Distinguish Between Control Plane and Data Plane Resources F5CAB5 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A BIG-IP administrator notices that the tmsh command `show sys clock` occasionally takes several seconds to respond, while traffic forwarding continues without issue. During these slow periods, `top` shows a single CPU core pegged at 100% but other cores are idle. Which resource is most likely experiencing contention?

   • AThe control plane CPU core handling management requests
   • BThe hardware acceleration ASIC used for SSL offload
   • CThe data plane CPU core handling packet processing
   • DThe memory allocated to the TMM data plane processes
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A BIG-IP is experiencing high TMM CPU utilization during peak hours. The administrator suspects that a specific virtual server is causing the issue. Which approach would best confirm this suspicion?

   • ACheck the `tmsh show sys tmm-info` output for overall TMM CPU
   • BRestart the TMM process to reset CPU counters
   • CEnable per-virtual-server statistics and monitor CPU usage
   • DUse `tmsh show ltm virtual` to view the configuration of each virtual server
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   An organization runs a high-volume HTTPS workload on a BIG-IP. The administrator observes that the TMM CPU utilization is consistently at 85% while the management CPU is at 10%. Which action would most directly reduce the TMM CPU load?

   • AReduce the logging level on the management interface
   • BIncrease the number of management CPU cores allocated
   • CDisable the SNMP agent to reduce polling overhead
   • DEnable the BIG-IP hardware SSL acceleration if available
   Reveal Solution Discussion Select an answer first
5. 4expert · hard

   An administrator is troubleshooting a BIG-IP that is experiencing intermittent management GUI timeouts. The `tmsh show sys cpu` output shows management CPU at 95% and TMM CPU at 15%. The administrator also notices that the `mcpd` process is consuming high CPU. What is the most likely cause?

   • AThe TMM process is leaking memory
   • BA configuration change is causing `mcpd` to perform excessive processing
   • CA high volume of data plane traffic is overwhelming the management CPU
   • DThe SSL offload engine is malfunctioning
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   Which statement correctly describes the relationship between the control plane and data plane on an F5 BIG-IP system?

   • AThe data plane configures the control plane with traffic rules.
   • BThe control plane makes decisions and the data plane executes them.
   • CThe data plane handles all management traffic while the control plane handles user traffic.
   • DThe control plane and data plane operate independently with no interaction.
   Reveal Solution Discussion Select an answer first