- 讲师:刘萍萍 / 谢楠
- 课时:160h
- 价格 4580 元
特色双名师解密新课程高频考点,送国家电网教材讲义,助力一次通关
配套通关班送国网在线题库一套
A、AG
B、IP PBX
C、IAD
D、SIP GW
A分组封装帧
B帧封装分组
C分组封装报文
D报文封装分组
A.释放应答报文
B.连接建立报文
C.紧急数据报文
D.捎带应答报文
A、many-to-one?
B、one-to-many?
C、one-to-one??
D、many-to-many
A.变更取消仅邮件通知业务人员
B.提前发起变更申请确认变更时间
C.通知业务相关人员做好业务启停准备
D.提前准备好变更失败的回退操作
A.3次握手
B.端口机制
C.自动重发
D.滑动窗口协议
A、extrude
B、lathe
C、bevel
D、bevel profile
A、快捷检查
B、调度检查
C、基线管理
D、离线检查
A、SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)
FROM EMPLOYEES GROUP BY JOB_ID
HAVING AVG(SALARY) >3000;
B、SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)
FROM EMPLOYEES GROUP BY JOB_ID ,DEPARTMENT_ID
HAVING AVG(SALARY) >3000;
C、SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)
FROM EMPLOYEES GROUP BY AVG(SALARY)
HAVING AVG(SALARY) >3000;
D、SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)
FROM EMPLOYEES GROUP BY JOB_ID , DEPARTMENT_ID
HAVING SALARY >3000;
A.传输层
B.网络层
C.LLC子层
D.MAC子层
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