下列造血因素何项是不需要的（） 铁。 维生素B12。 锌。 叶酸。
A filesystem fails to mount and running fsck does not resolve the problem. What command should be run next?（） logform。 savebase。 exportvg。 synclvodm。
工程网络计划中，工作E有两项紧后工作G和H，已知工作G和工作H的最早开始时间分别为25和28，工作E的最早开始时间和持续时间分别为17和6，则工作E的自由时差为（）。 1。 2。 3。 5。
What happens when you run the SQL Tuning Advisor with limited scope?（） Access path analysis is not performed for SQL statements.。 SQL structure analysis is not performed for SQL statements.。 SQL Profile recommendations are not generated for SQL statements.。 Staleness and absence of statistics are not checked for the objects in the SQL Tuning Advisor. In this case, SQL Tuning Advisor produces recommendations based on statistical checks, access path analysis, and SQL structure analysis. SQL profile recommendations are not generated.。
When monitoring a system using vmstat with an interval， which of the following conclusions should be drawn about the metrics under page pi and page po？（） The values do not include working storage.。 The values do not include persistent storage.。 The values include both persistent and working storage.。 The values are not working or persistent storage.。
If an install of the latest NFS fixes failed, which of the following options provide debug output before running installp?（）
