CompTIA
XK0-005 · Question #10651
A systems engineer deploys a new application server, but the server cannot communicate with the back-end database hostname. The engineer confirms that the application server can ping the database…
The correct answer is A. Incorrect DNS servers. If the application server can ping the database server by its IP address but not by its hostname, it indicates a DNS resolution issue. The most likely cause is incorrect DNS server configuration. The engineer should verify the DNS settings in /etc/resolv.conf or the network…
Troubleshooting
Question
A systems engineer deploys a new application server, but the server cannot communicate with the back-end database hostname. The engineer confirms that the application server can ping the database server's IP address. Which of the following is the most likely cause of the issue?
Options
- AIncorrect DNS servers
- BUnreachable default gateway
- CMissing route configuration
- DMisconfigured subnet mask
How the community answered
(25 responses)- A80% (20)
- B4% (1)
- C4% (1)
- D12% (3)
Explanation
If the application server can ping the database server by its IP address but not by its hostname, it indicates a DNS resolution issue. The most likely cause is incorrect DNS server configuration. The engineer should verify the DNS settings in /etc/resolv.conf or the network configuration.
Topics
#DNS#Hostname Resolution#Network Troubleshooting#Connectivity
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