To allow programs to access and execute operating system instructions, operating systems provide ________.
A) the executive mode of execution
B) system calls
C) memory protection keys
D) both a and b
Correct Answer:
Verified
Q10: Noncontiguous memory allocation splits programs into blocks
Q11: Before the advent of _, programmers wrote
Q12: _ is a technique that involves breaking
Q13: _ can be thought of as a
Q14: A(n) _ can be used in single-user
Q16: _ was an early innovation that helped
Q17: A _ reads and executes the control-language
Q18: Under fixed-partition multiprogramming, _ occurs when a
Q19: In a partitioned memory environment, the single
Q20: _-partition multiprogramming allows a process to occupy
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