Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?()A、The size of the shared pool is too small.B、Cursors are not being shared.C、A larg

题目

Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?()

  • A、The size of the shared pool is too small.
  • B、Cursors are not being shared.
  • C、A large number COMMITS are being performed.
  • D、There are frequent logons and logoffs.
  • E、The buffers are being read into the buffer cache, but some other session is changing the buffers.

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  • 第1题:

    若一个栈以向量V[1..n]存储,初始栈顶指针top设为n+1,则元素x进栈的正确操作是()。

    A.top++;V[top]=x;

    B.V[top]=x;top++;

    C.top--;V[top]=x;

    D.V[top]=x;top--;


    参考答案:C
    解释:初始栈顶指针top为n+1,说明元素从数组向量的高端地址进栈,又因为元素存储在向量空间V[1..n]中,所以进栈时top指针先下移变为n,之后将元素x存储在V[n]。

  • 第2题:

    View the Exhibit to examine the Automatic SQL Tuning result details.Which action would you suggest for the selected SQL statement in the Exhibit?()

    A. Accept the recommended SQL profile.

    B.Collect statistics for the related objects.

    C. Run the Access Advisor for the SQL statement.

    D. Run the Segment Advisor for recommendations.


    参考答案:C

  • 第3题:

    在一个栈顶指针为top的链栈中删除一个结点时,用x保存被删除的结点,应执行()。

    Ax=top->data;top=top->next;

    Btop=top->next;x=top;

    Cx=top;top=top->next;

    Dx=top->data;


    A

  • 第4题:

    Which of the following is not considered a common approach to narrow the field of potentialproblem causes? (Choose the best answer.)()

    • A、Following the traffic path
    • B、Top-down
    • C、Comparing configurations
    • D、Bottom-up
    • E、Divide and conquer
    • F、Examine SLAs

    正确答案:F

  • 第5题:

    从栈顶指针为top的链栈中删除一个结点,用x保存被删除结点的值,则执行()。

    • A、x=top;top=top->next;
    • B、x=top->data;
    • C、top=top->next;x=top->data;
    • D、x=top->data;top=top->next;

    正确答案:D

  • 第6题:

    实现左上,右上圆角,左下和右下直角以下写法正确的是()。

    • A、border-radius:0px 0px 5px 5px
    • B、border-top-left-radius:5px;border-top-right-radius:5px;
    • C、border-left-top-radius:5px;boder-right-top-radius:5px;
    • D、border-radius:5px 5px 0px 0px;

    正确答案:B,D

  • 第7题:

    设top是一个链栈的栈顶指针,栈中每个结点由一个数据域data和指针域next组成,设用x接收楼顶元素,则出栈操作为()。

    • A、x=top->data;top=top->next;
    • B、top=top->next;x=top->data;
    • C、x=top->next;top=top->data;
    • D、top->next=top;x=top->data;

    正确答案:A

  • 第8题:

    设top是一个链栈的栈顶指针,栈中每个结点由一个数据域data和指针域next组成,设用x接收栈顶元素,则出栈操作为()。

    • A、x=top->data;top=top->next;
    • B、top=top->next;x=top->data;
    • C、x=top->next;top=top->data;
    • D、top->next=top;x=top->data;

    正确答案:A

  • 第9题:

    You are the network administrator for You administer a Windows Server 2003 computer named TestKing5. The hardware vendor for TestKing5 notifies you that a critical hotfix is available. This hotfix is required for all models of this computer that have a certain network interface card. You need to find out if the network interface card that requires the hotfix is installed in TestKing5. What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)()

    • A、Open Network Connections, and then examine the properties of each connection that is listed.
    • B、Open the Component Services snap-in, expand Computers, expand My Computer, and then examine the list.
    • C、Run the netsh interface command, and then examine the list.
    • D、Open Device Manager, expand Network adapters, and then examine the list.

    正确答案:A,D

  • 第10题:

    单选题
    链式栈结点为:(data,link),top指向栈顶.若想摘除栈顶结点,并将删除结点的值保存到x中,则应执行操作()。
    A

    x=top->data;top=top->link;      

    B

    top=top->link;x=top->link;     

    C

    x=top;top=top->link;        

    D

    x=top->link;


    正确答案: D
    解析: x=top->data将结点的值保存到x中,top=top->link栈顶指针指向栈顶下一结点,即摘除栈顶结点。

  • 第11题:

    多选题
    Examine the details of the Top 5 Timed Events in the following Automatic Workloads Repository (AWR)report:What are three possible causes for the latch-related wait events?()
    A

    The size of the shared pool is too small.

    B

    Cursors are not being shared.

    C

    A large number COMMITS are being performed.

    D

    There are frequent logons and logoffs.

    E

    The buffers are being read into the buffer cache, but some other session is changing the buffers.


    正确答案: B,C
    解析: 暂无解析

  • 第12题:

    单选题
    以下()语句从表student中提取前5条记录。
    A

    select * from student where rowcount=5

    B

    select TOP of 5*from student

    C

    select TOP5 * from student

    D

    select * from student where rowcount<=5


    正确答案: C
    解析: 暂无解析

  • 第13题:

    正常情况下,添加一个顺序存储结构的堆栈的栈顶元素,栈顶指针top的变化是()。

    A、top不变

    B、top=0

    C、top=top+1

    D、top=top-1


    参考答案:C

  • 第14题:

    若一个栈以向量V[1..n]存储,初始栈顶指针top为n+1,则下面x进栈的正确操作是()。

    A.top=top+1;V[top]=x

    B.V[top]=x;top=top+1

    C.top=top-1;V[top]=x

    D.V[top]=x;top=top-1


    正确答案:C

  • 第15题:

    HTML5中,()元素经常与details元素配合使用,作为details元素的第一个子元素。

    • A、nav
    • B、header
    • C、summary
    • D、footer

    正确答案:C

  • 第16题:

    若一个栈以向量V[1..n]存储,初始栈顶指针top设为n+1,则元素x进栈的正确操作是()。

    • A、top++; V[top]=x;
    • B、V[top]=x; top++;
    • C、top--; V[top]=x;
    • D、V[top]=x; top--;

    正确答案:C

  • 第17题:

    对一个栈顶指针为top的链栈进行出栈操作,用变量e保存栈顶元素的值,则执行()。

    • A、e=top->next;top->data=e;
    • B、top=top->next;e=top->data;
    • C、e=top->data;top=top->next;
    • D、top=top->next;e=data;

    正确答案:C

  • 第18题:

    下面对于margin定义不正确的是()。

    • A、margin-top:5%
    • B、margin-bottom:5px
    • C、margin-top:10px
    • D、margin-color:#f00

    正确答案:D

  • 第19题:

    在一个栈顶指针为top的链栈中,将一个p指针所指的结点入栈,应执行()。

    • A、 p->next=top;top=p;
    • B、 top->next=p;
    • C、 p->next=top->next;top=top->next;
    • D、 p->next=top->next;top->next=p;

    正确答案:A

  • 第20题:

    Your alert log file has the following information: Tue May 25 17:43:38 2004  ORA-00060: Deadlock detected. More info in file  /u01/app/oracle/admin/ORCL/udump/orcl_ora_3173.trc.  What would you do to ensure that database is still running correctly?()

    • A、examine the trace file and kill the session that caused the deadlock
    • B、examine the trace file and kill both the sessions responsible for the deadlock
    • C、examine the trace file for details and ask the user who caused the deadlock to roll back the transaction
    • D、examine the trace file for details and remember that deadlocks are resolved automatically by Oracle database
    • E、examine the trace file for details and use the Undo Advisor to rollback the transaction that caused the deadlock

    正确答案:D

  • 第21题:

    单选题
    View the Exhibit and examine the details of the EMPLOYEES table.  The query was written to format the PHONE_NUMBER for the employees.   Which option would be the correct format in the output?()
    A

     xxx-xxx-xxxx

    B

     (xxx) xxxxxxx

    C

     (xxx) xxx-xxxx

    D

     xxx-(xxx)-xxxx


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    顺序栈S中top为栈顶指针,指向栈顶元素所在的位置,elem为存放栈的数组,则元素e进栈操作的主要语句为()。
    A

    s.elem[top]=e;s.top=s.top+1;

    B

    s.elem[top+1]=e;s.top=s.top+1;

    C

    s.top=s.top+1;s.elem[top+1]=e;

    D

    s.top=s.top+1;s.elem[top]=e;


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    在一个栈顶指针为top的链栈中删除一个结点时,用x保存被删除的结点,应执行()。
    A

    x=top->data;top=top->next;

    B

    top=top->next;x=top;

    C

    x=top;top=top->next;

    D

    x=top->data;


    正确答案: C
    解析: 暂无解析

  • 第24题:

    单选题
    Examine the following command:ALTER SYSTEM SET enable_ddl_logging=FALSE;Which statement is true?()
    A

    None of the data definition language (DDL) statements are logged in the trace file.

    B

    Only DDL commands that resulted in errors are logged in the alert log file.

    C

    A new log.xml file that contains the DDL statements is created, and the DDL command details are removed from the alert log file.

    D

    Only DDL commands that resulted in the creation of new database files are logged.


    正确答案: D
    解析: 暂无解析