View all questions & answers for the BIG-IP Administration Data Plane Concepts (F5CAB2) exam
BIG-IP Administration Data Plane Concepts (F5CAB2) - Question #32 Discussion
Community Explanations & Comments (11)
Patipan
10 months ago
Selected: B
Explanation (BIG-IP default HTTP monitor behavior):
The default HTTP health monitor on BIG-IP sends an HTTP request (usually GET /) and expects a 200 OK response.
Any response other than 200 OK (such as 404 Not Found) is treated as a monitor failure.
Given results:
2 pool members return 404 Not Found → ❌ monitor fail → Offline
1 pool member returns 200 OK → ✅ monitor pass → Online
✅ Pool status result:
Two members offline and one member online
This is a classic F5 CAB1 / LTM health monitor question.
The default HTTP health monitor on BIG-IP sends an HTTP request (usually GET /) and expects a 200 OK response.
Any response other than 200 OK (such as 404 Not Found) is treated as a monitor failure.
Given results:
2 pool members return 404 Not Found → ❌ monitor fail → Offline
1 pool member returns 200 OK → ✅ monitor pass → Online
✅ Pool status result:
Two members offline and one member online
This is a classic F5 CAB1 / LTM health monitor question.
Anonymous User
10 months ago
Selected: B
B. Two members online and one member offline
Is correct
D is wrong
Is correct
D is wrong
Yongguang Li
10 months ago
Selected: A
Two members offline and one member online
Anonymous User
10 months ago
Selected: A
Two members offline and one online, the answer is well explained below comment, But the answer B shows Two members online ,not one , i think it is a mistake .
CABGroup
9 months ago
Selected: A
A is correcr
Drome
9 months ago
Selected: A
Explicación
El monitor http por defecto en BIG-IP:
Envía una solicitud HTTP GET /
Considera UP solo si la respuesta es 200 OK
Cualquier otro código (como 404 Not Found) se considera DOWN
En tu escenario:
2 pool members responden 404 Not Found → ❌ OFFLINE
1 pool member responde 200 OK → ✅ ONLINE
El monitor http por defecto en BIG-IP:
Envía una solicitud HTTP GET /
Considera UP solo si la respuesta es 200 OK
Cualquier otro código (como 404 Not Found) se considera DOWN
En tu escenario:
2 pool members responden 404 Not Found → ❌ OFFLINE
1 pool member responde 200 OK → ✅ ONLINE
Anonymous User
9 months ago
Selected: A
The correct answer from the website
Anonymous User
6 months ago
Selected: D
Any response from the server means that it is online. You would receive a connection timeout or network error (no response code at all) if the server was offline.
Tapiwa Moyo
2 months ago
Selected: A
For your uploaded BIG‑IP health monitor question:
When you assign the default HTTP health monitor to a pool, it expects a 200 OK response to mark a member as available.
Two members return 404 Not Found → the monitor interprets this as a failure.
One member returns 200 OK → the monitor interprets this as success.
👉 Correct answer: A. Two members offline and one member online.
When you assign the default HTTP health monitor to a pool, it expects a 200 OK response to mark a member as available.
Two members return 404 Not Found → the monitor interprets this as a failure.
One member returns 200 OK → the monitor interprets this as success.
👉 Correct answer: A. Two members offline and one member online.
Tapiwa Moyo
2 months ago
Selected: A
For your uploaded BIG‑IP health monitor question:
When you assign the default HTTP health monitor to a pool, it expects a 200 OK response to mark a member as available.
Two members return 404 Not Found → the monitor interprets this as a failure.
One member returns 200 OK → the monitor interprets this as success.
👉 Correct answer: A. Two members offline and one member online.
When you assign the default HTTP health monitor to a pool, it expects a 200 OK response to mark a member as available.
Two members return 404 Not Found → the monitor interprets this as a failure.
One member returns 200 OK → the monitor interprets this as success.
👉 Correct answer: A. Two members offline and one member online.
raaaami
1 month ago
Selected: D
in F5 BIG-IP, the default http health monitor does not have a "Receive String" configured by default. Because it lacks a specific string to match against (like looking specifically for a "200 OK" status), the monitor simply checks if a TCP connection can be established and if the server returns any HTTP data.
Since both a 200 OK and a 404 Not Found response return data from the server, the default monitor considers all three responses as successful, marking all pool members as online. To fix this and mark the 404 members offline, an administrator would need to configure a custom HTTP monitor with a specific Receive String (e.g., "200 OK").
Since both a 200 OK and a 404 Not Found response return data from the server, the default monitor considers all three responses as successful, marking all pool members as online. To fix this and mark the 404 members offline, an administrator would need to configure a custom HTTP monitor with a specific Receive String (e.g., "200 OK").
A BIG-IP Administrator assigns the default http health monitor to a pool that has three members listening on port 80. When the administrator connects to each pool member via the CURL utility, two of the members respond with a status of 404 Not Found while the third responds with 200 OK. What will the pool show for member availability? (Choose one answer)
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