Objective 1.10 Identify Applicable iRules Events Including Application to WideIP Versus Listener 302 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A company runs a global web application behind BIG-IP DNS. They need to log the client's source IP and the selected data center for every DNS resolution of www.example.com. The logging must occur only when a DNS response is actually sent to the client. Which iRule event should be used, and where should the iRule be applied?

   • AUse the LB_SELECTED event in an iRule applied to the WideIP.
   • BUse the LB_FAILED event in an iRule applied to the Listener.
   • CUse the CLIENT_ACCEPTED event in an iRule applied to the WideIP.
   • DUse the HTTP_REQUEST event in an iRule applied to the Listener.
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   An administrator wants to insert a custom HTTP header into requests that arrive at a specific virtual server. The header must be added before the request is sent to the backend pool. Which iRule event should be used, and where should the iRule be applied?

   • AUse the LB_FAILED event in an iRule applied to the virtual server.
   • BUse the LB_SELECTED event in an iRule applied to the WideIP.
   • CUse the CLIENT_ACCEPTED event in an iRule applied to the WideIP.
   • DUse the HTTP_REQUEST event in an iRule applied to the virtual server.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   An administrator needs to log which data center was selected for a DNS query. Where should the iRule be applied?

   • ATo the WideIP
   • BTo the pool member
   • CTo the LTM virtual server (listener)
   • DTo the DNS resolver
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   What is the primary purpose of a WideIP in BIG-IP DNS?

   • ATo map a fully qualified domain name (FQDN) to one or more pools of virtual servers and direct client traffic based on load balancing and persistence methods.
   • BTo define a pool of physical servers that share the same application and are monitored for health.
   • CTo translate a private IP address to a public IP address for outbound client traffic.
   • DTo provide a virtual server IP address that listens for incoming HTTP traffic on a specific port.
   Reveal Solution Discussion Select an answer first
6. 5foundation · easy

   An iRule is applied to a WideIP to log when a pool selection fails. Which GTM event should the iRule use?

   • ACLIENT_ACCEPTED
   • BLB_FAILED
   • CHTTP_REQUEST
   • DLB_SELECTED
   Reveal Solution Discussion Select an answer first