单项选择题
A user wants to be permanently added to the dba group. Which of the following commands or processes can be used to accomplish this（）
A.chgrp
B.chuser
C.edit /etc/user
D.edit /etc/security/group
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多项选择题
小企业可获得的商业信用多种多样，常见的有（）。
A.应付账款
B.应交税金
C.商业票据
D.预收账款 -
多项选择题
WhenWebSphereCommerce，WebSphereApplicationServer，thewebserverandthedatabaseserverarealllocatedonasinglemachine，whichofthefollowingstatementsareTRUE？（）
A.this is a multi-node installation
B.this is a single node installation.
C.each hardware and software component is a single point of failure.
D.this is an example of load balancing. -
多项选择题
During recovery， you need to know if log sequence 11 is in the online redo logs， and if so， you need to know the names of the online redo logs so you can apply them during recovery. Which view or views would you use to determine this information？（）
A. V$LOGFILE
B. V$RECOVER_LOG
C. V$RECOVER_DATABASE
D. V$LOG_RECOVER
E. V$LOG
