Which naming method enables clients

单选题

Which naming method enables clients to connect to a database instance without any client sideconfiguration in sqlnet.ora or tnsnames.ora?

A、

the directory naming method

B、

the external naming method

C、

the easy connect method

D、

the local naming method

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A、

Use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location.

B、

Use DBCA to create a template from the existing database to contain the database structure and then manually copy the data by using Oracle Data Pump.

C、

Use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure.

D、

Create the database by using the CREATE DATABASE … command and manually import data by using Data Pump.

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单选题 Examine the parameters for a database instance：

NAME TYPE VALUE

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undo_management string AUTO

undo_retention integer 900

undo_tablespace string UNDOTBS1

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A、

Transactions write their undo in a temporary tablespace.

B、

Transactions fail.

C、

Transactions write their undo in the SYSTEM undo segment.

D、

Transactions wait until space becomes available in UNDOTBS1.

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B、

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D、

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B、

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C、

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B、

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