BIG-IP AdministrationInstall, InitialConfiguration, andUpgradeVersion: Demo[ Total Questions: 10] Web: www.certsout.comEmail: [email protected]
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Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 1 of 10A. B. C. Category BreakdownCategory Number of QuestionsIdentify management connectivity configurations 3Apply procedural concepts required to manage software images 5Explain the processes of licensing, license reactivation, and license modification 2TOTAL 10Question #:1 - [Identify management connectivity configurations]The BIG-IP Administrator needs to update access to the Configuration Utility to include the172.28.31.0/24and172.28.65.0/24networks.From the TMOS Shell (tmsh), which command should the BIG-IP Administrator use to complete this task?modify /sys httpd allow add { 172.28.31.0/255.255.255.0 172.28.65.0/255.255.255.0 }modify /sys httpd allow add { 172.28.31.0 172.28.65.0 }modify /sys httpd permit add { 172.28.31.0/255.255.255.0 172.28.65.0/255.255.255.0 }Answer: AExplanationAccess to the BIG-IP Configuration Utility (TMUI) is controlled through the/sys httpd allowlist.This list defines which IP addresses or subnets are allowed to connect to the management web interface.To allow two new subnets—172.28.31.0/24and172.28.65.0/24—the administrator mustaddboth subnets to the existing list without removing current entries.In tmsh, subnet entries must be specified innetwork/netmask format, for example:172.28.31.0/255.255.255.0The correct tmsh command to append these networks is:modify /sys httpd allow add { 172.28.31.0/255.255.255.0 172.28.65.0/255.255.255.0 }Why the other options are incorrect:Option B:IPs are listed without masks, which is invalid for subnet-based access control.The system requiresnetwork/netmaskformat.Option C:
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 2 of 10A. B. C. The command uses permit instead of allow, which is not a valid attribute of /sys httpd.The correct keyword must beallow.Thus, onlyOption Acorrectly adds both permitted subnets in the proper tmsh format.Question #:2 - [Identify management connectivity configurations]The BIG-IP Administrator received a ticket that an authorized user is attempting to connect to the Configuration Utility from a jump host and is being denied.The HTTPD allow list is configured as:sys httpd {allow { 172.28.31.0/255.255.255.0 172.28.65.0/255.255.255.0 }}The jump host IP is172.28.32.22.What command should the BIG-IP Administrator use to allow HTTPD access for this jump host?modify /sys httpd allow replace-all-with { 172.28.32.22 }modify /sys httpd allow delete { 172.28.31.0/255.255.255.0 172.28.65.0/255.255.255.0 }modify /sys httpd allow add { 172.28.32.22 }Answer: CExplanationThe HTTPD allow list controls which IP addresses or subnets may access the Configuration Utility (TMUI) on the BIG-IP system. The Administrator already has two subnets allowed and needs to add asingle host IPto the existing list.The object/sys httpd allowsupports actions such asadd,delete, andreplace-all-with.Because the goal is toaddone more entry without removing the existing permitted subnets, the correct command is:modify /sys httpd allow add { 172.28.32.22 }This appends the new host to the existing list while preserving the previously configured networks.Why the other options are incorrect:Option A (replace-all-with)wouldoverwritethe entire allow list, removing existing permitted subnets—unacceptable.
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 3 of 10A. B. C. Option B (delete)wouldremovethe existing networks and not add the required host.Therefore, the correct administrative action is toaddthe jump host’s IP.Question #:3 - [Apply procedural concepts required to manage software images]The BIG-IP Administrator uses Secure Copy Protocol (SCP) to upload a TMOS image to the/shared/images/directory in preparation for a TMOS upgrade.After the upload is completed, what will the system dobeforethe image is shown in the GUI under:System » Software Management » Image List?The system performs a reboot into a new partitionThe system verifies the internal checksumThe system copies the image to /var/local/images/Answer: BExplanationWhen a TMOS image (.iso file) is uploaded into the/shared/images/directory, the BIG-IP performs an internal validation step before the ISO appears in the GUI.1. The system verifies the internal checksumBIG-IP automatically reads the embedded checksum inside the ISO fileVerifies integrity of the uploaded imageConfirms the file is not corrupted or incompleteEnsures the image is a valid F5 TMOS software imageOnly after this checksum verification succeeds does the image appear under:System # Software Management # Image ListWhy the other options are incorrect:A. The system performs a reboot into a new partitionUploading an ISO file never triggers a reboot.C. The system copies the image to /var/local/images/
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 4 of 10A. B. C. All valid TMOS images remain in/shared/images/.No copying occurs.Question #:4 - [Apply procedural concepts required to manage software images]A BIG-IP Administrator is using Secure Copy Protocol (SCP) to transfer a TMOS image to the BIG-IP system in preparation for an upgrade.To what directory should the file be transferred?/shared/images//local/images//var/images/Answer: AExplanationBIG-IP systems require all ISO images (base TMOS images and HotFix images) to be stored in a specific directory used for software installation:/shared/images/This directory:Is theonly supported locationfrom which the BIG-IP software installation system validates and installs ISO filesIs accessible by both the GUI and TMSH installersHas adequate storage space allocated specifically for imagesIs part of the shared partition that persists across rebootsWhen transferring images via SCP, the administrator must copy them directly into/shared/images/so that:The GUI (System # Software Management # Available Images) can detect the imageTMSH install software image commands can reference itOther directories such as/local/images/or/var/images/are not valid storage paths for software images.Question #:5 - [Apply procedural concepts required to manage software images]Which two items demonstrate thecreation of a new volumefor software images?
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 5 of 10A. B. C. D. E. (Choose two.)tmsh install software image /shared/images/BIGIP-<version>.iso volume HD1.5 create-volumetmsh install /sys software image BIGIP-<version>.iso volume HD1.5 create-volumeUsing the GUI, go toSystem > Disk Management, selectNew Volume. In the pop-up window, type the name or number of the new volume and clickApply.tmsh install sys software image /shared/images/BIGIP-<version>.iso volume HD1.5 create-volumeUsing the GUI, go toSystem > Software Management > Available Images > Install, and in the Install Software Image pop-up window, type the new volume name or number and clickInstall.Answer: A CExplanationIn BIG-IP, software images are installed onboot volumes(for example, HD1.1, HD1.2, HD1.3, etc.).To install software on anew volume, the administrator must instruct the system to create a new boot location before installation.There are two correct ways to create a new volume:A. tmsh command (with correct syntax)tmsh install software image /shared/images/BIGIP-<version>.iso volume HD1.5 create-volumeThis syntax correctly includes:install software imagefull path to ISO (/shared/images/...)volume name (HD1.5)create-volumekeywordThis instructs BIG-IP to create the new boot volume as part of the installation.C. Using the GUI # System > Disk ManagementFrom the Disk Management menu, the administrator can:Select “New Volume”Enter the volume identifier (e.g., HD1.5)Apply changes
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 6 of 10A. B. C. This GUI method is officially supported and explicitly creates a new boot volume before installing the software.Why the other options are incorrect:B. Incorrect tmsh syntaxMissing /shared/images/ pathIncorrect command structureD. Incorrect command structureMissing required keywords and correct command hierarchyE. Software Management # Install does NOT create volumesThis installs to anexistingvolume onlyThe GUI install dialog does not create new boot volumesThus, onlyOption AandOption Cproperly create a new software volume.Question #:6 - [Apply procedural concepts required to manage software images]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?The system performs a reboot into the new partitionThe system verifies the internal checksumThe system copies the image to /var/local/images/Answer: BExplanationWhen a TMOS ISO file is transferred to/shared/images/, the BIG-IP automatically performs a validation step:Checksum VerificationBefore the image becomes visible in the GUI, the systemverifies the internal checksumembedded inside the ISO.
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 7 of 10A. B. C. D. This ensures:The file was fully transferredThe image is not corruptedIt matches the official F5 release signatureOnly after passing this verification does the GUI display the ISO under “Available Images.”Why the other options are incorrect:A. Reboot into a new partitionNo 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.Question #:7 - [Identify management connectivity configurations]A BIG-IP Administrator needs to verify the state of equipment in the data center.A BIG-IP appliance has asolid yellow indicatoron the status LED.How should the administrator interpret this LED indicator?Appliance is halted or in End-User Diagnostic (EUD) modeAppliance is a standby member in a device groupA warning-level alarm condition is presentA power supply is NOT operating properlyAnswer: CExplanationBIG-IP hardware platforms use chassis LEDs to indicate system health states.Asolid yellow status LEDtypically indicates awarning condition, such as:A non-critical hardware alert
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 8 of 10A. B. C. A temperature threshold nearing limitA minor fan or sensor irregularityOther non-fatal environmental or system conditionsThis state reflects awarning-level alarm, meaning the unit is operational but requires investigation.Why the other options are incorrectA. Halted or EUD modeThis is associated with different LED patterns (usually flashing conditions or specific color codes), not a solid yellow status LED.B. Standby in device groupHA state is not indicated by the chassis status LED.Standby status is alogicaldevice state, not a hardware LED state.D. Power supply failurePower supply indicators use separate LEDs located on each power module (usually flashing amber/red), not the system status LED.Thus, asolid yellow status indicatorsignifies awarning-level alarm.Question #:8 - [Apply procedural concepts required to manage software images]Which command will display thecurrent active volumeon a BIG-IP system?tmsh show sys versiontmsh show sys software statustmsh list sys software updateAnswer: BExplanationTo identify which boot volume is currently active on a BIG-IP system, the correct command is:tmsh show sys software statusThis command displays:All installed boot volumes (HD1.1, HD1.2, HD1.3, etc.)
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 9 of 10A. B. C. The BIG-IP software version installed on each volumeTheActivefield, indicating which volume the system is currently booted fromThe installation status (“complete”, “in-progress”, “allowed”)This is thestandard and authoritativeway to determine the active boot location.Why the other options are incorrect:A. tmsh show sys versionDisplays OS version, build, and date.Doesnotshow boot locations or which volume is active.C. tmsh list sys software updateShows software update configurations, not boot volume status.Does not display which volume is active.Question #:9 - [Explain the processes of licensing, license reactivation, and license modification]When is theLicense Service Check Dateenforced on a BIG-IP system?After editing a virtual serverDuring a software installDuring system startupAnswer: BExplanationTheService Check Datedetermines whether a particular software version is allowed to run under the device’s license.When installing or upgrading TMOS, the installer checks theService Check Datestored in the BIG-IP license file.If the license date isolderthan the minimum required for the target version, the software installation isblocked.This check happensspecifically during a software install, not during routine device operations.Editing virtual servers or system startup do not trigger this validation.
Certs Exam F5 - F5CAB1Pass with Valid Exam Questions Pool 10 of 10A. B. C. Thus, the enforcement happensduring software installation.Question #:10 - [Explain the processes of licensing, license reactivation, and license modification]For an upgrade of a standalone BIG-IP, a maintenance window is available in which brief interruptions are allowed.Actions with no impact can be done outside the maintenance window.When should a license reactivation be performed?During the maintenance window.Before the maintenance window.After the maintenance window.Answer: BExplanationLicense reactivation updates the BIG-IP device’s license file to ensure:TheService Check Dateis currentThe device is eligible to install the intended TMOS versionAny module entitlement updates are receivedReactivationdoes not interrupt trafficand does not require a reboot, making it safe to performbeforethe maintenance window.F5 best practices state:Performall non-impact tasks priorto the scheduled maintenance windowLeave the window available for activities that require rebooting, such as the software installation itselfSince license reactivation isnon-disruptive, it should be donebeforethe upgrade window starts.
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