单项选择题
A.DB2 Express Edition
B.DB2 Personal Edition
C.DB2 Workgroup Server Edition
D.DB2 Enterprise Server Edition
单项选择题 Which of the following tools can be used to schedule a backup operation that is to be run every Sunday evening?（）
单项选择题 Which of the following tools can make recommendations for indexes and/or MQTs to improve the performance of DB2 applications?（）
单项选择题 Which product must be installed on z/OS to allow a COBOL program running on that machine to access data on a remote DB2 for z/OS server?（）