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NEW QUESTION # 57
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: B
Explanation:
For BIG-IP high-availability (HA) pairs, F5's recommended upgrade workflow prioritizes service continuity
, predictable failover , and minimal 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
Option C exactly matches F5's documented production-safe upgrade method:
* Upgrade the standby node 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 cause total outage , because both HA members would be unavailable at the same time.
NEW QUESTION # 58
What command will allow the BIG-IP Administrator to view theconfigured management IPof a BIG-IP system?
(Choose one.)
Answer: B
Explanation:
Comprehensive and Detailed Explanation (Paraphrased)
The BIG-IP stores the configured management IP address as asystem configuration objectunder the/sys hierarchy.
To display configured (persistent) values, BIG-IP uses thetmsh list command, not show.
Why tmsh list sys management-ip is correct
* The management IP configuration is defined under:
* /sys management-ip
* Running:
* tmsh list sys management-ip
displays:
* The configured management IP address
* Netmask
* Associated attributes
This command shows theactual configured management IP, which is what the question asks for.
Why the other options are incorrect
A). tmsh show sys management-ip
* The show command is used for runtime statistics and status.
* management-ip is a configuration object, not a statistics object.
C). tmsh list sys management-route
* Displays management routing information, not the management IP address itself.
D). tmsh list net self
* Displays Self IPs used on the data plane.
* Does not show the management interface IP.
NEW QUESTION # 59
A new logging solution is being implemented on the network. Policy requires keeping management traffic sent from the BIG-IPout of the management interface. After configuring the BIG-IP to forward messages to the new Syslog server, the BIG-IP Administrator notices that packets are being sentfrom a numbered data- plane Self IP.
What should the BIG-IP Administrator change to send the traffic out of thecorrect interface?
Answer: C
Explanation:
By default,management-plane trafficuses themanagement routing table, whiledata-plane trafficuses the TMM routing table.
Remote Syslog traffic ismanagement-planetrafficunlessa management route exists.
If noManagement Routematches the Syslog server's destination IP, the BIG-IP will instead:
* UseTMM routes, and
* Source the packets from aSelf IP
This is exactly what the administrator is observing.
To force Syslog traffic out the management port:
You must create aManagement Route, which is configured using:
tmsh create /sys management-route <name> gateway <ip> network <syslog subnet> This sends syslog traffic:
* Out of themanagement interface
* Using theManagement IPas the source
Thus,Option Bis correct.
Why the other options are incorrect:
A). Set the Management IP as the source address
* Source address selection is overridden by routing.
* Without a management route, traffic still goes out the data plane.
C). Create a new Self IP using a route domain
* Unnecessary and not related to management-plane routing.
* Syslog traffic should not rely on data-plane Self IPs.
D). Modify port lockdown on Self IP to allow UDP/514
* This would allow Syslog trafficintothe BIG-IP over a Self IP, not forceoutboundtraffic via management.
NEW QUESTION # 60
Which BIG-IP feature allows you to customize traffic management?
Answer: C
Explanation:
iRules are used to define custom traffic management behavior based on user-defined conditions and actions.
NEW QUESTION # 61
Which of the following areresource allocation (provisioning) settingsfor BIG-IP modules?
(Choose two.)
Answer: A,B
Explanation:
BIG-IP module provisioning determines howCPU, memory, and disk resourcesare allocated to each licensed module. F5 defines a specific set of supported provisioning levels.
Valid provisioning (resource allocation) settings
Nominal
* Allocates a standard, balanced amount of system resources to a module.
* Intended for typical production deployments where multiple modules may be provisioned at the same time.
Dedicated
* Allocatesall available system resourcesto a single module.
* Used when the BIG-IP device is dedicated to running only one module (for example, ASM-only or APM-only deployments).
* No other modules can be provisioned when one is set to Dedicated.
These two options are valid and supported provisioning levels.
Why the other options are incorrect
Maximum
* This is not a valid BIG-IP provisioning level.
* BIG-IP does not use "Maximum" as a resource allocation setting.
Limited
* This is also not a supported provisioning level.
* BIG-IP uses levels such as None, Minimal, Nominal, and Dedicated (module-dependent), not Limited.
NEW QUESTION # 62
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