Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

A Linux file server has been experiencing random network disconnects. Users report that their SMB sessions drop several times an hour. The administrator captures the following kernel messages while the issue occurs:

e1000e 0000:00:19.0 eno1: NIC Link is Down
e1000e 0000:00:19.0 eno1: NIC Link is Up 100Mb/s Half Duplex, Flow Control: Rx/Tx

The switch port to which the server is connected is manually configured for speed 100 duplex full. Which of the following is the BEST first action to stop the disconnects and restore stable connectivity?

  • Enable autonegotiation on both the server NIC and the switch port (or manually set both to the same speed and duplex)

  • Lower the interface MTU to 1400 bytes to avoid fragmentation on the path

  • Disable Energy-Efficient Ethernet (EEE) on the server interface using ethtool --set-eee

  • Change TCP keep-alive parameters so idle sessions are refreshed more frequently

CompTIA Linux+ XK0-006 (V8)
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