choose two

Examine this command executed on a client that is remote from the database server.

SQL> CONNECT hr/hr@orcl

Which two are required for this command to connect the SQLPLUS client to a database instance?

A) A service name must be defined to the listener that matches the service name in the orcl TNS entry.

B) An orcl TNS entry must be defined in the client-side tnsnames.ora file.

C) An orcl TNS entry must be defined in the client-side and server-side tnsnames.ora files.

D) The service name orcl must be defined to the listener.

E) An orcl TNS entry must be defined in the server-side tnsnames.ora file.

Answer：AB

(解析：远程连接，客户端需要配置tns，服务端要配置监听，而且对应的service要匹配。来自3组：1015267481)