You are at the top of the hierarchy and must configure OSPF on interface so-0/0/0 unit 100. Which two achieve this result?（）
Aset protocols set ospf area 0 set interface so-0/0/0.100
Bset protocols ospf area 0 interface so-0/0/0.100
Cedit protocols ospf interface so-0/0/0.100
Dedit protocols ospf area 0 set interface so-0/0/0.100
SNMP协议支持的服务原语有哪些?各有什么作用?这些服务原语用于哪两者之间的通信？
在方格纸上徒手绘制平面图形时，大圆的（）应尽可能利用方格纸上的线条，图形各部分之间的比例可按方格纸上的格数来确定。
A、圆弧线和主要轮廓线
B、中心线和主要轮廓线
C、中心线和视图剖面线
D、半径线和所有轮廓线
拉线设计应符合下列要求（）。
A、终端杆或终端跨越杆应装设四方拉线或转角120°的三方拉线（单杆用），顶头拉线条数为每条吊线用比吊线程式高一级的顶头拉线
B、地面杆高超过15m的接杆或单杆，应在电杆接合部位或每隔约7m处加装四方拉线或三方拉线一层，拉线程式同吊线的钢绞线程式
C、跨越杆上安装与吊线程式相同的四方拉线一层（H杆左右两杆各装1条顺线拉线）
D、在拉线地锚强度范围内，多层拉线尽可能采用“v”型拉线装置
The EMP table has these columns: ENAME VARCHAR2(35) SALARY NUMBER(8,2) HIRE_DATE DATE Management wants a list of names of employees who have been with the company for more than five years. Which SQL statement displays the required results? （）
A、SELECT ENAME FROM EMP WHERE SYSDATE-HIRE_DATE >5;
B、SELECT ENAME FROM EMP WHERE HIRE_DATE-SYSDATE >5;
C、SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)/365 >5;
D、SELECT ENAME FROM EMP WHERE (SYSDATE_HIRE_DATE)*/365 >5;
What is true about the WITH GRANT OPTION clause?（）
A、It allows a grantee DBA privileges.
B、It is required syntax for object privileges.
C、It allows privileges on specified columns of tables.
D、It is used to grant an object privilege on a foreign key column.
E、It allows the grantee to grant object privileges to other users and roles.