下列关于甲骨文的说法不正确的是（)。A．甲骨文又称卜辞B．甲骨文反映了商王的活动C．甲骨文是中国汉

A. The user has dropped an important table that needs to be recovered.

B. The database files are corrupted when the database is open.

C. You are not able to start up the database instance because the required database files are missing.

D. The archived log files are missing for which backup is not available.

In which of the following situations is biometric technology NOT used？

A．Computers are switched on by a voice order.

B．Doctors diagnose disease through patients' voice.

C．Museum doors are controlled by palm scanner.

D．The police identify criminals through fingerprints.

An iron bar is to be electroplated with zinc.

·Identify what will act as the two electrodes for the cell

·Identify each electrode as either the anode or cathode

·Write the half- reactions occurring at each electrode

·Identify a solution that would make a suitable electrolyte for this cell

·Identify which electrode will be attached to the negative post of the battery and which will be attached to the positive post, and explain.

A. Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file.

B. All DDL commands are logged in the alert log file.

C. All DDL commands are logged in a different log file that contains DDL statements and their execution dates.

D. Only DDL commands that resulted in the creation of new segments are logged.

E. All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

A.Web server

B.Reports server

C.Administration server

D.Concurrent Processing server

In which of the following situations is biometric technology NOT used？

A．Computers are switched on by a voice order.

B．Doctors diagnose disease through patients' voice.

C．Museum doors are controlled by palm scanner.

D．The police identify criminals through fingerprints.

A．show log

B． print log

C． alert log

D． list log

A．show log

B．print log

C．alert log

D．list log