CMS专题
单选题While performing a preventative maintenance check on a personal computer, a technician notices thatseveralunused expansion card slots have open ports. Which of the following BEST describes why the covers for these card slots should be reinstalled?（）A H
题目
Help limit radio frequency interference (RFI) inside the case.
Help ensure proper air flow through the case.
Help prevent moisture buildup in the case.
Help limit electrostatic discharge (ESD) inside the case.
相似问题和答案
第1题：
此题为判断题(对，错)。
第2题：
英译中：I’ll send maintenance to your room to check it right away. He will be here in a few minutes.
正确答案:我马上派一名维修工到您房间检查一下，他马上就到。
第3题：
A、BP
B、T
C、P
D、R
第4题：
While performing LVM maintenance， the volume group datavg1 was exported and re-imported. The volume group is varied online， and the filesystems have been mounted. However， the database will not start. What action would most likely resolve this problem？（）
- A、 Perform a shown command on the VG device files.
- B、 Perform a syncvg to validate VG integrity.
- C、 Perform a redfinevg to correct the VGDA state.
- D、 Perform a synchlvodm to correct the LV ownership.
正确答案:A
第5题：
When is it advisable to dump the waste toner from a technicians service vacuum？（）
- A、When it is full.
- B、It is not recommended.
- C、Before performing preventative maintenance.
- D、After each call.
正确答案:B
第6题：
有如下程序： Private Sub Form Click() Dim Check，Counter Check=True Counter=0 Do Do While Counter＜20 Counter=Counter+1 If Counter=10 Then Check=False Exit Do End If Loop Loop Until Check=False Print Counter，Check End Sub 程序运行后，单击窗体，输出结果为
A．15 0
B．20 -1
C．10 Tree
D．10 False
解析：本题考查嵌套的Do…Loop循环。Do循环嵌套的规则与For-Next循环相同，按照先进后出、后进先出的原则，不能交叉。考生需判断程序在何时跳出循环，内层循环是在Counter20时，对其加1，但要注意循环内的条件语句，当Counter=10时，跳出内层循环，同时将Check设为False。外层循环的循环条件是Check=False，所以当程序跳出内层循环时，外层循环的条件也满足了，故同时也跳出循环，此时Counter=10，Check为False，选项D正确。
第7题：
You are the network administrator for All network servers run Windows Server 2003. Recently, another network administrator create a scheduled task to perform a normal backup of Microsoft Exchange Server 2003 compuer every Saturday night. You need to perform maintenance tasks on the Exchange server on this Saturday night only. If the backup starts while you are performing the maintenance tasks,data might be corrupted. You need to ensure that the backup task does not start while you perform the maintenance tasks. What are two possible ways to achieve this goal? (Each correct answer presents a complete solution.（）Choose two.)
- A、In the Backup utility, clear the Enabled (scheduled tasks runs at specified time) check box.
- B、In Control Panel, use Scheduled Tasks to pause Task Scheduler.
- C、Run the Schtasks command with the /end /p parameters.
- D、Use the Services snap-in to change the startup type of the Task Scheduler service from Automatic to Manual.
正确答案:A,B
第8题：
下列程序段的输出结果为______。
Check = True: a = 1
Do
a = a + 1
Check = Check + 1
Loop While a ＜ 10
print Check
8
第9题：
While performing a preventative maintenance check on a personal computer, a technician notices thatseveralunused expansion card slots have open ports. Which of the following BEST describes why the covers for these card slots should be reinstalled?（）
- A、Help limit radio frequency interference (RFI) inside the case.
- B、Help ensure proper air flow through the case.
- C、Help prevent moisture buildup in the case.
- D、Help limit electrostatic discharge (ESD) inside the case.
正确答案:B
第10题：
After rebooting the machine, Companycom notices that the machine is not performing as well as before. The applications are running slower, and their CPU utilization has increased. How can the customer check to see if a CPU was deallocated?（）
- A、Run the vmstat command
- B、Run the iostat command
- C、Run the lparstat command
- D、Check the logs in the /var/adm/ras directory
正确答案:C