A Linux administrator notices that an application is having trouble connecting to an external database. Which of the following commands should the administrator use to validate the connection to the…

The correct answer is B. nc -v db.comptia.org 3306. This command tests connectivity to a specific remote host and port, allowing the administrator to verify whether the database service port is reachable from the system.

Troubleshooting and Diagnostics

Question

A Linux administrator notices that an application is having trouble connecting to an external database. Which of the following commands should the administrator use to validate the connection to the remote port exposed by a database server?

Options

Adig MX db.complia.org:3306
Bnc -v db.comptia.org 3306
Carp -an | grcp db.comptia.org | grcp 3306
Dss -plant | qrep 3306

How the community answered

(23 responses)

A
9% (2)
B
87% (20)
C
4% (1)

Explanation

This command tests connectivity to a specific remote host and port, allowing the administrator to verify whether the database service port is reachable from the system.

Topics

#netcat#port connectivity#database connection#network troubleshooting

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