:A
The mechanism that is executed at certain privilege levels, determined by CPL (Current Privilege Level) and I/O privilege level (IOPL) is
A. restricted use of segments B. restricted accesses to segments C. privileged instructions or operations D. none of the mentioned
Explanation: The privileged instructions or operations, also called, privileged instruction check, is executed at certain privilege levels, determined by CPL and I/O privilege level(IOPL), as defined by the flag register.