3.06 Troubleshoot F5 Technology to Address Functionality or Performance Issues 401 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What is a common performance issue caused by inefficient iRules?

   • ADecreased TMM processing
   • BReduced memory usage
   • CFaster connection setup
   • DIncreased CPU usage due to complex logic or loops
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which log file contains health monitor results and pool member status changes?

   • A/var/log/ltm
   • B/var/log/secure
   • C/var/log/messages
   • D/var/log/audit
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   An administrator is troubleshooting a virtual server that is not passing traffic to a newly added pool member. The pool member is marked down in the configuration, but the administrator suspects the monitor is incorrect. Which traffic flow tracing step would best confirm whether the BIG-IP is sending health check traffic to the correct destination?

   • AExamine the BIG-IP's routing table to confirm the pool member's subnet is reachable.
   • BUse tcpdump on the BIG-IP to capture traffic on the pool member's VLAN and filter for the monitor's destination port.
   • CReview the virtual server's statistics to see if any traffic is being forwarded to the pool member.
   • DCheck the pool member's node address in the configuration to ensure it matches the actual server IP.
   Reveal Solution Discussion Select an answer first
5. 4application · medium

   An administrator is troubleshooting a virtual server that terminates SSL. Clients are reporting that the connection is being reset after the SSL handshake completes. The pool members are healthy and the load is normal. Which log should the administrator review to identify the cause of the reset?

   • AThe packet filter log to see if a firewall rule is dropping the connection after the handshake.
   • BThe TMM error log to see if there is a problem with the SSL profile configuration.
   • CThe ASM security log to see if a policy is resetting the connection after the handshake.
   • DThe SSL certificate error log to check for expired or invalid certificates.
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   An administrator notices that one pool member is receiving significantly more traffic than the others, even though the load balancing method is 'Least Connections'. The pool member is healthy and has the same capacity as the others. What should the administrator investigate first to explain the uneven distribution?

   • AThe persistence profile, which may be directing a large number of clients to that specific member.
   • BThe monitor's interval, which may be marking the member down intermittently, causing it to miss traffic.
   • CThe pool member's priority, which may be set higher than the others, causing it to receive more traffic.
   • DThe virtual server's SNAT configuration, which may be causing the member to receive more connections.
   Reveal Solution Discussion Select an answer first