Interpret Availability Status of Interfaces F5CAB5 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   A BIG-IP administrator notices that a specific interface is 'down' while other interfaces are 'up'. What is the most likely first step to troubleshoot this issue?

   • ARestart the BIG-IP system to reset the interface.
   • BDisable and re-enable the interface in the configuration.
   • CReconfigure the VLAN associated with the interface.
   • DCheck the physical cable connection and the status of the connected device.
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2. 7application · medium

   An administrator is troubleshooting a BIG-IP and notices that an interface is showing a status of 'down' but the 'Disabled' column shows 'No'. The administrator checks the cable and confirms it is connected. What should the administrator do next to determine if the issue is on the BIG-IP or the switch?

   • ARemove the interface from the trunk to see if that resolves the issue.
   • BReboot the BIG-IP to reinitialize the interface.
   • CChange the interface speed to a lower value to see if the link comes up.
   • DCheck the switch port status to see if it is administratively up and receiving a link signal.
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4. 8expert · hard

   A BIG-IP administrator is troubleshooting an intermittent performance issue on a trunk consisting of four 1 Gbps interfaces. The trunk is configured for active/active load balancing. The administrator notices that one member interface frequently shows a 'down' status for a few seconds and then returns to 'up'. During these events, the other three members show increased utilization. The switch logs show no errors on the corresponding ports. What is the most likely cause of this behavior?

   • AThe BIG-IP interface is configured for half-duplex while the switch is full-duplex.
   • BThe trunk hashing algorithm is distributing traffic unevenly, causing one member to be overloaded.
   • CThe switch port is configured with spanning-tree PortFast disabled, causing the port to transition through blocking states.
   • DThe BIG-IP interface is configured with a lower MTU than the switch port.
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5. 9expert · hard

   An administrator is troubleshooting a BIG-IP that is experiencing intermittent connectivity issues. The interface status shows 'up' but the administrator observes that the link speed occasionally drops from 1 Gbps to 100 Mbps. The switch port is configured for auto-negotiation. What is the most likely cause of this speed downgrade?

   • AA faulty cable that is not meeting the specifications for 1 Gbps operation.
   • BThe BIG-IP is experiencing high CPU utilization.
   • CThe BIG-IP interface is configured with a lower MTU.
   • DThe switch port is configured with a different VLAN than the BIG-IP.
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6. 10application · medium

   An administrator is reviewing the interface status page and sees that a specific interface is listed as 'up' but the 'Active' column shows 'No'. The interface is a member of a trunk. What does this combination of status indicators mean?

   • AThe interface is up but has been administratively disabled from passing traffic.
   • BThe interface is up but is not assigned to any VLAN, so it cannot pass traffic.
   • CThe interface is up but is experiencing errors that prevent it from being used for traffic.
   • DThe interface is physically up but is not currently forwarding traffic because it is a standby member of the trunk.
   Reveal Solution Discussion Select an answer first