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NEW QUESTION # 36
What is the default IP address of a newly installed BIG-IP system?
Answer: C
NEW QUESTION # 37
Refer to the exhibit.
What traffic will be permitted to reach the BIG-IP?
Answer: B
Explanation:
The exhibit shows the configuration of aSelf IPwith:
* Port Lockdown: Allow Custom
* ACustom Listthat includes the following TCP ports:
* 443
* 22
Meaning of these ports:
* TCP 443# HTTPS (TMUI - web-based management)
* TCP 22# SSH (command-line remote access)
No other TCP, UDP, or protocol entries are listed; therefore, only these two services are allowed to reach the BIG-IP via this Self IP.
Evaluating the answer choices:
Option
Service
Port
Allowed?
FTP
TCP 21
Not listed
#Not allowed
SSH
TCP 22
Listed
#Allowed
Telnet
TCP 23
Not listed
#Not allowed
Thus,SSHis the only traffic permitted through this Self IP configuration.
NEW QUESTION # 38
The BIG-IP Administrator uses Secure Copy Protocol (SCP) to upload a TMOS image to the/shared/images/ directory in preparation for an upgrade.
After the upload is complete, what will the system dobeforethe image appears in the GUI under:
System Software Management Image List?
Answer: B
Explanation:
When a TMOS ISO file is transferred to/shared/images/, the BIG-IP automatically performs a validation step:
Checksum Verification
* Before the image becomes visible in the GUI, the systemverifies the internal checksumembedded inside the ISO.
* This ensures:
* The file was fully transferred
* The image is not corrupted
* It matches the official F5 release signature
* Only after passing this verification does the GUI display the ISO under "Available Images." Why the other options are incorrect:
A). Reboot into a new partition
* No reboot occurs simply from uploading an image.
C). Copying into /var/local/images/
* This directory isnotused for ISO storage.
* All valid images remain in/shared/images/.
Thus, the correct system action ischecksum verification.
NEW QUESTION # 39
A BIG-IP device will be dedicated to functioning as a WAF, requiring only theASMmodule to be provisioned.
What provisioning level will ensure that the system allocatesall CPU, memory, and disk resourcesto this module exclusively?
Answer: C
Explanation:
Provisioning defines how BIG-IP allocates system resources to modules. The provisioning levels include:
* Dedicated- allocatesallCPU, memory, and disk resources to a single module
* Nominal- standard resource allocation balanced with other modules
* Minimal- lowest level, used for basic utility needs
* None- module disabled
* Comprehensive / Maximal- not valid TMOS provisioning levels
Why "Dedicated" is correct
When a BIG-IP device is intended to runonly ASM(Web Application Firewall), the recommended way to maximize performance is to provision the module atDedicatedlevel.
WithASM: Dedicated:
* ASM receives theentire hardware capacity
* No other modules can or should be provisioned
* This is explicitly recommended when a device is used solely as a WAF platform Why other options are incorrect B). Comprehensive / C. Maximal
* These arenot valid provisioning modesin BIG-IP.
* TMOS supports: Nominal, Minimal, Large (module-specific), and Dedicated.
D). Nominal
* Shares resources with other modules
* Does not provide full system performance
* Not suitable when exclusive resource allocation is required
Thus,Dedicatedis the correct provisioning choice.
NEW QUESTION # 40
A BIG-IP Administrator is responsible for deploying a new software image on an F5 BIG-IP HA pair and has scheduled a one-hour maintenance window.
With a focus on minimizing service disruption, which of the following strategies is the most appropriate?
Answer: C
Explanation:
For BIG-IP high-availability (HA) pairs, F5's recommended upgrade workflow prioritizesservice continuity, predictable failover, andminimal downtime. The established best-practice sequence is:
* Upgrade the standby unit first
* Because the standby device is not passing traffic, upgrading and rebooting it does not impact production.
* Boot the standby unit into the newly installed version
* Once online, the administrator verifies basic health, device sync status, cluster communication, and module functionality.
* Perform a controlled failover to the upgraded unit
* Traffic shifts to the newly upgraded device, allowing validation of the configuration and operational behavior under real traffic loads.
* Upgrade the second device (now standby)
* The previously active device becomes standby after failover, allowing it to be safely upgraded and rebooted without interruption.
This phased approach ensures only one device is unavailable at a time, allowing continuous traffic flow throughout the upgrade process.
Why the Correct Answer is C
OptionCexactly matches F5's documented production-safe upgrade method:
* Upgrade thestandbynode first
* Reboot into new image
* Failover to upgraded device
* Validate
* Upgrade the remaining (now-standby) device
This procedure minimizes risk and traffic disruption.
Why the other options are incorrect:
A). Upgrade the active node first
* Upgrading the active device requires removing it from service and failing over abruptly. This is not recommended and increases service disruption risk.
B). Resetting device trust
* Resetting trust is unnecessary and can disrupt configuration sync, peer communication, and cluster operation. It is not part of any standard upgrade workflow.
D). Upgrading and rebooting both nodes simultaneously
* This would causetotal outage, because both HA members would be unavailable at the same time.
NEW QUESTION # 41
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