CompTIA Network+ (N10-008) — Question 733

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?

Answer options

• A. 143
• B. 445
• C. 993
• D. 1521

Correct answer: D

Explanation

Port 1521 is the default port used by Oracle SQL databases for SQL connections, making it the correct answer. Port 143 is used for IMAP, port 445 is used for SMB, and port 993 is for secure IMAP, which are not relevant for SQL database connections.