题目

When installing a security system, which of the following connectors would be used to connect the security system to the telephone service demarcation?()

A、RJ-31x

B、RJ-11

C、RS-232

D、DB-9

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有以下程序: #include  main() {  int k=-17;   printf("%d,%o,%x",k,1-k,1-k); } 程序的运行结果是(  )。

A、-17,22,12

B、-17,12,22

C、-17,-22,-l2

D、17,22,12

When installing cables, which of the following is the BEST way of identifying the individual cables?()

A、A cable chart mounted in the cabinet

B、A label at the tip of the cable

C、A label within six inches at each end of the cable

D、A penciled notation on the panel cover

You explicitly specified the tablespace usage threshold values while creating a tablespace. You need to revert to the database-wide default tablespace usage threshold values for the tablespace. Which PL/SQL package would you use?()

A、DBMS_STATS 

B、DBMS_ALERT 

C、DBMS_SPACE 

D、DBMS_MONITOR 

E、DBMS_SERVER_ALERT

F、DBMS_SPACE_ADMIN

若有定义int a;float b;double c;程序运行时输入:3 4 5能把值3输入给变量a、4输入给变量b、5输入给变量C的语句是(  )。

A、scanf("%lf%lf%lf",&a,&b,&c);

B、scanf("%d%lf%lf",&a,&b,&c);

C、scanf("%d%f%f",&a,&b,&c);

D、scanf("%d%f%lf",&a,&b,&c);

Which are the three levels at which the Segment Advisor generates advice?()

A

block level 

B

object level 

C

schema level 

D

segment level 

E

tablespace level

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