A system administrator boots a server in normal mode, the boot process displays and LED 551 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:()
A.The bosboot command failed to complete.
B.The JFS log device is corrupted.
C.The initttab file is corrupted.
D.The /dev entries or /etc files are missing.
第1题:
11.classA{12.publicvoidprocess(){System.out.print(”A);}}13.classBextendsA{14.publicvoidprocess()throwsRuntimeException{15.super.process();16.if(true)thrownewRuntimeException();17.System.out.print(B”);}}18.publicstaticvoidmain(String[]args){19.try{((A)newB()).process();}20.catch(Exceptione){System.out.print(”Exception);}21.}Whatistheresult?()
A.Exception
B.AException
C.AExceptionB
D.ABException
E.Compilationfailsbecauseofanerrorinline14.
F.Compilationfailsbecauseofanerrorinline19.
第2题:
第3题:
如果GPIO端口接LED,那么比较合适配置模式是()
A.GPIO_Mode_Out_OD开漏输出
B.GPIO_Mode_Out_PP推挽输出
C.GPIO_Mode_AF_OD复用开漏输出
D.GPIO_Mode_AF_PP复用推挽输出
第4题:
11.classa{12.publicvoidprocess(){System.out.print(”a,”);}}13.classbextendsa{14.publicvoidprocess()throwsIOException{15.super.process();16.System.out.print(”b,”);17.thrownewIOException();18.}}19.publicstaticvoidmain(String[]args){20.try{newb().process();}21.catch(IOExceptione){System.out.println(”Exception”);}}Whatistheresult?()
A.Exception
B.a,b,Exception
C.Compilationfailsbecauseofanerrorinline20.
D.Compilationfailsbecauseofanerrorinline14.
E.ANullPointerExceptionisthrownatruntime.
第5题:
关于os库,以下选项中可以启动进程执行程序的函数是:
A.os.run()
B.os.start()
C.os.process()
D.os.system()
第6题:
SDF文件头部中,PROCESS指的是表示此 SDF 文件中()状态数值所乘上的 factor
A.best
B.norma
C.worst
D.normal