201 · Question #44
Which statement is true concerning iRule events.
The correct answer is B. All client traffic has data that could be used to trigger iRule events.. This question asks about the general nature of iRule events and their relationship to client traffic on a BIG-IP system.
Question
Which statement is true concerning iRule events.
Options
- AAll iRule events relate to HTTP processes.
- BAll client traffic has data that could be used to trigger iRule events.
- CAll iRule events are appropriate at any point in the clientserver communication.
- DIf an iRule references an event that doesn't occur during the client's communication, the client's connection
How the community answered
(35 responses)- A6% (2)
- B91% (32)
- C3% (1)
Why each option
This question asks about the general nature of iRule events and their relationship to client traffic on a BIG-IP system.
iRules support a wide array of protocols beyond just HTTP, including TCP, UDP, SSL, FTP, and SIP, with specific events for each protocol type.
Every network connection, regardless of its specific protocol (e.g., TCP, UDP, HTTP), generates underlying network events such as connection establishment (`CLIENT_ACCEPTED`), data reception (`CLIENT_DATA`), or closure, which iRules can be configured to process.
iRule events are designed to fire at specific, distinct phases of the client-server communication lifecycle, meaning that certain actions or data access are only appropriate within their respective event contexts.
If an iRule references an event that does not occur (e.g., an HTTP event on a generic TCP virtual server), that specific event block within the iRule simply won't execute, but it does not inherently cause the client's connection to drop.
Concept tested: F5 BIG-IP iRule event types and applicability
Source: https://techdocs.f5.com/en-us/bigip-15-1-0/big-ip-external-api-and-irules-reference/irule-events.html
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