A technician is troubleshooting a SQL database connection. After remotely connecting to the end client, the technician tests basic connectivity. Which of the following ports is available to connect via command-line interface?
Port 1521 is commonly used by Oracle SQL databases for SQL*Net connections, making it the correct port for connecting to an Oracle SQL database.
A. 143: This port is used by the Internet Message Access Protocol (IMAP) for email, not for SQL databases.
B. 445: This port is used for Microsoft Directory Services and file sharing (SMB/CIFS), not for SQL databases.
C. 993: This port is used for secure IMAP over SSL/TLS, not for SQL databases.
Port 1521 is used by Oracle Database. Given the info we are given, port 1521 would most likely be the most appropriate for this situation, seeing as SQL deals with managing databases. Let me know if I am incorrect on my assumption.
The correct answer is D. 1521.
Port 1521 is typically used for SQL*Net, the network interface used by Oracle Database for networked client access. It allows the database server to service requests from the client in a manner that is completely transparent to the client.
This port is used for Microsoft Directory Services and file sharing (SMB/CIFS), not for SQL databases.
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