While Monitoring the space usage in your database that is in ARCHIVELOG mode you observed that the flash recovery area does not have enough free space to accommodate any more files and you do not have necessary permissions to add more space to it. Identify the two events that can occur in the event of a log switch？（）
第1题：
第2题：
while与do－while相比较，描述正确的是（）。
第3题：
下列写法中等价的是( )。
A．若x=1,while(x!=x)与while(x)
B．若x=0,while(x!=x)与while(x)
C．若x=1,while(x!=0)与while(!x)
D．若x=0,while(x==0)与while(x)
第4题：
What is one of the primary overhead fields associated with the Optical Payload Unit （OPU）？（）
第5题：
应急监测（emergency monitoring）
第6题：
while(a)等价于（）
第7题：
下面关于while及do-while说法中，描述正确的是（）
第8题：
The idea for the new project came to Jack ______ to his study recently.
A. while devoting
B. while devoting himself
C. while he was devoted
D. while devoted
第9题：
What is the final step of the core baselining process?（）
第10题：
Network management saves time and money by automating which two tasks? （）