To control the execution of a server process when it is receiving bad packets from a potentially malicious client, you set the SEC_PROTOCOL_ERROR_FURTHER_ACTION initialization parameter as follows:SQL> ALTER SYSTEM SET SEC_PROTOCOL_ERROR_FURTHER_ACTION =

题目

To control the execution of a server process when it is receiving bad packets from a potentially malicious client, you set the SEC_PROTOCOL_ERROR_FURTHER_ACTION initialization parameter as follows:SQL> ALTER SYSTEM SET SEC_PROTOCOL_ERROR_FURTHER_ACTION = Drop,10;What is the significance of this setting?（）

A. It terminates the client connection after 10 bad packets and the client cannot reconnect to the same instance.

B. It terminates the client connection after 10 bad packets but the client can still reconnect, and attempt the same operation again.

C. It terminates the client connection 10 seconds after receiving a bad packet and the client cannot reconnect to the same instance.

D. It terminates the client connection after receiving a bad packet and the client can reconnect to the same instance after 10 minutes.

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更多“To control the execution of a server process when it is receiving bad packets from a poten ”相关问题

  • 第1题：

    下列哪个选项是对RPA模块的组成描述最最完善的()。

    A.Control控制端

    B.Server服务端

    C.Robot机器人代理端

    D.以上三部分都是


    答案：ABCD

  • 第2题：

    A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication; TCP uses port (71) to accomplish this. Another responsibility of a transport layer protocol is to create a (72) and error-control mechanism at the transport level. TCP uses a sliding (73) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve (74) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends (75) of data to the transport layer. It is the responsibility of the transport layer at the sending station to make a connection with the receiver.

    （71）

    A．numbers

    B．connections

    C．diagrams

    D．resources


    正确答案：A

  • 第3题：

    关于数据封装的顺序()是正确的。

    A.DatA.segments-packets-frames-bits

    B.DatA.packets-segments-frames-bits

    C.DatA.frames-segments-packets-bits

    D.DatA.segments-frames-packets-bits


    参考答案：A

  • 第4题：

    检索“投中3分球”小于等于5个的运动员中“得分”最高的运动员的“得分”，正确的SQL语句是（ ）。

    A.SELECT MAX(得分)FROM运动员WHERE投中3分球<=5

    B.SELECT MAX(得分)FROM运动员WHEN投中3分球<=5

    C.SELECT得分MAX(得分)FROM运动员WHERE投中3分球<=5

    D.SELECT得分MAX(得分)FROM运动员WHEN投中3分球<=5


    正确答案：A
    A。【解析】本题选项B中，应使用WHERE；选项C和D中，MAX函数的使用错误。

  • 第5题：

    检索“投中3分球”小于等于5个的运动员中“得分”最高的运动员的“得分”，正确的SQL语句是（ ）。

    A)SELECT MAX(得分)FROM运动员WHERE投中3分球<=5

    B)SELECT MAX(得分)FROM运动员WHEN投中3分球<=5

    C)SELECT得分MAX(得分)FROM运动员WHERE投中3分球<=5

    D)SELECT得分MAX(得分)FROM运动员WHEN投中3分球<=5


    正确答案：A
    求最大值的函数是MAX，使用计算函数后，会改变原来的用于计算的字段名，如果要指定新的字段名，可以在该计算函数后通过AS短语指定新的字段名，也可以省略AS短语直接输入新字段名做为输出显示的字段名称。本题选项C)和D)中，使用计算函数的表达方式错误；而选项B)中，条件短语的关键字出错，应该是WHERE，而不是WHEN。

  • 第6题：

    The underlined word“penalty”is closest in meaning to__________．

    A.punishment
    B.trial
    C.accusation
    D.execution

    答案：A
    解析：
    根据该句“In the first place，some state laws provide a death penalty but some not．(首先，一些州有关于死刑的惩罚措施而另一些州没有。)”，可知penalty意为“处罚，惩罚”。

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