单项选择题
A.purchase the training CD for the disk subsystem and have the staff do self-paced training
B.have the IBM Service Support Representative perform the training
C.contact IBM Education Services for an onsite training class
D.send one person at a time to an IBM training session
单项选择题 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？（）
问答题 作为受许人，选择特许经营模式有哪些优缺点？
单项选择题 A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where theold one is installed. Bob is currently able to run a Java chess program starting from his home directory /home/bob using the command: java-classpath /test:/home/bob/downloads/*.jar games.Chess BobsCLASSPATH is set (at login time) to/usr/lib:/home/bob/classes:/opt/java/lib:/opt/java/lib/*.jar What is a possible location for the Chess.class file?（）