Crucial Exams

CompTIA Server+ SK0-005 Practice Question

A new Linux application server has been placed on VLAN 20. The routing design document shows that VLAN 20 uses the contiguous address block 10.10.20.0/23 and that the Layer-3 SVI on the distribution switch is 10.10.20.1/23.

After the build is finished, users report they can SSH to the server from 10.10.21.0 addresses but not from 10.10.20.0 addresses or any other subnet. You log on locally and run ip addr:

eth0: inet 10.10.21.80/24 brd 10.10.21.255 scope global eth0
       default via 10.10.21.1 dev eth0 metric 100

Which single change will most likely restore full connectivity without adding static routes or proxy ARP work-arounds?

  • Change the default gateway to 10.10.20.1.

  • Add a static route for 10.10.20.0/24 via 10.10.20.1.

  • Increase the interface MTU to 9216 bytes.

  • Update the subnet mask on eth0 to 255.255.254.0 (/23).

CompTIA Server+ SK0-005
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