101 · Question #33
You have created a custom profile named TEST2. The parent profile of TEST2 is named TEST1. If additional changes are made to TEST1, what is the effect on TEST2.
The correct answer is B. Some of the changes to TEST1 may propagate to TEST2.. In F5 BIG-IP, child profiles inherit from parent profiles, but only settings not explicitly overridden in the child will be updated when the parent changes.
Question
You have created a custom profile named TEST2. The parent profile of TEST2 is named TEST1. If additional changes are made to TEST1, what is the effect on TEST2.
Options
- AAll changes to TEST1 are propagated to TEST2.
- BSome of the changes to TEST1 may propagate to TEST2.
- CChanges to TEST1 cannot affect TEST2 once TEST2 is saved.
- DWhen TEST1 is changed, the administrator is prompted and can choose whether to propagate
How the community answered
(29 responses)- A3% (1)
- B83% (24)
- C7% (2)
- D7% (2)
Why each option
In F5 BIG-IP, child profiles inherit from parent profiles, but only settings not explicitly overridden in the child will be updated when the parent changes.
Not all changes propagate because settings explicitly overridden in the child profile are not updated when the parent profile changes.
When TEST2 is created as a child of TEST1, it inherits all of TEST1's settings. However, any setting explicitly overridden in TEST2 retains its local value and will not be updated when TEST1 changes. Only settings still configured to inherit in TEST2 will reflect parent changes, meaning only some changes propagate.
Changes to TEST1 can still affect TEST2 for any settings that TEST2 has not explicitly overridden and continues to inherit from the parent.
BIG-IP does not prompt an administrator when a parent profile changes - propagation is automatic and governed by inheritance rules, not by administrator choice.
Concept tested: F5 BIG-IP custom profile parent-child inheritance
Source: https://techdocs.f5.com/en-us/bigip-16-0-0/big-ip-local-traffic-management-profiles-reference/using-profiles.html
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