A mail server keeps shutting down. The administrator gets an error message over temperature error. Which of the following should the administrator replace FIRST？（）
A、 Power supply fan
B、 CPU fan
C、 Heat sink
D、 Case fan
You run a script that completes successfully using SQL*Plus that performs these actions: 1. Creates a multitenant container database (CDB) 2. Plugs in three pluggable databases (PDBs) 3. Shuts down the CDB instance 4. Starts up the CDB instance using STARTUP OPEN READ WRITE Which two statements are true about the outcome after running the script?（）
AThe seed will be in mount state.
BThe seed will be opened read-only.
CThe seed will be opened read/write.
DThe other PDBs will be in mount state.
EThe other PDBs will be opened read-only.
FThe PDBs will be opened read/write.
191.108.192.1属于哪类IP地址？（）
A、E类
B、A类
C、B类
D、C类
E、D类
Internet的协议选择是：（）。
A、NetBEUI
B、IPX/SPX
C、TCP/IP
D、UDP
在以下Windows操作系统中，（）支持ASP.NET。
AWindows98
BWindows2000
CWindowsXP
DWindowsServer2003
Internet代理服务器的作用是：（）。
A、视频服务
B、邮件服务
C、提供共享接入Internet
D、音频服务