A virtual server with an HTTP profile is returning a '400 Bad Request' error for some clients, but not others. The administrator reviews the HTTP profile settings and notices that the 'Maximum Header Size' is set to a low value. After increasing the limit, the issue persists for some clients. What is the most likely remaining cause?

The clients are using HTTP/2 which is not supported by the HTTP profile

The TCP profile's Maximum Segment Size is too low

The virtual server's pool members are not configured with an HTTP profile

Some clients are sending malformed HTTP requests that violate the HTTP protocol

A virtual server with an HTTP profile is not compressing responses as expected. The administrator has verified that the HTTP compression profile is applied and the 'Compression' setting is enabled. The backend server is sending a 'Content-Type' of 'application/json'. What should the administrator check next?

Disable the HTTP profile and use a FastL4 profile

Ensure the backend server is sending a 'Content-Encoding' header

Verify that 'application/json' is included in the HTTP profile's compression 'Content Type' include list

Check the TCP profile's 'Compression' setting

A virtual server with an HTTP profile is not passing client IP addresses to the backend servers. The application team needs the real client IP for logging and analytics. The administrator has verified that the HTTP profile is applied and the pool members are reachable. What should the administrator check or configure?

Add a Client SSL profile to the virtual server

Enable the 'Insert X-Forwarded-For' option in the HTTP profile

Change the TCP profile's 'Proxy Protocol' setting

Disable SNAT on the virtual server

In the BIG-IP configuration, where is a protocol-specific profile attached to a virtual server?

In the 'Pool' configuration under 'Members'

In the 'Node' configuration under 'Addresses'

In the virtual server's 'Profiles' section under the 'Local Traffic' menu

In the 'Network' section under 'VLANs'

F5Certified Administrator, BIG-IP

Domain 1Objective 3

Apply Appropriate Protocol Specific Profile F5CAB3 Practice Questions (Page 3)

Part of the Apply procedural concepts required to modify and manage virtual servers domain, which makes up ~55% of our current practice bank. F5 does not publish an official question count, but from its 30-minute exam (~10–20 total, ~6–11 in this domain), expect 1–2 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

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6concepts

Questions 11–15

11expert · hard
A virtual server with an HTTP profile is returning a '400 Bad Request' error for some clients, but not others. The administrator reviews the HTTP profile settings and notices that the 'Maximum Header Size' is set to a low value. After increasing the limit, the issue persists for some clients. What is the most likely remaining cause?
Select an answer first
12expert · hard
A virtual server with an HTTP profile is not compressing responses as expected. The administrator has verified that the HTTP compression profile is applied and the 'Compression' setting is enabled. The backend server is sending a 'Content-Type' of 'application/json'. What should the administrator check next?
Select an answer first
13foundation · easy
Which protocol-specific profile is designed to handle connection-oriented traffic with built-in features such as multiplexing, buffering, and connection reuse for web-based applications?
Select an answer first
14expert · hard
A virtual server with an HTTP profile is not passing client IP addresses to the backend servers. The application team needs the real client IP for logging and analytics. The administrator has verified that the HTTP profile is applied and the pool members are reachable. What should the administrator check or configure?
Select an answer first
15foundation · easy
In the BIG-IP configuration, where is a protocol-specific profile attached to a virtual server?
Select an answer first

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Apply Appropriate Protocol Specific Profile F5CAB3 Practice Questions (Page 3)

Questions 11–15

Which protocol-specific profile is designed to handle connection-oriented traffic with built-in features such as multiplexing, buffering, and connection reuse for web-based applications?

In the BIG-IP configuration, where is a protocol-specific profile attached to a virtual server?

Keep studying — Apply procedural concepts required to modify and manage virtual servers