Internet的协议选择是:()。
A、NetBEUI
B、IPX/SPX
C、TCP/IP
D、UDP
You defined the Recovery Manager (RMAN) retention policy to recovery window of 7 days by executing the following command: RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; When a backup is performed, what would be the status of this backup after seven days?()
A、 The backup would be marked as invalid.
B、 The backup would be marked as obsolete.
C、 The backup would be removed from the media.
D、 The backup would be removed from the RMAN repository.
In your production database, you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation, you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members. Which two actions would you take to improve the performance of the database server? ()
Aincrease the size of the redo log buffer
Bincrease the number of redo log groups
Cincrease the number of log writer processes
Dincrease the number of ARCn processes
Echange the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location
对口服敌百虫中毒的患者,处理不正确的是()
A、用清水洗胃
B、用生理盐水洗胃
C、服用阿托品
D、每次注入洗液量200~250ml
E、用碳酸氢钠洗胃
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.
在以下Windows操作系统中,()支持ASP.NET。
AWindows98
BWindows2000
CWindowsXP
DWindowsServer2003