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F5 303 Exam With Confidence Using Practice Dumps

Exam Code:
303
Exam Name:
BIG-IP ASM Specialist
Certification:
Vendor:
Questions:
520
Last Updated:
Mar 4, 2026
Exam Status:
Stable
F5 303

303: BIG-IP ASM Exam 2025 Study Guide Pdf and Test Engine

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BIG-IP ASM Specialist Questions and Answers

Question 1

A web developer has created a custom HTTP call to a backend application. The HTTP headers being sent by the HTTP call are:

GET / HTTP/1.1

User-Agent: MyCustomApp (v1.0)

Accept: text/html

Cache-Control: no-cache

Connection: keep-alive

CookiE. somecookie=1

The backend server is responding with the following:

HTTP/1.1 400 Bad Request

DatE. Wed, 20 Jul 2012 17:22:41 GMT

Connection: close

Why is the HTTP web server responding with a HTTP 400 Bad Request?

Options:

A.

The client request does NOT include a Host header.

B.

The User-Agent header contains an invalid character.

C.

The web server is NOT expecting a keep-alive connection.

D.

The web server is configured to accept HTTP 1.0 requests only.

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Question 2

There are three servers in the pool: 172.16.20.1, 172.16.20.2, and 172.16.20.3, with the virtual IP address 10.0.20.88.

A user CANNOT connect to an HTTP application. To understand the problem and find a solution, the LTM Specialist runs two concurrent traces on the LTM device, with the following results:

Trace on client side:

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes

22:22:07.423759 IP 172.16.20.100.53875 > 10.0.20.88.80: S 998346084:998346084(0) win 5840

22:22:07.424056 IP 10.0.20.88.80 > 172.16.20.100.53875: S 4671780:4671780(0) ack 998346085 win 4380

22:22:07.424776 IP 172.16.20.100.53875 > 10.0.20.88.80: . ack 1 win 365

22:22:07.424790 IP 172.16.20.100.53875 > 10.0.20.88.80: P 1:149(148) ack 1 win 365

22:22:07.424891 IP 10.0.20.88.80 > 172.16.20.100.53875: . ack 149 win 4528

22:22:12.024850 IP 10.0.20.88.80 > 172.16.20.100.53875: R 1:1(0) ack 149 win 4528

6 packets captured

6 packets received by filter

0 packets dropped by kernel

Trace on server side:

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

listening on internal, link-type EN10MB (Ethernet), capture size 96 bytes

22:22:07.424881 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380

22:22:08.424893 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380

22:22:09.625082 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380

22:22:10.825194 IP 172.16.20.100.53875 > 172.16.20.2.80: S 51116678:51116678(0) win 4380

4 packets captured

4 packets received by filter

0 packets dropped by kernel

What should the LTM Specialist do to solve the problem?

Options:

A.

Edit the packet filter rules.

B.

Modify the monitor of the pool.

C.

Enable the virtual server.

D.

Configure the virtual server to use SNAT.

Question 3

A web application is configured as follows:

What should be modified to set a maximum request limit?

Options:

A.

Virtual server settings

B.

HTTP profile

C.

Pool settings

D.

ICP Profile