Examine the command:
SQL> CONNECT hr/hr@orc1
Which two configurations allow this command to execute successfully? (Choose two.)
A. In the tnsnames.ora file, the SERVICE_NAME value of CONNECT_DATA should be explicitly suffixed with the domain name,
B. The SERVICE.NAMES initialization parameter should contain the name orcl in the database host.
C. The orcl TNS alias should be defined such that it is resolvable by a client running on the database host.
D. The orcl TNS alias should be defined in the tnsnames.ora file on both the client and the database host.
E. The TNS_ADMIN environment variable should be set to orcl on the client.
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