Users report that an application is unable to connect to a server on the same network segment.
Which of the following is the MOST likely reason?
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A. B. C. D.D.
The MOST likely reason that users are unable to connect to a server on the same network segment is that the application is using a port that is closed on the server.
Explanation: When a client application attempts to connect to a server, it uses a specific port number to communicate with the server. If the server's port is closed, the client application will be unable to establish a connection, and the user will receive an error message indicating that the connection failed.
Other potential issues such as external firewall, DMZ configuration, or malware detection could also prevent the connection, but they are less likely to be the issue in this scenario as the server and clients are on the same network segment.
Here's a breakdown of why the other answers are less likely:
A. The external firewall is preventing access to the server: If the server and clients are on the same network segment, there shouldn't be any external firewall in between them. Furthermore, even if there was an external firewall, it would be unlikely to block access to a server on the same segment.
B. The DMZ is incorrectly configured: This is also an unlikely cause because a DMZ is typically used to isolate public-facing servers from internal networks. If the server and clients are on the same network segment, they shouldn't be in the DMZ.
C. The syslog server detects malware on the server: While malware could certainly cause connectivity issues, it is unlikely to be the cause of a connection failure between two devices on the same network segment. In addition, syslog servers typically log events, so they wouldn't actively block connections.
Therefore, the MOST likely reason that users are unable to connect to a server on the same network segment is that the application is using a port that is closed on the server.