命令kill9的含义是()。A.kills the process whose PID is 9B.kills all processes belonging to UID 9C.sends SIGKILL to the process whose PID is 9D.sends SIGTERM to the process whose PID IS 9

题目

命令kill9的含义是()。

A.kills the process whose PID is 9

B.kills all processes belonging to UID 9

C.sends SIGKILL to the process whose PID is 9

D.sends SIGTERM to the process whose PID IS 9


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更多“命令kill9的含义是()。A.kills the process whose PID is 9B.kills all processes belonging to UID 9C.sends SIGKILL to the process whose PID is 9D.sends SIGTERM to the process whose PID IS 9”相关问题
  • 第1题:

    对于如下C语言程序 int main() { pid_t pid; int x=1; pid = fork(); if(pid==0) printf("I am the child process, x=%d\n", ++x); else printf("I am the parent process, x=%d\n", --x); } 在UNIX操作系统中正确编译链接后,其正确的运行结果是

    A.I am the child process, x=2

    B.I am the parent process, x=0

    C.I am the parent process, x=2

    D.I am the child process, x=0


    正确答案:A

  • 第2题:

    What is an advantage of multiple software processes running in the Junos OS?()

    A. Each process has its own protected memory space.

    B. Each process is started manually by the user at boot.

    C. All processes are dependent on each other.

    D. Multiple processes allow each routing protocol to be independent.


    参考答案:A

  • 第3题:

    某供应商关系模式为:

    Provider(PID,Pname,Tel,GoodsID,GoodsClassID,GoodsName,Good-sPrice)

    该关系模式应满足如下函数依赖:

    PID→Pname,PID→TEL,GoodsID→GoodsClassID,

    GoodsID→GoodsName,GoodsName→GoodsPrice

    则这个关系模式的主码为______。

    A) (PID,GoodsName)

    B) (PID,GoodsGlassID)

    C) (PID,GoodsI

    D)D) (PID,GoodsPric

    A.

    B.

    C.

    D.


    正确答案:C

  • 第4题:

    kill-02345(某pid)命令的返回码为非0,原因可能是()

    • A、该pid的进程不存在
    • B、该用户没有该pid的进程的权限
    • C、该pid的进程无法退出
    • D、该pid的进程正在睡眠中

    正确答案:A,B

  • 第5题:

    UNIX中强制删除进程的命令是()。

    • A、delete pid
    • B、kill -6 pid
    • C、kill -9 pid
    • D、del pid

    正确答案:C

  • 第6题:

    PID的含义是比例、积分和微分。


    正确答案:正确

  • 第7题:

    Which of the following processes are likely to be found in a microkernel?()

    • A、Lightweight messaging
    • B、Memory management
    • C、Hardware abstraction
    • D、Host stack
    • E、Process scheduling
    • F、All of the above

    正确答案:F

  • 第8题:

    What is an advantage of multiple software process running in the Junos OS?()

    • A、Each process has its own protected memory space
    • B、Each process is started manually by the user at boot
    • C、Aall processes are dependent on each other
    • D、Multiple processes allow each routing protocol to be independent

    正确答案:A

  • 第9题:

    数字PID控制算法分为()PID控制算法和()PID控制算法。


    正确答案:位置式;增量式

  • 第10题:

    当waitpid函数的pid参数设置为()表示等待任一子进程终止。

    • A、pid==-1
    • B、pid==0
    • C、pid>0
    • D、pid<-1

    正确答案:A

  • 第11题:

    单选题
    You wish to kill a process with a PID of 123. Select the command which exiting.()
    A

     kill-1 123

    B

     kill-9 123

    C

     kill-15 123

    D

     kill-17 123


    正确答案: C
    解析: 暂无解析

  • 第12题:

    问答题
    什么是数字PID调节器?PID的含义分别是什么?

    正确答案: 数字PID调节器:全称是比例微分积分调节器,是对被调量与给定值的偏差分别进行比例、微分和积分运算,取其和构成连续信号以控制执行器的模拟调节器。
    PID://P--比例,I--积分,D--微分。
    [P能迅速反应偏差,I与偏差的积分成正比,D能迅速地反映偏差的变化率]
    解析: 暂无解析

  • 第13题:

    The villagers,()had been destroyed by the flood, were helped by the Red Cross.

    A、all whose homes

    B、all of their homes

    C、all of whose homes

    D、all their homes


    参考答案:C

  • 第14题:

    What is an advantage of multiple software process running in the Junos OS?()

    A. Each process has its own protected memory space

    B. Each process is started manually by the user at boot

    C. Aall processes are dependent on each other

    D. Multiple processes allow each routing protocol to be independent


    参考答案:A

  • 第15题:

    The residents, ___________had been damaged by the flood, were given help by the Red Cross.

    A.all their homes
    B.all whose homes
    C.all of whose homes
    D.all of their homes

    答案:C
    解析:
    考查非限制性定语从句。句意为“那些房屋全部被洪水毁坏的居民得到了红十字会的救济”。两个逗号之间显然是一个非限制性定语从句,所以用关系代词whose指代the residents。因为whose后面接的是一个从句.所以要用代词all of而不用形容词all。正确答案为C。

  • 第16题:

    什么是数字PID调节器?PID的含义分别是什么?


    正确答案: 数字PID调节器:全称是比例微分积分调节器,是对被调量与给定值的偏差分别进行比例、微分和积分运算,取其和构成连续信号以控制执行器的模拟调节器。
    PID://P--比例,I--积分,D--微分。
    [P能迅速反应偏差,I与偏差的积分成正比,D能迅速地反映偏差的变化率]

  • 第17题:

    kill-08080命令的返回码为非0,原因可能是?()

    • A、该PID的进程不存在
    • B、用户没有该PID所属进程的权限
    • C、该PID的所属进程无法退出
    • D、该PID的所属进程正处于sleep状态

    正确答案:A,B

  • 第18题:

    Process-level redundancy is implemented by a system manager process that creates the standby process.What two functions are provided by the system-level process called Qnet Symlink Manager (QSM)?()

    • A、backing up the information for the broken connections
    • B、provides common information for connecting processes and services
    • C、detection of a failed connection
    • D、provides an abstract name for a process or service
    • E、distribution of symbolic link information

    正确答案:D,E

  • 第19题:

    You wish to kill a process with a PID of 123. Select the command which exiting.()

    • A、 kill-1 123
    • B、 kill-9 123
    • C、 kill-15 123
    • D、 kill-17 123

    正确答案:C

  • 第20题:

    What is an advantage of multiple software processes running in the Junos OS?()

    • A、Each process has its own protected memory space
    • B、Each process is started manually by the user at boot
    • C、All processes are dependent on each other
    • D、Multiple processes allow each routing protocol to be independent

    正确答案:A

  • 第21题:

    What is an advantage of multiple software processes running in the Junos OS?()

    • A、Each process has its own protected memory space.
    • B、Each process is started manually by the user at boot.
    • C、All processes are dependent on each other.
    • D、Multiple processes allow each routing protocol to be independent.

    正确答案:A

  • 第22题:

    单选题
    View the Exhibit and identify the component marked with a question mark. ()
    A

    Checkpoint (CKPT)

    B

    Process Monitor (PMON)

    C

    Archiver Processes (ARCn)

    D

    Recoverer Process (RECO)

    E

    Memory Manager process (MMAN)


    正确答案: C
    解析: 检查点‖是一种数据结构,用于定义数据库的重做线程中的系统更改号(SCN)。 检查点被记录在控制文件和每个数据文件头中。它们是恢复操作的关键元素。 出现检查点时,Oracle DB 必须更新所有数据文件的头,以记录该检查点的详细信息。这是由CKPT进程完成的。CKPT 进程不会将块写入磁盘;该工作都是由DBWn执行。文件头中记录的SCN 可保证将该SCN 之前对数据库块进行的所有更改写入到磁盘中。Oracle Enterprise Manager 中的SYSTEM_STATISTICS监视器将显示统计信息DBWR 检查点,由其指示已完成的检查点请求的数目。

  • 第23题:

    多选题
    Process-level redundancy is implemented by a system manager process that creates the standby process.What two functions are provided by the system-level process called Qnet Symlink Manager (QSM)?()
    A

    backing up the information for the broken connections

    B

    provides common information for connecting processes and services

    C

    detection of a failed connection

    D

    provides an abstract name for a process or service

    E

    distribution of symbolic link information


    正确答案: E,D
    解析: 暂无解析