又到期末，求大神解救！操作系统！@问问文文yyw

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.What state is a process in when it can not run because it needs a resource to become available?
A:Ready
B:Interrupt
C:Blocked
D:Running

What refers to the page replacement algorithm which replaces the page that has not been used for the longest period of time?
A:FIFO
B:LRU
C:OPT
D:LFU

7.Which of the followings is not a condition for deadlock?
A:Starvation
B:Circular Wait
C:No Preemption
D:Mutual Exclusion

.Which of the following strategies doesn't need base register and length register?
A:paging
B:segmentation
C:segmentation with paging
D:fixed sized partitions memory management

Which kind of operating systems has well defined,fixed time constraints?
A:real time
B:time sharing
C:batch system
D:network system

When a process changes state, which of the following conversion will not occur?
A:Ready to Running
B:Running to Ready
C:Running to Waiting
D:Waiting to Running

Using rund robin scheduling algorithm, if the CPU burst of the currently running process is longer than 1 time quantum, which statement is wrong?
A:the process itself will release the CPU voluntarily
B:The time will go off and will cause an interrupt to the operating system.
C:A context switch will be executed,and the process will be put the tail of the ready queue.
D:The CPU scheduler will then select the next process in the ready queue.

Preemption allocation strategies can be applied to?
A:Memory management
B:CPU management
C:I/O system management
D:Tape drives management

when system call takes place, there are several general methods are used to pass parameters between a running program and the operating system, except?
A:Pass parameters in registers
B:Store the parameters in a table in memory, and the table address is passed as a parameter in a register.
C:Share auto variable values with operating system
D:Push /store the parameters onto the stack by the program, and pop off the stack by operating system.

.In UNIX, which system call can create a process?
A:pthread_create
B:process_create
C:fork
D:exit

Solution to critical section problem must satisfy several requirements except?
A:no preemption
B:Bounded Waiting
C:Mutual Exclusion
D:Progress

Which disk scheduling may cause starvation?
A:FCFS(先来先服务)
B:SSTF(下一个为离自己最近的)
C:SCAN
D:C_SCAN