单项选择题
A. Open the file at the location specified by the BACKGROUND_DUMP_DEST parameter in the pfile.
B. Open the file at the location specified by the USER_DUMP_DEST parameter in the pfile.
C. Issue the SERVICES command at the LSNRCTL> prompt.
D. Issue the STATUS command at the LSNRCTL> prompt.
单项选择题 You are maintaining the database of a company. The listener process， listener1， is configured for remote access. You have issued the following command： LSNRCTL>STATUS listener1 Which information will NOT be displayed when you issue the above command？（）
多项选择题 YouarerequiredtoremovethedefaultEXTPROCentryfromthedefaultlistenerconfigurationtocreatealistenerthatwilllistenspecificallyforEXTPROCcalls.WhichtwomethodscanyouusetoremovethedefaultEXTPROCentryfromthedefaultlistenerconfiguration？（）
单项选择题 You executed the following procedure to collect statistics regarding an index： SQL>ANALYZE INDEX EMP_ID VALIDATE STRUCTURE； Which view will you use to determine whether you need to rebuild the index or not？（）