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| Section | Weight | Objectives |
|---|---|---|
| Initial Setup and Configuration | 28% | - Initialize and provision BIG-IP modules - Restore BIG-IP configuration - Configure network failover - Configure management interface and port lockdown - Perform base system configuration - Configure high-speed logging (HSL) - Install BIG-IP system |
| Traffic Management | 26% | - Create health monitors - Configure route domain - Configure persistence profiles - Create trunk and LACP - Create VLANs and self IPs - Create SNAT and DNAT objects - Configure load balancing pool and virtual server |
| Backup, Restore, and Upgrade | 26% | - Downgrade BIG-IP system - Perform UCS and SCF backup and restore operations - Backup and restore BIG-IP configuration (UCS, SCF) - Upgrade BIG-IP system (TMOS,Hotfix) - Verify upgrade and downgrade |
| Security and User Management | 20% | - Configure SSH and console access - Configure IP firewall and policy - Configure user accounts and roles (admin, resource, partition) - Configure SSL certificates - Configure AFM (Advanced Firewall Module) |
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NEW QUESTION # 25
An organization is planning to upgrade a BIG-IP system from 16.1.x to 17.1.x.
For a successful upgrade, the Service Check Date must be equal to or newer than the License Check Date required for 17.1.x.
Which command will show the Service Check Date on the BIG-IP system being upgraded?
Answer: D
Explanation:
BIG-IP licensing information, including the Service Check Date, is stored in the file:
/config/bigip.license
This file contains all license attributes downloaded from the F5 licensing server, including:
License key
Licensed modules
Useful life date
Service check date
The Service Check Date determines whether the system is eligible for upgrades to specific TMOS versions. When reviewing upgrade readiness, administrators extract this value directly from the license file with:
grep "Service check date" /config/bigip.license
Why the other options are incorrect:
/config/bigip.conf stores BIG-IP configuration objects, not license metadata.
/config/svc_chk_date.dat is not a valid file in the licensing system; it does not contain license parameters.
/config/BigDB.dat stores internal database values, not licensing attributes.
Thus, only the bigip.license file contains the correct licensing information required for verifying upgrade eligibility.
NEW QUESTION # 26
The Configuration Utility of a BIG-IP device is currently accessible via its management IP
10.53.1.245 from all VLANs.
The BIG-IP Administrator needs to restrict access so only hosts from the 10.0.0.0/24 subnet can access the Configuration Utility.
Which TMSH command accomplishes this?
Answer: B
Explanation:
BIG-IP controls access to the web-based Configuration Utility (TMUI) through the /sys httpd allow list. This parameter specifies which client IPs or subnets may initiate HTTP/HTTPS connections to the management interface.
To restrict TMUI access to only the 10.0.0.0/24 subnet:
The correct method is to modify the HTTPD allow list so that it contains only this subnet.
This requires replacing the entire current list with the new subnet using:
modify /sys httpd allow replace-all-with {10.0.0.0/24}
This ensures that only clients within 10.0.0.0/24 can reach the Configuration Utility.
NEW QUESTION # 27
The BIG-IP Administrator wants to manage the newly built F5 system through anin-band Self-IP.
The administrator has configured a VLAN and Self-IP and can ping the IP from their workstation, but cannot access the system viaSSHorHTTPS.
Whatport lockdownsettings should the BIG-IP Administrator use to allow management access on the Self-IP?
(Choose two.)
Answer: A,D
Explanation:
Self-IPs include a security feature calledPort Lockdown, which restricts which services respond on that Self- IP.
By default, Self-IPs block management access (SSH and HTTPS/TMUI), meaning an administrator cannot manage the device through in-band Self-IPs unless explicitly allowed.
Allow Mgmt / Allow Management
These settings enable only the management services required for administrative access, specifically:
* SSH (22)
* HTTPS/TMUI (443)
These options allow secure administration without opening unnecessary ports.
Why these are correct:
* They provide only the essential access for management.
* They follow F5 security best practices when using in-band admin access.
* They donotexpose all services, reducing the attack surface.
Why the other options are incorrect:
A). Allow Default
* This allows only a minimal set of system-required ports (e.g., failover, config sync), not SSH or HTTPS.
* Administrator access would still fail.
B). Allow All
* Opens all ports on the Self-IP, which isnot secure.
* Exposes services that should remain restricted.
Therefore,Allow Mgmt / Allow Managementare the correct choices.
NEW QUESTION # 28
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?
Answer: B
Explanation:
The 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.
* Option B (delete)wouldremovethe existing networks and not add the required host.
Therefore, the correct administrative action is toaddthe jump host's IP.
NEW QUESTION # 29
What does SSL offloading on F5 BIG-IP do?
Answer: D
Explanation:
SSL offloading moves the computationally expensive SSL decryption process to the BIG-IP system, improving performance by reducing the load on backend servers.
NEW QUESTION # 30
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