f5 303 Exam Questions

Questions for the 303 were updated on : Nov 21 ,2025

Page 1 out of 35. Viewing questions 1-15 out of 523

Question 1

-- Exhibit --

A company uses a complex piece of client software that connects to one or more virtual servers
hosted on an LTM device. The client software is experiencing issues. An LTM Specialist must
determine the cause of the problem.
The LTM Specialist has the tcpdump extract and knows the client source IP is 168.210.232.5.
Assuming no wildcard virtual servers, how many distinct virtual servers does the client connect to on
the LTM device?

  • A. 2
  • B. 3
  • C. 4
  • D. 6
Answer:

B

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Question 2

The BIG-IP Administrator creates a custom iRule that fails to work as expected. Which F5 online
resource should the administrator use to help resolve this issue?

  • A. DevCentral
  • B. Bug Tracker
  • C. University
  • D. Health
Answer:

A

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Question 3

A BIG-IP Administrator applied the latest hotfix to an inactive boot location by mistake, and needs to
downgrade back to the previous hotfix.
What should the BIG-IP Administrator do to change the boot location to the previous hotfix?

  • A. Uninstall the newest hotfix and reinstall the previous hotfix
  • B. Reinstall the base version and install the previous hotfix
  • C. Reinstall the previous hotfix and re-activate the license
  • D. Uninstall the base version and restore the UCS
Answer:

B

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Question 4

A BIG-IP Administrator needs to make sure that the automatic update check feature works properly.
What must the administrator configure on the BIG-IP system?

  • A. Update Check Schedule
  • B. NTP servers
  • C. DNS name servers
  • D. SMTP servers
Answer:

A

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Question 5

The BIG-IP Administrator needs to perform a BIG-IP device upgrade to the latest version of TMOS.
Where can the administrator obtain F5 documentation on upgrade requirements?

  • A. iHealth
  • B. Network > Interfaces
  • C. Local Traffic > Pools
  • D. AsKFS
  • E. Local Traffic > Virtual Servers
Answer:

C

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Question 6

An LTM device has a virtual server mapped to www.f5.com with a pool assigned. Users report that
when browsing, they are periodically required to re-login to /resources/201.1.7.b.2_l.com. The
objects are defined as follows:
Virtual server. Destination 192.168.245.100:443 netmask 255.255.255.0
Persistence: SSL session persistence
Profiles: HTTP/TCP
Which persistence method should the BIG-IP Administrator apply to resolve this issue?

  • A. Source address affinity
  • B. hexadecimal
  • C. SIP
  • D. Destination address affinity
Answer:

A

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Question 7

An IT support engineer needs to access and modify Virtual Servers in three partitions (Common
/Banking and Dev) daily on a BIG-IP device. The company operates a Least Privilege access policy.
What level of access does the IT support engineer need to ensure completion of daily roles?

  • A. Manager in /common/Banking, and /Dev partitions
  • B. Application Editor in /Common, /Banking, and /Dev partitions
  • C. Manager in all partitions
  • D. Application Editor in all partitions
Answer:

A

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Question 8

What should the BIG-IP Administrator do to apply and activate a hotfix to a BIG-IP device that is
currently running version 11.0.0 on active partition HD1.1?

  • A. 1. confirm that 11.0.0 is installed on inactive partition HD1.2 2. apply a hotfix to partition HD 1.2 3. activate partition HD1.2
  • B. 1. reactivate the license on partition HD1.1 2. apply a hotfix to partition HD1.1
  • C. 1. activate partition HD1.2 2 confirm version 11.0.0 on partition HD1.2 3. install a hotfix on partition HD1.2
  • D. 1. set partition HD1.2 active 2. apply a hotfix to partition HD1.2
Answer:

A

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Question 9

A BIG-IP Administrator remotely connects to the appliance via out-of-band management using
https://mybigip mycompany net. The management portal has been working all week. When the
administrator attempts to login today, the connection times out. Which two aspects should the
administrator verify? (Choose two)

  • A. DNS is property resolving the FQDN of the device.
  • B. The device is NOT redirecting them to http.
  • C. The administrator has the latest version of the web browser.
  • D. Packet Filters on the device are blocking port 80.
  • E. The administrator has TCP connectivity to the device.
Answer:

A, E

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Question 10

A BIG-IP Administrator needs to configure the BIG-IP system to perform load balancing for FTP
servers
running passive mode FTP.
How should the administrator configure the Virtual Server to perform this load balancing?

  • A. A Standard Virtual Server + FTP profile
  • B. A Forwarding Virtual Server
  • C. A Performance Layer 4 Virtual Server + FTP profile
  • D. A Message Routing Virtual Server
Answer:

A

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Question 11

A BIG-IP Administrator opens a case with F5 Support. The support engineer requests the BIG-IP
appliance chassis serial number.
Which TMSH command will provide this information?
A.. list /sys software
B. show /sys version
C. list/sys diags
D. show /sys hardware

Answer:

D

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Question 12

A VLAN has the following objects configured:
Self-IP 10.10.10.100 with port lockdown set to Allow default
Virtual server 10.10.10.100:443 with UDP profile enabled
Virtual server 10.10.10.0/24 port forwarding virtual server
Global destination NAT forwarding 10.10.10.100 to internal server 172.168.10.100
Which object will process this request when https://10.10.10.100 is entered into a browser?

  • A. self-IP 10.10.10.100 with port lockdown set to Allow default
  • B. virtual server 10.10.100/24 port o forwarding virtual server
  • C. global destination NAT forwarding 10.10.10.100 to internal server 172.168.10.100
  • D. virtual server 10.10.10.100.443 with UDP profile enabled
Answer:

A

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Question 13

A BIG-IP device has only LTM and ASM modules provisioned. Both have nominal provisioning level.
The BI6-IP Administrator wants to dedicate more resources to the LTM module. The ASM module
must remain enabled. Which tmsh command should the BIG-IP Administrator execute to obtain the
desired result?

  • A. modify/sys provision asm level minimum
  • B. modify /sys provision Itm level dedicated
  • C. modify /sys provision asm level none
  • D. modify /sys provision Itm level minimum
Answer:

A

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Question 14

A pool of four servers has been partially upgraded for two new servers with more memory and CPU
capacity. The BIG-IP Administrator must change the load balance method to consider more
connections for the two new servers. Which load balancing method considers pool member CPU and
memory load?

  • A. Round Robin
  • B. Dynamic Ratio
  • C. Ratio
  • D. Least Connection
Answer:

C

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Question 15

A BIG-IP system has the following configuration:
* SNAT is set to Auto Map
* There are two VLANs internal and external
* Default route is pointed to the gateway on external VLAN
* Self P for internal VLAN is 1921.1.2
* Self IP for external VLAN is 192.1.2.2
* Floating IP addresses for internal VLAN is 192.1.1.1
* Floating IP addresses for external VLAN is 192.1.2.1
* The Virtual Server IP address is 192.1.1.100
Which IP address does the BIG-IP system use first when traffic reaches the servers on the internal
VLAN?

  • A. 192.1.1.100
  • B. 192.1.2.2
  • C. 192.1.1.1
  • D. 192.1.2.1
Answer:

C

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