101 · Question #208
Which cookie persistence method requires the fewest configuration changes on the web servers to be implemented correctly.
The correct answer is A. insert. Cookie insert persistence is the easiest to deploy because BIG-IP itself injects the persistence cookie into the HTTP response, requiring no modification to web server code or configuration.
Question
Which cookie persistence method requires the fewest configuration changes on the web servers to be implemented correctly.
Options
- Ainsert
- Brewrite
- Cpassive
- Dsession
How the community answered
(26 responses)- A88% (23)
- C4% (1)
- D8% (2)
Why each option
Cookie insert persistence is the easiest to deploy because BIG-IP itself injects the persistence cookie into the HTTP response, requiring no modification to web server code or configuration.
With the insert method, BIG-IP adds its own cookie (BIGipServer) to the HTTP response headers on behalf of the server, transparently encoding pool member information. The web servers are completely unaware of this operation and need no code changes, making it the least invasive deployment option.
The rewrite method requires the server to already be setting a cookie with a specific name; BIG-IP then overwrites the cookie value, so the server must be configured to emit that cookie first.
The passive method requires the server to generate and set its own cookie containing server identification information in a format BIG-IP can read, which demands application-level changes on the web servers.
Session is not a standard F5 BIG-IP cookie persistence mode; the valid cookie persistence modes are insert, rewrite, and passive.
Concept tested: F5 BIG-IP cookie persistence insert method
Source: https://techdocs.f5.com/en-us/bigip-17-1-0/big-ip-local-traffic-management-implementations/configuring-cookie-persistence.html
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