软件设计中模块划分应遵循的准则是（ ）。
A、低耦合低内聚
B、高耦合高内聚
C、低耦合高内聚
D、内聚与耦合无关
The session of user SCOTT receives the following error after executing an UPDATE command on the EMPtable： ERROR at line 1： ORA-00060： deadlock detected while waiting for resource On investigation， you find that a session opened byuser JIM has a transaction that caused the deadlock. Which two statements are true regarding the session ofSCOTT in this scenario（）
AThe session is terminated after receiving the error and JIM can continue with his transaction.
BSCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.
CThe session is rolled back after receiving the error and JIM can continue with his transaction.
DSCOTT has to reexecute the last command in the transaction after he commits the transaction.
如果一个域控制器关机或出故障其他的域控制器能够提供所有的功能。
A、对
B、错
无线传播环境衰弱方式包括：（）
A、慢衰弱
B、阴影衰弱
C、快衰弱
D、以上三个都是
Which of the following connector types is used on CAT5e cable?（）
A、RJ-45
B、ST
C、RJ-11
D、BNC
线缆接头、接地卡做防水抱扎，要按顺序紧密缠绕绝缘胶带和防水胶带（采用3X3处理，即3层绝缘+3层防水+3层绝缘），馈线抱扎后擦启用扎带将抱扎处固定后涂上硅胶。（）
A、对
B、错