Interpret Traffic Graphs (Interpret SNMP Results) F5CAB5 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A BIG-IP administrator notices a steady increase in client-side throughput on the external VLAN over the past hour, but the server-side throughput on the internal VLAN has remained flat. The SNMP graph for the internal VLAN shows no corresponding increase in packets. What is the most likely explanation for this discrepancy?

   • AThe internal VLAN interface is administratively down, preventing all server-side traffic.
   • BThe SNMP polling interval on the internal VLAN is set too high to capture the traffic increase.
   • CA virtual server is sending HTTP redirects to clients without forwarding the requests to pool members.
   • DThe pool members are experiencing a network bottleneck that is limiting their outbound throughput.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   An SNMP graph shows a sudden drop in throughput on a BIG-IP virtual server, and the system log shows a failover event at the same time. What is the most likely cause of the traffic drop?

   • AThe SNMP agent stopped responding due to the failover
   • BThe virtual server was deleted from the configuration
   • CTraffic was redirected to the standby unit during the failover, causing a brief interruption
   • DThe network cable was unplugged from the interface
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   Which SNMP metric is specifically used to count packets that were dropped because the interface receive queue was full?

   • AifOutOctets
   • BifInDiscards
   • CifInErrors
   • DifAdminStatus
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   An administrator is troubleshooting a problem where clients are experiencing intermittent connection resets. SNMP graphs show that 'ltmVirtualServStatClientPktsIn' and 'ltmVirtualServStatClientPktsOut' are normal, but 'ltmVirtualServStatClientBytesIn' and 'ltmVirtualServStatClientBytesOut' are also normal. However, the graph for 'ltmVirtualServStatClientTotConns' shows a steady increase, while 'ltmVirtualServStatClientCurConns' shows periodic drops to zero. What is the most likely cause?

   • AThe pool members are crashing and restarting.
   • BThe virtual server's idle timeout is too short, causing connections to be closed.
   • CThe BIG-IP is being rebooted periodically.
   • DThe SNMP polling interval is too long.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A monitoring team is using SNMPv2c to poll a BIG-IP device. They are able to retrieve some OIDs but not others. What is the most likely reason for this?

   • AThe community string has read-only access to a subset of the MIB tree.
   • BThe monitoring team is using the wrong MIB file.
   • CThe BIG-IP device is not SNMPv2c compatible.
   • DThe BIG-IP is configured to only respond to SNMPv3.
   Reveal Solution Discussion Select an answer first